Levon Tchakmakjian, M.D.
Internal Medicine Physician · Fairfield, CA
Levon Tchakmakjian, M.D. is an internal medicine physician with a practice address in Fairfield, California, and NPI 1790744795, issued on Mar 20, 2006. Check the license (California 144411, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Levon Tchakmakjian
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 144411 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2458 Hilborn RD, Fairfield, CA 94534
- Phone
- (707) 646-5500
- Enumerated
- Mar 20, 2006
- Record last updated
- Jan 17, 2017 (not updated in 9 years: call before relying on the address or phone)
- Fax
- (707) 646-5501
- Medicaid ID
- 001430496 CT
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 2458 Hilborn RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sarah Digeorge, NPAcute Care Nurse Practitioner1598443897
- Kalsang Dorji, DNP, FNP-BCFamily Nurse Practitioner1861056640
- Judith Flandez, PA-CPhysician Assistant1316482250
Verify Levon Tchakmakjian in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 144411Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
65% more Medicare Part D claims than the average internal medicine physician in 2024
5,250 Medicare Part D claims for 116 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 12 claims were for opioids.
Most prescribed
- Atorvastatin Calcium365 claims
- Amlodipine Besylate267 claims
- Levothyroxine Sodium203 claims
- Losartan Potassium181 claims
- Gabapentin159 claims
- Metformin Hcl146 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.
Levon Tchakmakjian among 17,696 internal medicine physician records in California
Levon Tchakmakjian, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% 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 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2017 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
54 internal medicine physician records list a practice address in Fairfield
They are 54 of the 3,595 NPPES records with a practice address in Fairfield, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Fairfield → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Amanda Adkins, M.D.Fairfield, CA 945341568635704
- Josefina Arenas, M.DFairfield, CA 945341518926484
- Clarisse Cadang, M.D.Fairfield, CA 945341588083075
- Larissa Chartrand, M.D.Fairfield, CA 945341851715627
- Gurpreet Dhugga, MDFairfield, CA 945341356429161
- Richard Fleming, M.D.Fairfield, CA 945341831277722
- Andrew Glickstein, M.D.Fairfield, CA 945341891231825
- Ella Gupta, D.OFairfield, CA 945341811157126
Common questions
What is Levon Tchakmakjian, M.D.'s NPI number?
Levon Tchakmakjian, M.D.'s National Provider Identifier (NPI) is 1790744795, issued on Mar 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Levon Tchakmakjian, M.D. located?
The NPPES record lists a practice address at 2458 Hilborn RD, Fairfield, CA, 94534. Phone: (707) 646-5500. Providers update this record themselves, so call before visiting.
How can I verify Levon Tchakmakjian, M.D.'s license?
NPPES lists California license number 144411, 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 Levon Tchakmakjian, M.D. prescribe under Medicare Part D?
In 2024, Levon Tchakmakjian, M.D. had 5,250 Medicare Part D claims for 116 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.