John Arthur Donovan, M.D.
Transplant Hepatology Physician · Los Angeles, CA
John Arthur Donovan, M.D. is a transplant hepatology physician with a practice address in Los Angeles, California, and NPI 1164451688, issued on Jun 30, 2006. Check the license (California G55128, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John Arthur Donovan
- Credential
- M.D.
- Primary taxonomy
- Transplant Hepatology Physician 207RT0003X
- License number
- G55128 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1520 San Pablo St, Los Angeles, CA 90033
- Phone
- (323) 442-5100
- Enumerated
- Jun 30, 2006
- Record last updated
- Nov 14, 2020 (not updated in 6 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 1520 San Pablo St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Jamshid Ahmadi, M.D.Neuroradiology Physician1942252028
- Mohammad Akmal, M.D.Nephrology Physician1356378087
Verify John Arthur Donovan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G55128Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average transplant hepatology physician in 2024
366 Medicare Part D claims for 53 beneficiaries, against an average of 669 among the 251 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.
Most prescribed
- Tacrolimus72 claims
- Carvedilol39 claims
- Mycophenolate Mofetil38 claims
- Entecavir25 claims
- Amlodipine Besylate18 claims
- Xifaxan14 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: $57.78
1 payment: food and beverage; the largest payer was Gilead Sciences, Inc. The 193 providers of this specialty with any payment received $10,299.21 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.
Transplant Hepatology Physician providers in California
There are 42 transplant hepatology physician records in California.
Other transplant hepatology physician records in California
- Pranab Barman, MDSan Diego, CA1023301991
- Danielle Brandman, MD, MASSan Francisco, CA1518164540
- Cynthia Cherfane, MDLos Angeles, CA1154619559
- Stewart Cooper, M.D.San Francisco, CA1780604645
- Timothy Davern, MDSan Francisco, CA1699723379
- Renumathy Dhanasekaran, MD, PHDStanford, CA1609008143
- Tse-Ling Fong, M.D.Los Angeles, CA1144230996
- Jin GeSan Francisco, CA1275929077
- Tahereh Ghaziani, MDStanford, CA1871741769
- Julio Gutierrez, MDLos Angeles, CA1801092440
Common questions
What is John Arthur Donovan, M.D.'s NPI number?
John Arthur Donovan, M.D.'s National Provider Identifier (NPI) is 1164451688, issued on Jun 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Arthur Donovan, M.D. located?
The NPPES record lists a practice address at 1520 San Pablo St, Los Angeles, CA, 90033. Phone: (323) 442-5100. Providers update this record themselves, so call before visiting.
How can I verify John Arthur Donovan, M.D.'s license?
NPPES lists California license number G55128, 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 John Arthur Donovan, M.D. prescribe under Medicare Part D?
In 2024, John Arthur Donovan, M.D. had 366 Medicare Part D claims for 53 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.