Claire Joanna Hartung, MD
Family Medicine Physician · Ukiah, CA
Claire Joanna Hartung, MD is a family medicine physician with a practice address in Ukiah, California, and NPI 1336679661, issued on Jun 19, 2017. Check the license (California A157215, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Claire Joanna Hartung
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A157215 CA
Self-reported in NPPES; status is on the state search - Practice location
- 260 Hospital Dr, Ukiah, CA 95482
- Phone
- (707) 463-7495
- Enumerated
- Jun 19, 2017
- Record last updated
- Jul 19, 2023
- Medicare enrollment
- Enrolled (PECOS I20211129001361); accepts Medicare assignment
- Medical or professional school
- University Of Rochester School Of Medicine And Dentistry, 2017
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 260 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Shakuntala BlomquistFamily Nurse Practitioner1114557345
- Theron Chan, M.D.Family Medicine Physician1952385833
- Lynne Coen, M.D.Family Medicine Physician1851375711
- Cara Eberhardt, MDAddiction Medicine (Family Medicine) Physician1174151450
- Samuel Goldberg, M.D.Pediatrics Physician1821072653
Verify Claire Joanna Hartung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A157215Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average family medicine physician in 2024
206 Medicare Part D claims for 67 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.
Most prescribed
- Furosemide12 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: $124.97
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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
3 hospitals and group practices
- County OF MontereySalinas, CA
- Hazel Hawkins Memorial HospitalHollister, CA · Critical Access Hospitals
- Salud Para LA GenteWatsonville, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov).
Claire Joanna Hartung among 17,133 family medicine physician records in California
Claire Joanna Hartung, 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 2017, is newer than 79% of them.
- NPI issued2017 · 79% of these records are older, 18% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2017 · 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).
33 family medicine physician records list a practice address in Ukiah
They are 33 of the 1,439 NPPES records with a practice address in Ukiah, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Ukiah → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Thomas Billings, M.D.Ukiah, CA 954821326043852
- Theron Chan, M.D.Ukiah, CA 954821952385833
- Graham Chelius, M.D.Ukiah, CA 954821063459311
- Peter Cho, MDUkiah, CA 954821619968948
- Lynne Coen, M.D.Ukiah, CA 954821851375711
- Howard Coren, M.D.Ukiah, CA 954821730124215
- Helen Hauk, M.D.Ukiah, CA 954821457338394
- Trieneke Kylstra, MDUkiah, CA 954821740243286
Common questions
What is Claire Joanna Hartung, MD's NPI number?
Claire Joanna Hartung, MD's National Provider Identifier (NPI) is 1336679661, issued on Jun 19, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Claire Joanna Hartung, MD located?
The NPPES record lists a practice address at 260 Hospital Dr, Ukiah, CA, 95482. Phone: (707) 463-7495. Providers update this record themselves, so call before visiting.
How can I verify Claire Joanna Hartung, MD's license?
NPPES lists California license number A157215, 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 Claire Joanna Hartung, MD prescribe under Medicare Part D?
In 2024, Claire Joanna Hartung, MD had 206 Medicare Part D claims for 67 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.