John A. Ambrose, MD
Cardiovascular Disease Physician · Fresno, CA
John A. Ambrose, MD is a cardiovascular disease physician with a practice address in Fresno, California, and NPI 1598795429, issued on Jul 4, 2006. Check the license (California G87536, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- John A. Ambrose
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- G87536 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2335 E Kashian LN Ste 240, Fresno, CA 93701
- Phone
- (559) 320-0545
- Enumerated
- Jul 4, 2006
- Record last updated
- Dec 23, 2024
- Fax
- (559) 320-0550
- Medicaid ID
- OOG875360 CA
- Medicare enrollment
- Enrolled (PECOS I20051006000223); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 2335 E Kashian LN Ste 240
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Manminder Bhullar, MDInterventional Cardiology Physician1295039360
- Ricardo Chia Li, MDAdvanced Heart Failure and Transplant Cardiology Physician1285021907
- Teresa Daniele, M.D.Nuclear Cardiology Physician1497791693
- Flora David, NPNurse Practitioner1497990246
- Theresa DwyerMedical Physician Assistant1982187100
- Zaher Fanari, M.D.Interventional Cardiology Physician1427384221
Verify John A. Ambrose in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G87536Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
1,168 Medicare Part D claims for 214 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.
Most prescribed
- Atorvastatin Calcium131 claims
- Rosuvastatin Calcium112 claims
- Metoprolol Succinate84 claims
- Furosemide63 claims
- Spironolactone59 claims
- Hydrochlorothiazide58 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: $78.18
4 payments; by number, the most common kind was food and beverage; the largest payer was Amgen Inc. The 16,686 providers of this specialty with any payment received $3,819.56 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 2 group practices
- Central California Faculty Medical Group IncFresno, CA
- Fresno Community Hospital And Medical CenterFresno, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John A. Ambrose among 2,574 cardiovascular disease physician records in California
John A. Ambrose, MD is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 45% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1972 · median 1999 among the 1,742 with a school on file
- Record last updated2024 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in Fresno → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Sarkis Baghdasarian, M.D.Fresno, CA 937011265563241
- Wilbur JiFresno, CA 937011588292452
- Chandra Katikireddy, M.D.Fresno, CA 937011649318023
- Bhavik Khatri, D.O.Fresno, CA 937011457643298
- Philip Kingsford, MDFresno, CA 937011306306618
- Duong Le, M.D.Fresno, CA 937011497191738
- Damon McEnroe, MDFresno, CA 937011487183638
- Henning Rasmussen, MDFresno, CA 937011487649943
Common questions
What is John A. Ambrose, MD's NPI number?
John A. Ambrose, MD's National Provider Identifier (NPI) is 1598795429, issued on Jul 4, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John A. Ambrose, MD located?
The NPPES record lists a practice address at 2335 E Kashian LN Ste 240, Fresno, CA, 93701. Phone: (559) 320-0545. Providers update this record themselves, so call before visiting.
How can I verify John A. Ambrose, MD's license?
NPPES lists California license number G87536, 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 A. Ambrose, MD prescribe under Medicare Part D?
In 2024, John A. Ambrose, MD had 1,168 Medicare Part D claims for 214 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.