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Caren Marie Pfieffer, NP-C

Family · Palo Alto

NPI 1124469085

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
Not verified
Not the same as out of network.
Office
1

Offices

1 location

Plan participation

Not verified

We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Caren Marie Pfieffer’s office at (888) 731-8994 to ask if they take your plan before you enroll.

Medicaid work

$39,932 in 2023

Medicaid paid $39,932 for 646 billed services this clinician did in 2023, up to 49 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 2023
Return visit (30+ min)240$19,507
Short return visit (20+ min)312$19,196
Telephone evaluation and management service by a physician or other qualified health care professional who may report evaluation and management services provided to an established patient, parent, or guardian not originating from a related E/M service provided within the previous 7 days nor leading to an E/M service or procedure within the next 24 hours or soonest available appointment; 5-10 minutes of medical discussion16$724
Short return visit13$351
COLLECTION VENOUS BLOOD VENIPUNCTURE65$154
Medicaid work by year
2023646549$39,932
2022387448$26,206
202155215$3,886
2020233224$13,210
See the largest Medicaid services in earlier years

2022

Largest Medicaid services in 2022
Short return visit (20+ min)208$12,091
Return visit (30+ min)136$10,917
Telephone evaluation and management service by a physician or other qualified health care professional who may report evaluation and management services provided to an established patient, parent, or guardian not originating from a related E/M service provided within the previous 7 days nor leading to an E/M service or procedure within the next 24 hours or soonest available appointment; 11-20 minutes of medical discussion31$2,012
Periodic comprehensive preventive medicine reevaluation and management of an individual including an age and gender appropriate history, examination, counseling/anticipatory guidance/risk factor reduction interventions, and the ordering of laboratory/diagnostic procedures, established patient; adolescent (age 12 through 17 years)12$1,186

2021

Largest Medicaid services in 2021
Return visit (30+ min)39$3,119
Short return visit (20+ min)16$767

2020

Largest Medicaid services in 2020
Return visit (30+ min)120$8,056
Short return visit (20+ min)113$5,155

Drugs they prescribed that Part D paid

$6,151

Pharmacies billed $6,151 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 62) in 2024. At or below the middle of the specialty; the typical nurse practitioner clinician is at 0%.

50 generic and fewer than 11 brand-name prescriptions · $6,151 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
Levothyroxine12$183$15

Year by year

Part D prescribing by year
202462140% (0)None$6,151
2023915771% (12)None$89,146
20221,2443131% (16)15%$82,482
20211,0754313% (27)None$56,903
20201,4675626% (85)13%$96,359
20191,4193873% (39)None$96,066
20181,042134NoneNone$62,010
2017395737% (26)None$17,291
201623640NoneNone$7,661
2015795702% (15)20%$39,231
20141,031862% (23)18%$39,987
201312728NoneNone$5,377

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

See the drugs prescribed each year

2023: 17 drugs

Part D drugs prescribed in 2023
Jardiance11$8,192$745
Spiriva Handihaler13$7,112$547
Atorvastatin72$1,260$17
Levothyroxine62$919$15
Albuterol Sulfate Hfa37$868$23
Metformin65$848$13
Lisinopril89$707$8
Gabapentin37$681$18
Pantoprazole29$669$23
Rosuvastatin22$649$30
Omeprazole42$539$13
Diclofenac12$418$35
Fluticasone Propionate17$379$22
Montelukast13$303$23
Metoprolol21$234$11
Lisinopril-Hydrochlorothiazide16$178$11
Losartan12$137$11

2022: 31 drugs

Part D drugs prescribed in 2022
Trelegy Ellipta13$9,919$763
Synthroid16$2,001$125
Albuterol Sulfate Hfa38$1,358$36
Levothyroxine82$1,183$14
Rosuvastatin32$740$23
Gabapentin34$704$21
Bupropion Xl15$676$45
Atorvastatin55$636$12
Pantoprazole36$624$17
Nystatin11$497$45
Fluticasone Propionate24$471$20
Lisinopril52$438$8
Azelastine13$377$29
Montelukast25$365$15
Omeprazole25$314$13
Nitrofurantoin Mono-Macro13$305$23
Venlafaxine Hcl Er12$299$25
Metformin22$276$13
Trazodone25$265$11
Losartan23$240$10
Amoxicillin-Clavulanate Potass19$225$12
Escitalopram19$220$12
Metoprolol20$178$9
Methylprednisolone14$159$11
Amlodipine Besylate29$154$5
Tizanidine11$113$10
Simvastatin11$100$9
Fluconazole12$88$7
Doxycycline Hyclate14$85$6
Alprazolam13$71$5
Prednisone21$38$2

2021: 27 drugs

Part D drugs prescribed in 2021
Ursodiol13$2,817$217
Levothyroxine50$1,339$27
Atorvastatin54$809$15
Azelastine16$577$36
Albuterol Sulfate Hfa15$565$38
Fluticasone Propionate21$558$27
Amlodipine Besylate48$459$10
Losartan26$440$17
Lisinopril46$423$9
Omeprazole26$328$13
Simvastatin29$321$11
Pantoprazole13$300$23
Atenolol25$290$12
Metoprolol16$263$16
Trazodone18$245$14
Amoxicillin-Clavulanate Potass22$216$10
Famotidine14$214$15
Metformin19$208$11
Nitrofurantoin Mono-Macro14$183$13
Metoprolol17$146$9
Allopurinol11$142$13
Tizanidine15$141$9
Lisinopril-Hydrochlorothiazide15$131$9
Cephalexin18$105$6
Tramadol15$75$5
Fluconazole11$61$6
Prednisone15$38$3

2020: 39 drugs

Part D drugs prescribed in 2020
Lantus Solostar11$7,962$724
Levothyroxine54$1,446$27
Proair Hfa12$890$74
Lisinopril71$886$12
Atorvastatin66$831$13
Trazodone30$671$22
Hydrocodone-Acetaminophen32$653$20
Azelastine17$646$38
Losartan36$644$18
Metformin40$624$16
Ketoconazole14$560$40
Pantoprazole27$504$19
Atenolol26$503$19
Gabapentin24$488$20
Simvastatin54$471$9
Glipizide Er11$460$42
Potassium Chloride13$459$35
Metoprolol15$454$30
Albuterol Sulfate Hfa11$454$41
Amlodipine Besylate49$432$9
Tamsulosin16$430$27
Pravastatin19$420$22
Tramadol34$340$10
Omeprazole25$310$12
Diclofenac13$257$20
Tizanidine20$254$13
Amoxicillin-Clavulanate Potass20$212$11
Fluticasone Propionate15$212$14
Oxycodone14$199$14
Nystatin12$162$14
Hydrochlorothiazide12$154$13
Alprazolam19$144$8
Doxycycline Hyclate12$138$12
Sertraline13$137$11
Famotidine11$119$11
Cephalexin29$114$4
Zolpidem13$89$7
Furosemide16$80$5
Metoprolol12$57$5

2019: 36 drugs

Part D drugs prescribed in 2019
Breo Ellipta25$8,970$359
Symbicort23$7,592$330
Januvia11$5,124$466
Lantus Solostar11$4,122$375
Ventolin Hfa16$927$58
Levothyroxine44$894$20
Ketoconazole11$813$74
Atorvastatin82$639$8
Albuterol Sulfate Hfa13$518$40
Metoprolol24$433$18
Gabapentin41$386$9
Montelukast34$366$11
Omeprazole28$314$11
Losartan35$308$9
Doxycycline Hyclate13$285$22
Fluticasone Propionate23$277$12
Pantoprazole25$247$10
Trazodone14$236$17
Amlodipine Besylate57$235$4
Lisinopril46$214$5
Metformin44$198$5
Hydrochlorothiazide28$148$5
Pioglitazone14$145$10
Clopidogrel21$136$6
Metoprolol23$130$6
Simvastatin29$124$4
Triamcinolone Acetonide12$110$9
Naproxen18$108$6
Cephalexin16$103$6
Famotidine25$100$4
Sertraline22$98$4
Lisinopril-Hydrochlorothiazide17$68$4
Alendronate19$61$3
Glipizide11$50$5
Tramadol16$49$3
Furosemide14$35$3

2018: 24 drugs

Part D drugs prescribed in 2018
Symbicort13$6,083$468
Ventolin Hfa36$2,281$63
Atorvastatin61$549$9
Levetiracetam18$537$30
Levothyroxine30$409$14
Lisinopril77$361$5
Gabapentin21$312$15
Simvastatin49$260$5
Allopurinol13$223$17
Olanzapine15$185$12
Metoprolol34$173$5
Amlodipine Besylate40$166$4
Omeprazole18$164$9
Fluticasone Propionate16$158$10
Metformin27$156$6
Losartan30$144$5
Alendronate26$131$5
Furosemide25$115$5
Hydrochlorothiazide22$112$5
Pantoprazole11$108$10
Ranitidine15$97$6
Lovastatin12$83$7
Sertraline13$52$4
Meloxicam12$31$3

2017: 8 drugs

Part D drugs prescribed in 2017
Gabapentin13$146$11
Atorvastatin14$133$10
Lisinopril24$128$5
Simvastatin12$85$7
Metoprolol16$70$4
Furosemide18$62$3
Alendronate11$60$5
Amlodipine Besylate12$56$5

2016: 4 drugs

Part D drugs prescribed in 2016
Metformin14$220$16
Simvastatin26$184$7
Lisinopril15$71$5
Omeprazole14$66$5

2015: 23 drugs

Part D drugs prescribed in 2015
Lantus28$14,091$503
Pravastatin34$898$26
Levothyroxine52$741$14
Losartan26$386$15
Clopidogrel25$379$15
Fluticasone Propionate16$312$19
Atorvastatin25$305$12
Fenofibrate12$294$25
Metformin58$238$4
Topiramate15$183$12
Lisinopril44$171$4
Omeprazole24$143$6
Warfarin11$123$11
Amlodipine Besylate32$114$4
Hydrochlorothiazide12$102$9
Amitriptyline13$99$8
Gabapentin12$98$8
Carvedilol17$97$6
Metoprolol12$88$7
Furosemide16$80$5
Glipizide15$73$5
Naproxen15$68$5
Tramadol11$46$4

2014: 32 drugs

Part D drugs prescribed in 2014
Lantus18$6,230$346
Novolin 70-3011$2,144$195
Pravastatin41$1,218$30
Proair Hfa23$1,133$49
Levothyroxine72$886$12
Clopidogrel28$611$22
Fluticasone Propionate30$495$17
Omeprazole43$448$10
Lisinopril68$424$6
Metformin53$370$7
Sure Comfort11$353$32
Metoprolol26$304$12
Digoxin11$286$26
Fenofibrate14$271$19
Losartan24$246$10
Carvedilol24$223$9
Ranitidine28$216$8
Lovastatin15$215$14
Isosorbide Mononitrate Er17$212$12
Atorvastatin17$203$12
Metoprolol11$189$17
Simvastatin24$148$6
Glipizide19$133$7
Hydrochlorothiazide19$131$7
Warfarin18$126$7
Gabapentin11$123$11
Amlodipine Besylate17$97$6
Furosemide28$83$3
Trazodone15$78$5
Tramadol11$52$5
Diazepam12$35$3
Meloxicam11$32$3

Money from drug and device companies

$72 in 2022

Industry payments by year
202244None$72
202113None$51

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
Sunovion PharmaceuticalsGemtesa$21
1 payment
  • Meals for Gemtesa · 2022-05-31 · $21
Novo NordiskRybelsus$19
1 payment
  • Meals for Rybelsus · 2022-05-19 · $19
GlaxoSmithKlineTrelegy Ellipta$16
1 payment
  • Meals for Trelegy Ellipta · 2022-06-08 · $16
Bayer HealthCare PharmaceuticalsKerendia$15
1 payment
  • Meals for Kerendia · 2022-05-26 · $15
See all 4 published payments
Every published payment
GlaxoSmithKlineMeals · 2022-06-08Trelegy Ellipta$16
Sunovion PharmaceuticalsMeals · 2022-05-31Gemtesa$21
Bayer HealthCare PharmaceuticalsMeals · 2022-05-26Kerendia$15
Novo NordiskMeals · 2022-05-19Rybelsus$19
See earlier years (2021)

2021: $51

Payments by company in 2021
Lilly USATrulicity$51
3 payments
  • Meals for Trulicity · 2021-08-21 · $12
  • Meals for Trulicity · 2021-05-03 · $15
  • Meals for Trulicity · 2021-03-26 · $24

Professional record

NPI
1124469085
Licence
AZ AP5092
More record details
Sole proprietor
No
Taxonomy
Federal specialty code 363LF0000X (363LF0000X)
Mailing address
14355 Miranda Way, Los Altos Hills, CA, 94022
NPI first listed
2013-07-08
NPI last updated
2026-05-15
NPI record certified
2026-05-15

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

Extra NPI addresses: 4254 W Orchid Ln, Chandler, AZ, 85226 · 14355 Miranda Way, Los Altos Hills, CA, 94022 · 421 Fayetteville St Ste 1100, Raleigh, NC, 27601 · 1000 N West St Ste 1200, Wilmington, DE, 19801