NPPES file of Aug 9, 2026

Marjan Naraghi-Arani, D.O.

Family Medicine Physician · San Ramon, CA

Marjan Naraghi-Arani, D.O. is a family medicine physician with a practice address in San Ramon, California, and NPI 1821187881, issued on Oct 11, 2006. Check the license (California 20A7552, 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
1821187881
Name
Marjan Naraghi-Arani
Credential
D.O.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
20A7552 CA
Self-reported in NPPES; status is on the state search
Practice location
200 Porter Drive, San Ramon, CA 94583
Phone
(925) 838-6511
Enumerated
Oct 11, 2006
Record last updated
Mar 7, 2023
Fax
(925) 838-6544
Medicare enrollment
Enrolled (PECOS I20110317000098); 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 200 Porter Drive

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

  1. Kushal Chhabra, MDInternal Medicine Physician1255332953
  2. Mary Gabrielson, CFNPPediatric Nurse Practitioner1356331573
  3. Colleen Hogan, MDPediatrics Physician1992795124
  4. Janice Lee, MDInternal Medicine Physician1407835432
  5. Thomas Long, MDPediatrics Physician1801887930
  6. Praise Shang, M.D.Family Medicine Physician1265522346

Verify Marjan Naraghi-Arani in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A7552
    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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19% fewer Medicare Part D claims than the average family medicine physician in 2024

2,887 Medicare Part D claims for 354 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 18 claims were for opioids.

  1. Marjan Naraghi-Arani2,887
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium185 claims
  2. Rosuvastatin Calcium178 claims
  3. Levothyroxine Sodium176 claims
  4. Amlodipine Besylate140 claims
  5. Lisinopril106 claims
  6. Hydrochlorothiazide96 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: $547.83

18 payments; by number, the most common kind was food and beverage; the largest payer was GlaxoSmithKline, LLC. 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. Marjan Naraghi-Arani$547.83
  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. John Muir Physician NetworkSan Ramon, CA

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

Marjan Naraghi-Arani among 17,133 family medicine physician records in California

Marjan Naraghi-Arani, D.O. 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 2006, is newer than 6% of them.

  • NPI issued2006 · 6% of these records are older, 59% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1998 · median 2005 among the 10,652 with a school on file
  • Record last updated2023 · 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).

34 family medicine physician records list a practice address in San Ramon

They are 34 of the 2,281 NPPES records with a practice address in San Ramon, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Eena Duggal, M.D.San Ramon, CA 945831619052271
  2. Bradford Flagg, M.D.San Ramon, CA 945831346323086
  3. Ralph Fong, M.D.San Ramon, CA 945831447290994
  4. Ethan Hollander, M.D.San Ramon, CA 945831528003597
  5. Afsheen Mostofi, D.O.San Ramon, CA 945831275607848
  6. Dolores Musco, M.D.San Ramon, CA 945831679601611
  7. Mark Musco, M.D.San Ramon, CA 945831578691523
  8. Jolanta Omski, MDSan Ramon, CA 945831881635688

Common questions

What is Marjan Naraghi-Arani, D.O.'s NPI number?

Marjan Naraghi-Arani, D.O.'s National Provider Identifier (NPI) is 1821187881, issued on Oct 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marjan Naraghi-Arani, D.O. located?

The NPPES record lists a practice address at 200 Porter Drive, San Ramon, CA, 94583. Phone: (925) 838-6511. Providers update this record themselves, so call before visiting.

How can I verify Marjan Naraghi-Arani, D.O.'s license?

NPPES lists California license number 20A7552, 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 Marjan Naraghi-Arani, D.O. prescribe under Medicare Part D?

In 2024, Marjan Naraghi-Arani, D.O. had 2,887 Medicare Part D claims for 354 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.