NPPES file of Aug 9, 2026

Raphael B. Merriman, MD

Transplant Hepatology Physician · San Francisco, CA

Raphael B. Merriman, MD is a transplant hepatology physician with a practice address in San Francisco, California, and NPI 1942258728, issued on May 4, 2006. Check the license (California 070327, 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
1942258728
Name
Raphael B. Merriman
Credential
MD
Primary taxonomy
Transplant Hepatology Physician 207RT0003X
License number
070327 CA
Self-reported in NPPES; status is on the state search
Practice location
1100 Van Ness Ave, San Francisco, CA 94109
Phone
(415) 600-1000
Enumerated
May 4, 2006
Record last updated
Oct 28, 2022
Fax
(415) 558-7051
Medicaid ID
0H4165600 CA
Medicare enrollment
Enrolled (PECOS I20061031000571); 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 1100 Van Ness Ave

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

  1. Anousheh Afjei, MDInternal Medicine Physician1992365431
  2. Mohammed Ahmed, MDInternal Medicine Physician1700245115
  3. Haila AlbgalFamily Nurse Practitioner1417566043
  4. Ashley Arnold, LCSWClinical Social Worker1710559687
  5. Anjali Asrani, NPNurse Practitioner1184279770
  6. Ginny BaoEndocrinology, Diabetes & Metabolism Physician1801383286

Verify Raphael B. Merriman in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 070327
    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

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2.5 times the Medicare Part D claims of the average transplant hepatology physician in 2024

1,662 Medicare Part D claims for 247 beneficiaries, against an average of 669 among the 251 providers of this specialty who prescribed in Part D. 11 claims were for opioids.

  1. Raphael Merriman1,662
  2. Specialty average669

Most prescribed

  1. Tacrolimus151 claims
  2. Ursodiol127 claims
  3. Vemlidy120 claims
  4. Xifaxan111 claims
  5. Furosemide101 claims
  6. Spironolactone98 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.

Bills Medicare through one group practice

  1. Sutter Bay Medical FoundationSan Francisco, CA

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

Raphael B. Merriman among 42 transplant hepatology physician records in California

Raphael B. Merriman, MD is one of 42 transplant hepatology physician records with a practice address in California. 98% 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 2% of them.

  • NPI issued2006 · 2% of these records are older, 74% newer
  • In a Medicare fileYes · 98% of these records are
  • In the CMS Doctors and Clinicians fileYes · 90% of these records are
  • Graduated1990 · median 2005 among the 38 with a school on file
  • Record last updated2022 · 29% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RT0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Transplant Hepatology Physician providers in California

There are 42 transplant hepatology physician records in California.

The 8 transplant hepatology physician records with the nearest ZIP codes

  1. Stewart Cooper, M.D.San Francisco, CA 941091780604645
  2. Timothy Davern, MDSan Francisco, CA 941091699723379
  3. Jennifer Guy, M.D.San Francisco, CA 941091710137872
  4. Edward Holt, MDSan Francisco, CA 941091891816369
  5. Adil Wakil, MDSan Francisco, CA 941091043237712
  6. Kidist Yimam, M.D.San Francisco, CA 941091639321839
  7. Chanda Ho, MDSan Francisco, CA 941151689791121
  8. Jennifer Lai, M.D., M.B.A.San Francisco, CA 941171649397241

Common questions

What is Raphael B. Merriman, MD's NPI number?

Raphael B. Merriman, MD's National Provider Identifier (NPI) is 1942258728, issued on May 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Raphael B. Merriman, MD located?

The NPPES record lists a practice address at 1100 Van Ness Ave, San Francisco, CA, 94109. Phone: (415) 600-1000. Providers update this record themselves, so call before visiting.

How can I verify Raphael B. Merriman, MD's license?

NPPES lists California license number 070327, 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 Raphael B. Merriman, MD prescribe under Medicare Part D?

In 2024, Raphael B. Merriman, MD had 1,662 Medicare Part D claims for 247 beneficiaries; the average among transplant hepatology physician prescribers was 669. 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.