Mark Hamilton Henigan, D.O.
Psychiatry Physician · Modesto, CA
Mark Hamilton Henigan, D.O. is a psychiatry physician with a practice address in Modesto, California, and NPI 1689897365, issued on Apr 11, 2007. Check the license (California 20A6351, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Hamilton Henigan
- Credential
- D.O.
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 20A6351 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1729 Tully RD, Modesto, CA 95350
- Phone
- (209) 544-8363
- Enumerated
- Apr 11, 2007
- Record last updated
- Jul 21, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (209) 758-0995
- Medicaid ID
- 9519325 CA
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 8,673 in California → Look up another NPI →
Also registered at 1729 Tully RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Evelyn Schaffer, M.F.T.Marriage & Family Therapist1891974952
- Judith Sheppard, M.S.Marriage & Family Therapist1649480302
- Peter Sheppard, M.S.Marriage & Family Therapist1285844944
Verify Mark Hamilton Henigan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A6351Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% more Medicare Part D claims than the average psychiatry physician in 2024
1,827 Medicare Part D claims for 68 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Alprazolam139 claims
- Dextroamphetamine-Amphetamine136 claims
- Bupropion Xl105 claims
- Lamotrigine98 claims
- Quetiapine Fumarate93 claims
- Desvenlafaxine Succinate Er79 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: $1,211.09
50 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 13,693 providers of this specialty with any payment received $4,954.93 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.
Mark Hamilton Henigan among 8,673 psychiatry physician records in California
Mark Hamilton Henigan, D.O. is one of 8,673 psychiatry physician records with a practice address in California. 67% 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 33% of them.
- NPI issued2007 · 33% of these records are older, 48% newer
- In a Medicare fileYes · 67% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2008 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in California
There are 8,673 psychiatry physician records in California.
All 8,673 in California → Every provider in Modesto → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Manuel Chua, M.D.Modesto, CA 953501225111719
- Shannon Easton-Carr, MDModesto, CA 953501508091711
- Nataliya Giagou, M.D.Modesto, CA 953501285854216
- Syeda Razia Haider, MDModesto, CA 953501760044713
- Elmer Ignacio, M.D.Modesto, CA 953501578507604
- Rashid Jahangiri, M.D.Modesto, CA 953501689712499
- Ashok Rao, M.D.Modesto, CA 953501982773354
- Kairav Shah, MDModesto, CA 953501053660886
Common questions
What is Mark Hamilton Henigan, D.O.'s NPI number?
Mark Hamilton Henigan, D.O.'s National Provider Identifier (NPI) is 1689897365, issued on Apr 11, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mark Hamilton Henigan, D.O. located?
The NPPES record lists a practice address at 1729 Tully RD, Modesto, CA, 95350. Phone: (209) 544-8363. Providers update this record themselves, so call before visiting.
How can I verify Mark Hamilton Henigan, D.O.'s license?
NPPES lists California license number 20A6351, 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 Mark Hamilton Henigan, D.O. prescribe under Medicare Part D?
In 2024, Mark Hamilton Henigan, D.O. had 1,827 Medicare Part D claims for 68 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.