James A. Carolan, M.D.
Specialist · Vallejo, CA
James A. Carolan, M.D. is a specialist with a practice address in Vallejo, California, and NPI 1316940620, issued on May 31, 2005. Check the license (California A77481, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- James A. Carolan
- Credential
- M.D.
- Primary taxonomy
- Specialist 174400000X
- License number
- A77481 CA
Self-reported in NPPES; status is on the state search - Practice location
- 975 Sereno Dr, Vallejo, CA 94589
- Phone
- (707) 651-1042
- Enumerated
- May 31, 2005
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- GR0015750 CA
- Medicare enrollment
- Enrolled (PECOS I20040623001576); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest specialist records → All 5,749 in California → Look up another NPI →
Also registered at 975 Sereno Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joel Aandahl, NPAdult Health Nurse Practitioner1891423653
- Noman Absar, MDCritical Care Medicine (Internal Medicine) Physician1205908951
- Anthony Acquaviva, MDUrology Physician1457439283
- Jhonnard James Acuna, CRNACertified Registered Nurse Anesthetist1205997327
- Omid AfshariPharmacist1184165391
- Eesha AftabStudent in an Organized Health Care Education/Training Program1770421687
Verify James A. Carolan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license A77481Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% more Medicare Part D claims than the average specialist in 2024
2,631 Medicare Part D claims for 700 beneficiaries, against an average of 1,380 among the 8,233 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.
Most prescribed
- Latanoprost454 claims
- Dorzolamide-Timolol360 claims
- Prednisolone Acetate355 claims
- Diclofenac Sodium276 claims
- Polymyxin B Sul-Trimethoprim237 claims
- Brimonidine Tartrate187 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: $209.31
6 payments; by number, the most common kind was food and beverage; the largest payer was Sight Sciences, Inc. The 5,844 providers of this specialty with any payment received $4,760.79 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.
Bills Medicare through one group practice
- Permanente Medical Group IncVallejo, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James A. Carolan among 5,749 specialist records in California
James A. Carolan, M.D. is one of 5,749 specialist records with a practice address in California. 30% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 30% of these records are
- In the CMS Doctors and Clinicians fileYes · 19% of these records are
- Graduated2000 · median 1989 among the 1,075 with a school on file
- Record last updated2021 · 77% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 174400000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Specialist providers in California
There are 5,749 specialist records in California.
All 5,749 in California → Every provider in Vallejo → Specialist nationwide →
The 8 specialist records with the nearest ZIP codes
- Harrold Dwyer, PH. D., P.T.Vallejo, CA 945891144360793
- Natalie Haffner, DPTVallejo, CA 945891982804027
- Judith Miller-Yamada, MPTVallejo, CA 945891720532633
- Rayneesha BarnesPleasanton, CA 945881821810136
- Robert BrillantesVallejo, CA 945901871655472
- Rotunda BrownPleasanton, CA 945881508678020
- Ray Diaz, CERTIFIED ORTHOTISTPleasanton, CA 945881245655588
- Darren HighVallejo, CA 945901538220173
Common questions
What is James A. Carolan, M.D.'s NPI number?
James A. Carolan, M.D.'s National Provider Identifier (NPI) is 1316940620, issued on May 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James A. Carolan, M.D. located?
The NPPES record lists a practice address at 975 Sereno Dr, Vallejo, CA, 94589. Phone: (707) 651-1042. Providers update this record themselves, so call before visiting.
How can I verify James A. Carolan, M.D.'s license?
NPPES lists California license number A77481, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does James A. Carolan, M.D. prescribe under Medicare Part D?
In 2024, James A. Carolan, M.D. had 2,631 Medicare Part D claims for 700 beneficiaries; the average among specialist prescribers was 1,380. 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.