NPPES file of Aug 9, 2026

Isaac Sinai, M.D.

Family Medicine Physician · Calabasas, CA

Isaac Sinai, M.D. is a family medicine physician with a practice address in Calabasas, California, and NPI 1669823860, issued on Jun 29, 2016. Check the license (California A158410, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1669823860
Name
Isaac Sinai
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
A158410 CA
Self-reported in NPPES; status is on the state search
Practice location
26585 Agoura RD Ste 330, Calabasas, CA 91302
Phone
(818) 876-1050
Enumerated
Jun 29, 2016
Record last updated
Jan 11, 2024
Medicare enrollment
Enrolled (PECOS I20191024000724); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 26585 Agoura RD Ste 330

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Stephen Axelrode, D.O.Family Medicine Physician1871694398
  2. Luz Delportillo, M.D.Internal Medicine Physician1760554026
  3. Keith Garb, M.D.Internal Medicine Physician1740381177
  4. Maribel GonzalezMarriage & Family Therapist1790160042
  5. Dana HongSports Medicine (Family Medicine) Physician1982276341
  6. Anthony Jang, MDPsychiatry Physician1114507787

Verify Isaac Sinai in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A158410
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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73% fewer Medicare Part D claims than the average family medicine physician in 2024

945 Medicare Part D claims for 360 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims.

  1. Isaac Sinai945
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium92 claims
  2. Amlodipine Besylate62 claims
  3. Lisinopril38 claims
  4. Metformin Hcl30 claims
  5. Rosuvastatin Calcium27 claims
  6. Losartan Potassium25 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $20.07

1 payment: food and beverage; the largest payer was Abbvie Inc. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Isaac Sinai$20.07
  2. Specialty average$902.55

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. Regents OF The University OF CaliforniaGlendale, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Isaac Sinai among 17,133 family medicine physician records in California

Isaac Sinai, M.D. is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 76% of them.

  • NPI issued2016 · 76% of these records are older, 21% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated2016 · median 2005 among the 10,652 with a school on file
  • Record last updated2024 · 58% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

10 family medicine physician records list a practice address in Calabasas

They are 10 of the 786 NPPES records with a practice address in Calabasas, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Kathleen Anderson, MDCalabasas, CA 913021629029996
  2. Stephen Axelrode, D.O.Calabasas, CA 913021871694398
  3. Robert Feher, M.D.Calabasas, CA 913021962437202
  4. Sharon Macaluso, M.D.Calabasas, CA 913021174964894
  5. Lori Musto, D.O.Calabasas, CA 913021760467286
  6. Joel Popson, MDCalabasas, CA 913021164585196
  7. Laura Purdy, MDCalabasas, CA 913021093058463
  8. Noel Purkin, M.D. FRCS(C)Calabasas, CA 913021134320625

Common questions

What is Isaac Sinai, M.D.'s NPI number?

Isaac Sinai, M.D.'s National Provider Identifier (NPI) is 1669823860, issued on Jun 29, 2016. An NPI identifies a provider in billing; it is not a license.

Where is Isaac Sinai, M.D. located?

The NPPES record lists a practice address at 26585 Agoura RD Ste 330, Calabasas, CA, 91302. Phone: (818) 876-1050. Providers update this record themselves, so call before visiting.

How can I verify Isaac Sinai, M.D.'s license?

NPPES lists California license number A158410, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Isaac Sinai, M.D. prescribe under Medicare Part D?

In 2024, Isaac Sinai, M.D. had 945 Medicare Part D claims for 360 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.