Jack H. Koumjian, DDS
Prosthodontics · Palo Alto, CA
Jack H. Koumjian, DDS is a prosthodontics with a practice address in Palo Alto, California, and NPI 1073629390, issued on Aug 21, 2006. Check the license (California 327301, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Jack H. Koumjian
- Credential
- DDS
- Primary taxonomy
- Prosthodontics 1223P0700X
- License number
- 327301 CA
Self-reported in NPPES; status is on the state search - Practice location
- 770 Welch RD, Palo Alto, CA 94304
- Phone
- (650) 347-3426
- Enumerated
- Aug 21, 2006
- Record last updated
- Dec 20, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (650) 324-0103
- Entity
- Type 1 · individual
8 nearest prosthodontics records → All 474 in California → Look up another NPI →
Also registered at 770 Welch RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shelley Aggarwal, MDPediatric Adolescent Medicine Physician1013029586
- Mary Jane Ajlouny, CNMAdvanced Practice Midwife1629030440
- Anthony BertrandStudent in an Organized Health Care Education/Training Program1700220647
- Ann Brennan, NPPediatric Nurse Practitioner1558419200
- David Cornfield, MDPediatric Pulmonology Physician1598792079
- Stefan Czerniecki, MDPlastic and Reconstructive Surgery Physician1861011736
Verify Jack H. Koumjian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license 327301Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
76% fewer Medicare Part D claims than the average prosthodontics in 2024
22 Medicare Part D claims, against an average of 90 among the 1,779 providers of this specialty who prescribed in Part D.
Most prescribed
- Chlorhexidine Gluconate17 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.
Jack H. Koumjian among 474 prosthodontics records in California
Jack H. Koumjian, DDS is one of 474 prosthodontics records with a practice address in California. 61% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 75% newer
- In a Medicare fileYes · 61% of these records are
- In the CMS Doctors and Clinicians fileNo · 3% of these records are
- Record last updated2007 · 80% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1223P0700X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Prosthodontics providers in California
There are 474 prosthodontics records in California.
All 474 in California → Every provider in Palo Alto → Prosthodontics nationwide →
The 8 prosthodontics records with the nearest ZIP codes
- Andrea Jordan, DDSPalo Alto, CA 943061144661075
- Jung Nam, D.M.D.Palo Alto, CA 943061235367509
- Gary Laine, DDSPalo Alto, CA 943011508029430
- Alison Fishman, DMDSan Mateo, CA 944021528549730
- Samir Nanjapa, DDS, MSSan Mateo, CA 944021558430207
- Richard KinselFoster City, CA 944041164670253
- Rishabh Acharya, BDS, MDSSan Francisco, CA 941431780239954
- Sheila Brear, BDS (DDS)San Francisco, CA 941431326117466
Common questions
What is Jack H. Koumjian, DDS's NPI number?
Jack H. Koumjian, DDS's National Provider Identifier (NPI) is 1073629390, issued on Aug 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Jack H. Koumjian, DDS located?
The NPPES record lists a practice address at 770 Welch RD, Palo Alto, CA, 94304. Phone: (650) 347-3426. Providers update this record themselves, so call before visiting.
How can I verify Jack H. Koumjian, DDS's license?
NPPES lists California license number 327301, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Jack H. Koumjian, DDS prescribe under Medicare Part D?
In 2024, Jack H. Koumjian, DDS had 22 Medicare Part D claims; the average among prosthodontics prescribers was 90. 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.