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Katayoun Lotfi, MD

Endocrinology · Los Altos

NPI 1619288685

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
2
2 carriers
Offices
7

Offices

7 locations · Sutter Bay Medical Foundation · 3,783 clinicians in this group

Looking this up.

Plans that list them

2 plans · 2 carriers

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Lotfi’s office to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

2 of 2 plans

Plans whose provider directory lists this clinician
Alignment Health Sutter Advantage +More (HMO)Alignment Health PlanListedOct 3, 2026
DualConnect (HMO D-SNP)Santa Clara Family Health PlanListedSep 1, 2026

California Medical Board record

Licence A134702 · Current

Licensed to practise in California · since 2015 · expires 2028-08-31 · Royal College of Surgeons in Ireland Medical School.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

Original Medicare doctor bills

$38,191

Medicare paid this office $38,191 for 175 people.

This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.

Largest Original Medicare bills
Return visit (30+ min)97$16,004$102
Short return visit (20+ min)80$11,333$75
New patient visit (60+ min)41$7,045$172
Long return visit (40+ min)19$3,180$151

Who their Medicare patients are

175 Original Medicare patients in 2024. Average age 70 · Women 73% · Also on Medicaid 15% · Health risk score 0.91. At or below the middle of the specialty; the typical endocrinology clinician is at 1.46.

Conditions among them: High blood pressure 69% · Diabetes 35% · Depression 26% · Coronary heart disease 22% · Atrial fibrillation 21% · Chronic kidney disease 17% · Heart failure 9% · Cancer 7%.

The office billed $141,888, Medicare allowed $53,813 and paid $38,191; for 377 services of 8 kinds.

Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.

Year by year

Original Medicare by year
2024175377700.91$141,888$38,191
2023156348690.94$138,476$39,740
2022158335671.07$121,875$36,320
2021118272670.86$100,879$32,760
202092271681.25$86,067$26,540
201965136680.84$51,590$15,165
2018168601751.23$69,656$19,719
201775243741.61$35,756$10,979
2015137268712.91$52,545$22,042
20145211,187742.36$241,912$99,995
2013193409741.99$94,170$37,819

Original Medicare only. A service billed for fewer than 11 people in a year is hidden, so the lines can add up to less than the year's total.

See the services billed each year

2023: 4 services

Original Medicare services billed in 2023
Return visit (30+ min)95$14,956$101
New patient visit (60+ min)67$12,603$188
Short return visit (20+ min)53$8,940$81
Long return visit (40+ min)17$2,670$157

2022: 4 services

Original Medicare services billed in 2022
Return visit (30+ min)89$15,917$104
New patient visit (60+ min)44$8,100$184
Short return visit (20+ min)62$7,961$80
Long return visit (40+ min)22$3,527$147

2021: 5 services

Original Medicare services billed in 2021
Return visit (30+ min)69$16,320$113
New patient visit (60+ min)24$5,066$211
Long return visit (40+ min)25$4,448$165
Short return visit (20+ min)29$3,488$73
New patient visit (45+ min)22$3,182$145

2020: 5 services

Original Medicare services billed in 2020
Return visit (30+ min)56$14,393$97
New patient visit (45+ min)19$2,904$153
Long return visit (40+ min)18$2,642$132
Telephone medical discussion with physician, 21-30 minutes18$2,489$104
Short return visit (20+ min)21$2,419$59

2019: 3 services

Original Medicare services billed in 2019
Return visit (30+ min)34$6,685$103
New patient visit (45+ min)28$3,980$142
Long return visit (40+ min)25$3,067$123

2018: 4 services

Original Medicare services billed in 2018
Return visit (30+ min)96$8,684$90
Short return visit (20+ min)43$2,622$61
New patient visit (30+ min)11$959$87
Urinalysis, manual test12$41$3

2017: 3 services

Original Medicare services billed in 2017
Return visit (30+ min)54$6,012$99
New patient visit (45+ min)14$2,128$152
Short return visit (20+ min)13$946$68

2015: 4 services

Original Medicare services billed in 2015
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes76$9,841$86
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes45$3,891$59
Hospital discharge day management, more than 30 minutes35$3,214$89
Initial hospital care with moderate level of medical decision making at least 75 minutes13$2,166$167

2014: 10 services

Original Medicare services billed in 2014
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes267$37,312$85
Hospital discharge day management, more than 30 minutes192$17,136$88
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes174$16,309$59
Initial hospital care with moderate level of medical decision making at least 75 minutes73$12,807$166
Initial hospital observation care per day, typically 70 minutes29$4,405$152
Hospital observation care on day of discharge59$3,532$60
Follow-up observation care per day, typically 35 minutes19$1,632$86
Subsequent hospital care with straightforward or low level of medical decision making, per day at least 25 minutes13$1,123$32
Hospital discharge day management, 30 minutes or less13$780$60
Follow-up observation care per day, typically 25 minutes12$774$60

2013: 7 services

Original Medicare services billed in 2013
Subsequent hospital care with moderate levelof medical decision making at least 50 minutes95$14,467$83
Initial hospital care with moderate level of medical decision making at least 75 minutes45$7,277$162
Hospital discharge day management, more than 30 minutes64$5,622$86
Initial hospital observation care per day, typically 70 minutes19$2,805$148
Subsequent hospital care with moderate levelof medical decision making at least 35 minutes36$2,639$57
Extended inpatient or observation hospital service, first hour11$954$73
Hospital observation care on day of discharge16$934$58

Medicaid work

$26,028 in 2024

Medicaid paid $26,028 for 250 billed services this clinician did in 2024, up to 32 people in a month for one service.

Medicaid and CHIP claims where this clinician did the service, fee-for-service and managed care together. Any month with fewer than 11 patients is hidden, so small Medicaid practices undercount.

Largest Medicaid services in 2024
Return visit (30+ min)250$26,028
Medicaid work by year
2024250132$26,028
2023356140$29,691
2022405236$28,999
2021227223$17,343
202039112$2,303
See the largest Medicaid services in earlier years

2023

Largest Medicaid services in 2023
Return visit (30+ min)356$29,691

2022

Largest Medicaid services in 2022
Return visit (30+ min)335$25,595
Short return visit (20+ min)70$3,404

2021

Largest Medicaid services in 2021
Short return visit (20+ min)122$8,923
Return visit (30+ min)105$8,419

2020

Largest Medicaid services in 2020
Short return visit (20+ min)39$2,303

Drugs they prescribed that Part D paid

$486,579

Pharmacies billed $486,579 in 2024.

This is pharmacy cost, not the office bill, and not what patients paid.

Opioids were 0% of their Part D prescriptions (0 of 633) in 2024. At or below the middle of the specialty; the typical endocrinology clinician is at 0%.

0 generic and 427 brand-name prescriptions · $486,579 in drug cost.

Part D prescriptions only. The opioid rate is opioid prescriptions as a share of all this clinician's Part D prescriptions; surgeons and pain specialists run higher than others, so it is shown against the same specialty.

Largest Part D drug costs
Ozempic210$248,648$1,184
Mounjaro132$143,155$1,085
Wegovy28$44,806$1,600
Topiramate39$683$18
Metformin Hcl Er29$372$13
See all 10 drugs
Every Part D drug this clinician prescribed
Ozempic210$248,648$1,184
Mounjaro132$143,155$1,085
Wegovy28$44,806$1,600
Topiramate39$683$18
Metformin Hcl Er29$372$13
Levoxyl13$315$24
Levothyroxine13$195$15
Ondansetron Odt14$170$12
Metformin12$123$10
Atorvastatin15$102$7

Year by year

Part D prescribing by year
20246331020% (0)67%$486,579
20237001360% (0)70%$571,679
2022399810% (0)56%$248,882
2021323680% (0)None$153,945
2020229420% (0)42%$84,479
201991270% (0)None$14,975
201817382None26%$22,094
201761280% (0)None$10,255
201514655NoneNone$7,093
20141821078% (14)16%$14,552
20139845None19%$6,900

Part D prescriptions only. A drug prescribed to fewer than 11 people in a year is hidden.

See the drugs prescribed each year

2023: 6 drugs

Part D drugs prescribed in 2023
Ozempic346$409,966$1,185
Mounjaro68$78,347$1,152
Trulicity29$30,619$1,056
Topiramate53$1,745$33
Metformin Hcl Er39$439$11
Metformin18$401$22

2022: 8 drugs

Part D drugs prescribed in 2022
Ozempic117$137,699$1,177
Rybelsus32$48,062$1,502
Jardiance12$18,668$1,556
Trulicity12$11,269$939
Mounjaro11$11,260$1,024
Topiramate69$1,549$22
Levoxyl11$119$11
Metformin Hcl Er23$115$5

2021: 6 drugs

Part D drugs prescribed in 2021
Ozempic66$67,875$1,028
Rybelsus23$32,008$1,392
Trulicity15$13,402$893
Topiramate79$1,695$21
Metformin Hcl Er12$137$11
Vitamin D211$59$5

2020: 7 drugs

Part D drugs prescribed in 2020
Ozempic20$22,483$1,124
Victoza 3-Pak21$21,381$1,018
Jardiance13$11,000$846
Topiramate62$1,425$23
Bupropion Xl13$579$45
Ultra-Fine Mini Pen Needle13$549$42
Metformin Hcl Er22$256$12

2019: 2 drugs

Part D drugs prescribed in 2019
Tradjenta11$4,520$411
Topiramate43$498$12

2018: 3 drugs

Part D drugs prescribed in 2018
Januvia13$7,351$565
Repaglinide11$862$78
Glipizide21$71$3

2015: 2 drugs

Part D drugs prescribed in 2015
Topiramate36$404$11
Metformin16$85$5

2014: 3 drugs

Part D drugs prescribed in 2014
Prednisone15$108$7
Levofloxacin11$58$5
Furosemide11$46$4

Money from drug and device companies

$217 in 2025

Industry payments by year
202512None$217
202411None$94
202211None$30
202112None$124
201913None$235

Paid work is consulting, speaking, honoraria and royalties, as opposed to meals and travel.

A payment is not proof that care is biased.

Payments by company
Novo NordiskNone$217
2 payments
  • Meals · 2025-10-02 · $92
  • Meals · 2025-07-13 · $125
See all 2 published payments
Every published payment
Novo NordiskMeals · 2025-10-02None$92
Novo NordiskMeals · 2025-07-13None$125
See earlier years (2024, 2022, 2021, 2019)

2024: $94

Payments by company in 2024
Novo NordiskNone$94
1 payment
  • Meals · 2024-09-18 · $94

2022: $30

Payments by company in 2022
Rhythm PharmaceuticalsNone$30
1 payment
  • Meals · 2022-11-02 · $30

2021: $124

Payments by company in 2021
Novo NordiskWegovy$124
2 payments
  • Meals for Wegovy · 2021-10-14 · $8
  • Meals for Wegovy · 2021-06-17 · $116

2019: $235

Payments by company in 2019
Novo NordiskSaxenda$235
3 payments
  • Meals for Saxenda · 2019-11-05 · $102
  • Meals for Saxenda · 2019-03-27 · $110
  • Meals · 2019-03-06 · $23

Research money

Money a company paid to run a study. Where it went to their institution, the clinician is named as an investigator and did not receive it; the amount covers the whole study, often across many sites.

Research payments by company and study
Novo Nordisk Inc · Heor-Palo Alto-Romanelli · 2022Their institution$146,920
Novo Nordisk AS · Heor-Palo Alto-Romanelli · 2021Their institution$70,452

Professional record

NPI
1619288685
Licence
CA A134702California A134702: Current · expires 2028-08-31
Video visits
Lists video visits
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Federal specialty code 207RE0101X (207RE0101X)
Mailing address
2350 W El Camino Real Fl 2, Mountain View, CA, 94040
NPI first listed
2010-06-24
NPI last updated
2018-12-14

This is when the NPI record was last certified, not a medical board exam.