David A. Ham, M.D.
Family Medicine Physician · Vista, CA
David A. Ham, M.D. is a family medicine physician with a practice address in Vista, California, and NPI 1952515959, issued on May 9, 2007. Check the license (California A94899, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David A. Ham
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- A94899 CA
Self-reported in NPPES; status is on the state search - Practice location
- 130 Cedar RD, Vista, CA 92083
- Phone
- (760) 806-5400
- Enumerated
- May 9, 2007
- Record last updated
- Mar 24, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (760) 806-5555
- Medicaid ID
- 00A948990 CA
- Medicare enrollment
- Enrolled (PECOS I20070604000185); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 2000
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 130 Cedar RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Aberle, RN, CDEDiabetes Educator Registered Nurse1962725218
- Hala Amr, MDFamily Medicine Physician1891700258
- Irving Bloom, M.D.Geriatric Medicine (Internal Medicine) Physician1679664502
- Sophia Bradley, D.O.Family Medicine Physician1073952362
- Abigail Brantl, PTPhysical Therapist1821241639
- Larry Butler, PAPhysician Assistant1073138103
Verify David A. Ham in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A94899Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average family medicine physician in 2024
403 Medicare Part D claims for 258 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 42 claims were for opioids.
Most prescribed
- Cephalexin47 claims
- Methylprednisolone45 claims
- Albuterol Sulfate Hfa32 claims
- Hydrocodone-Acetaminophen32 claims
- Azithromycin28 claims
- Prednisone24 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.
Bills Medicare through 2 group practices
- Scripps HealthVista, CA
- United Medical DoctorsMurrieta, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David A. Ham among 17,133 family medicine physician records in California
David A. Ham, M.D. 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 2007, is newer than 41% of them.
- NPI issued2007 · 41% of these records are older, 47% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2000 · median 2005 among the 10,652 with a school on file
- Record last updated2020 · 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).
75 family medicine physician records list a practice address in Vista
They are 75 of the 2,017 NPPES records with a practice address in Vista, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Vista → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Hala Amr, MDVista, CA 920831891700258
- Joseph Castrejon, MDVista, CA 920831568486710
- Deryien Chen, MDVista, CA 920831902820103
- Jonathan Haynes, MDVista, CA 920831255397063
- Louis Hogrefe, MDVista, CA 920831841205218
- Melissa Hurd, M.D.Vista, CA 920831487643698
- Ken Iwaoka, MDVista, CA 920831346263670
- Amad Kadry, M.D.Vista, CA 920831396855235
Common questions
What is David A. Ham, M.D.'s NPI number?
David A. Ham, M.D.'s National Provider Identifier (NPI) is 1952515959, issued on May 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is David A. Ham, M.D. located?
The NPPES record lists a practice address at 130 Cedar RD, Vista, CA, 92083. Phone: (760) 806-5400. Providers update this record themselves, so call before visiting.
How can I verify David A. Ham, M.D.'s license?
NPPES lists California license number A94899, 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 David A. Ham, M.D. prescribe under Medicare Part D?
In 2024, David A. Ham, M.D. had 403 Medicare Part D claims for 258 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.