NPPES file of Aug 9, 2026

Tighe Roderick Ohanrahan, MD

Family Medicine Physician · Walnut Creek, CA

Tighe Roderick Ohanrahan, MD is a family medicine physician with a practice address in Walnut Creek, California, and NPI 1316977846, issued on Jul 3, 2006. Check the license (California G23997, 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
1316977846
Name
Tighe Roderick Ohanrahan
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
G23997 CA
Self-reported in NPPES; status is on the state search
Practice location
120 LA Casa Via, Walnut Creek, CA 94598
Phone
(925) 934-5380
Enumerated
Jul 3, 2006
Record last updated
Sep 23, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(925) 934-5192
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 120 LA Casa Via

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

  1. Rashmi Dixit, M.D.Rheumatology Physician1811990666
  2. Zuzana Foster, M.D.Rheumatology Physician1184621542
  3. Janelle Gonsalves, PTAPhysical Therapist1770635468
  4. Ashley Gruendl, P.T.Physical Therapist1588062442
  5. Henry Kung, M.D.Gastroenterology Physician1518941673
  6. John Loeb, M.D.Rheumatology Physician1932106390

Verify Tighe Roderick Ohanrahan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G23997
    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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98% fewer Medicare Part D claims than the average family medicine physician in 2024

63 Medicare Part D claims, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.

  1. Tighe Ohanrahan63
  2. Specialty average3,544

Most prescribed

  1. Eliquis11 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.

Tighe Roderick Ohanrahan among 17,133 family medicine physician records in California

Tighe Roderick Ohanrahan, MD 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).

116 family medicine physician records list a practice address in Walnut Creek

They are 116 of the 6,170 NPPES records with a practice address in Walnut Creek, and 17,133 family medicine physician records in California.

The 8 family medicine physician records with the nearest ZIP codes

  1. Taejoon Ahn, M.D.Walnut Creek, CA 945981639198757
  2. Leatrice Chang, MDWalnut Creek, CA 945981700822053
  3. John Crockett, M.D.Walnut Creek, CA 945981134221021
  4. Dennis Fong, M.D.Walnut Creek, CA 945981356364871
  5. Paul Kim, M.D.Walnut Creek, CA 945981609831163
  6. Pavani Kuruma, MDWalnut Creek, CA 945981285601310
  7. Franklin Long, MD MPHTMWalnut Creek, CA 945981194744045
  8. Timmothy Merrigan, M.D.Walnut Creek, CA 945981063442945

Common questions

What is Tighe Roderick Ohanrahan, MD's NPI number?

Tighe Roderick Ohanrahan, MD's National Provider Identifier (NPI) is 1316977846, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Tighe Roderick Ohanrahan, MD located?

The NPPES record lists a practice address at 120 LA Casa Via, Walnut Creek, CA, 94598. Phone: (925) 934-5380. Providers update this record themselves, so call before visiting.

How can I verify Tighe Roderick Ohanrahan, MD's license?

NPPES lists California license number G23997, 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 Tighe Roderick Ohanrahan, MD prescribe under Medicare Part D?

In 2024, Tighe Roderick Ohanrahan, MD had 63 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.