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Marisa Yanez Jayakar, MD

Family Practice · Santa Clara

NPI 1083142582

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
18
4 carriers
Office
1

Offices

1 location · Carbon Health Primary Care of California PC · 22 clinicians in this group

Looking this up.

Plans that list them

18 plans · 4 carriers

A missing listing does not mean out of network. Directories change, and a listing does not cover every office. Call Dr. Jayakar’s office at (408) 780-2542 to confirm they take your plan. Ask about the office you use, its medical group, referrals and appointments.

18 of 18 plans

Plans whose provider directory lists this clinician
Alignment Health Advantage PPO (PPO)Alignment Health PlanListedOct 3, 2026
Alignment Health BreathEasy (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Clarity (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Harmony (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes CalPlus (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health Heart & Diabetes Care (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Heart & Diabetes Choice (HMO C-SNP)Alignment Health PlanListedSep 28, 2026
Alignment Health Honor+ Plan (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health My Choice CalCare (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health Silicon (HMO C-SNP)Alignment Health PlanListedOct 3, 2026
Alignment Health smartHMO (HMO)Alignment Health PlanListedOct 3, 2026
Alignment Health the ONE (HMO)Alignment Health PlanListedOct 3, 2026
Blue Shield Inspire (HMO)Blue Shield of CaliforniaListedAug 26, 2026
Imperial Courage Plan (HMO)Imperial Health Plan of California, Inc.ListedSep 1, 2026
Imperial Dynamic Plan (HMO)Imperial Health Plan of California, Inc.ListedSep 1, 2026
Imperial Senior Value (HMO C-SNP)Imperial Health Plan of California, Inc.ListedSep 1, 2026
SCAN Strive (HMO C-SNP)SCAN Health PlanListedOct 3, 2026

California Medical Board record

Licence A157257 · Current

Licensed to practise in California · since 2018 · expires 2028-07-31 · David Geffen School of Medicine at UCLA.

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

Original Medicare doctor bills

$4,260

Medicare paid this office $4,260 for 26 people.

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

Largest Original Medicare bills
Return visit (30+ min)17$2,381$82

Who their Medicare patients are

26 Original Medicare patients in 2024. Average age 70 · Women 54% · Also on Medicaid 0% · Health risk score 0.51. At or below the middle of the specialty; the typical family practice clinician is at 1.13.

Conditions among them: High blood pressure 42%.

The office billed $18,674, Medicare allowed $6,929 and paid $4,260; for 50 services of 9 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
20242650700.51$18,674$4,260
202349120710.78$26,630$7,526
202269158720.71$30,717$8,688
20215475730.69$18,859$5,789

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)15$2,238$102
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit11$1,715$156
Short return visit (20+ min)16$1,427$65
Insertion of needle into vein for collection of blood sample22$193$8

2022: 4 services

Original Medicare services billed in 2022
Return visit (30+ min)16$2,482$89
Short return visit (20+ min)15$2,072$80
Adm sarscv2 bvl 50mcg/.5ml a11$524$48
Insertion of needle into vein for collection of blood sample16$53$3

2021: 1 service

Original Medicare services billed in 2021
Short return visit (20+ min)13$1,293$92

Medicaid work

$2,140 in 2021

Medicaid paid $2,140 for 59 billed services this clinician did in 2021, up to 18 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 2021
Global fee urgent care centers32$2,086
Short return visit13$54
OFFICE/OUTPATIENT NEW SF MDM 15 MINUTES14$0
Medicaid work by year
202159318$2,140

Drugs they prescribed that Part D paid

$58,790

Pharmacies billed $58,790 in 2024.

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

664 generic and fewer than 11 brand-name prescriptions · $58,790 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
Jardiance11$11,426$1,039
Atorvastatin69$379$5
Levothyroxine29$376$13
Metformin51$319$6
Gabapentin12$276$23
See all 16 drugs
Every Part D drug this clinician prescribed
Jardiance11$11,426$1,039
Atorvastatin69$379$5
Levothyroxine29$376$13
Metformin51$319$6
Gabapentin12$276$23
Telmisartan13$225$17
Losartan57$216$4
Fluticasone Propionate16$166$10
Amlodipine Besylate52$136$3
Alendronate11$95$9
Lisinopril20$87$4
Albuterol Sulfate Hfa14$84$6
Metoprolol12$68$6
Hydrochlorothiazide19$66$3
Rosuvastatin20$59$3
Sertraline14$41$3

Year by year

Part D prescribing by year
2024738109NoneNone$58,790
20238681130% (0)None$104,784
202259378NoneNone$66,491
202178360% (0)None$3,145
2020230407% (17)None$14,723
2019340615% (18)16%$26,268
20181062412% (13)20%$9,364

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

See the drugs prescribed each year

2023: 22 drugs

Part D drugs prescribed in 2023
Atorvastatin86$1,747$20
Losartan53$811$15
Albuterol Sulfate Hfa19$810$43
Levothyroxine45$707$16
Gabapentin21$696$33
Glipizide18$617$34
Metformin48$615$13
Amlodipine Besylate50$510$10
Lisinopril35$476$14
Paroxetine13$439$34
Alendronate18$399$22
Metoprolol15$379$25
Diltiazem12$366$31
Trazodone12$198$16
Simvastatin12$187$16
Lovastatin11$165$15
Hydrochlorothiazide31$128$4
Rosuvastatin13$127$10
Omeprazole15$108$7
Fluticasone Propionate11$69$6
Baclofen14$48$3
Fluoxetine14$43$3

2022: 14 drugs

Part D drugs prescribed in 2022
Atorvastatin48$861$18
Levothyroxine31$554$18
Gabapentin19$503$26
Glipizide22$494$22
Albuterol Sulfate Hfa11$421$38
Amlodipine Besylate27$375$14
Metformin41$363$9
Metoprolol12$311$26
Lisinopril30$310$10
Benazepril12$283$24
Losartan28$222$8
Omeprazole11$197$18
Hydrochlorothiazide17$131$8
Fluoxetine12$24$2

2020: 3 drugs

Part D drugs prescribed in 2020
Atorvastatin32$291$9
Losartan12$99$8
Amlodipine Besylate16$32$2

2019: 6 drugs

Part D drugs prescribed in 2019
Trulicity14$10,211$729
Atorvastatin39$478$12
Losartan32$209$7
Amlodipine Besylate26$159$6
Hydrocodone-Acetaminophen11$135$12
Ranitidine12$53$4

Money from drug and device companies

$24 in 2023

Industry payments by year
202311None$24
202213None$59

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
Abbott LaboratoriesFreestyle Libre 3$24
1 payment
  • Meals for Freestyle Libre 3 · 2023-02-24 · $24
See the published payment
Every published payment
Abbott LaboratoriesMeals · 2023-02-24Freestyle Libre 3$24
See earlier years (2022)

2022: $59

Payments by company in 2022
Abbott LaboratoriesFreestyle Libre 2$59
3 payments
  • Meals for Freestyle Libre 2 · 2022-08-24 · $20
  • Meals for Freestyle Libre 2 · 2022-06-23 · $20
  • Meals for Freestyle Libre 2 · 2022-01-27 · $19

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
GlaxoSmithKline, LLC. · A Multicentre Randomized, Double-Blind, Placebo-Controlled, Dose-Findi · 2024Their institution$182,111
GlaxoSmithKline, LLC. · A Multicentre Randomized, Double-Blind, Placebo-Controlled, Dose-Findi · 2025Their institution$20,739

Professional record

NPI
1083142582
Licence
CA A157257California A157257: Current · expires 2028-07-31
Trained
University of California, Geffen School of Medicine, 2017
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Federal specialty code 207QS0010X (207QS0010X)
Mailing address
555 Castro St, Mountain View, CA, 94041
NPI first listed
2017-05-27
NPI last updated
2026-07-08
NPI record certified
2026-07-08

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