NPPES file of Aug 9, 2026

Roger M. Iliff, M.D.

Family Medicine Physician · Orinda, CA

Roger M. Iliff, M.D. is a family medicine physician with a practice address in Orinda, California, and NPI 1235244716, issued on Aug 21, 2006. Check the license (California G38694, 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
1235244716
Name
Roger M. Iliff
Credential
M.D.
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
G38694 CA
Self-reported in NPPES; status is on the state search
Practice location
12 Camino Encinas, Orinda, CA 94563
Phone
(510) 204-8180
Enumerated
Aug 21, 2006
Record last updated
Oct 21, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(925) 254-0687
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 12 Camino Encinas

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

  1. Omeed Atefi, DOFamily Medicine Physician1073141099
  2. Jyothi Bachwani, M.D.Internal Medicine Physician1659489979
  3. John Carrigg, MDOtolaryngology Physician1285652859
  4. Anny Ching, M.D.Family Medicine Physician1376961490
  5. Jill Foley, M.D.Obstetrics & Gynecology Physician1174631709
  6. Marilyn Honegger, M.D.Obstetrics & Gynecology Physician1376548156

Verify Roger M. Iliff in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G38694
    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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100% fewer Medicare Part D claims than the average family medicine physician in 2024

15 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.

  1. Roger Iliff15
  2. Specialty average3,544

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.

Roger M. Iliff among 17,133 family medicine physician records in California

Roger M. Iliff, 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 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 fileNo · 62% of these records are
  • Record last updated2011 · 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).

9 family medicine physician records list a practice address in Orinda

They are 9 of the 278 NPPES records with a practice address in Orinda, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Omeed Atefi, DOOrinda, CA 945631073141099
  2. Anny Ching, M.D.Orinda, CA 945631376961490
  3. Gagan Malhi, DOOrinda, CA 945631366070807
  4. Tiffany McClure, MDOrinda, CA 945631891358313
  5. Sri Nimmagadda, MDOrinda, CA 945631487090247
  6. Frederick Oh, M.D.Orinda, CA 945631083840458
  7. Michelle Simi, M.D.Orinda, CA 945631346465630
  8. Malaika Stoll, M.D.Orinda, CA 945631366616799

Common questions

What is Roger M. Iliff, M.D.'s NPI number?

Roger M. Iliff, M.D.'s National Provider Identifier (NPI) is 1235244716, issued on Aug 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Roger M. Iliff, M.D. located?

The NPPES record lists a practice address at 12 Camino Encinas, Orinda, CA, 94563. Phone: (510) 204-8180. Providers update this record themselves, so call before visiting.

How can I verify Roger M. Iliff, M.D.'s license?

NPPES lists California license number G38694, 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 Roger M. Iliff, M.D. prescribe under Medicare Part D?

In 2024, Roger M. Iliff, M.D. had 15 Medicare Part D claims; 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.