Mark D. Ho, MD
Internal Medicine Physician · Davis, CA
Mark D. Ho, MD is an internal medicine physician with a practice address in Davis, California, and NPI 1275611964, issued on Nov 1, 2006. Check the license (California A68939, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark D. Ho
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A68939 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1955 Cowell Blvd, Davis, CA 95618
- Phone
- (916) 757-7100
- Enumerated
- Nov 1, 2006
- Record last updated
- Dec 6, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A689390 CA
- Medicare enrollment
- Enrolled (PECOS I20110214000028); accepts Medicare assignment
- Medical or professional school
- Eastern Virginia Medical School, 1997
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1955 Cowell Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- James Buck, RPHPharmacist1376077628
- Allison Buss, MDPediatrics Physician1699119032
- Michelle Chang-Cheng, MDInternal Medicine Physician1689746406
Verify Mark D. Ho in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A68939Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% more Medicare Part D claims than the average internal medicine physician in 2024
6,151 Medicare Part D claims for 480 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 223 claims were for opioids.
Most prescribed
- Atorvastatin Calcium412 claims
- Levothyroxine Sodium249 claims
- Lisinopril237 claims
- Amlodipine Besylate234 claims
- Losartan Potassium223 claims
- Hydrocodone-Acetaminophen158 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 one group practice
- Permanente Medical Group IncStockton, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark D. Ho among 17,696 internal medicine physician records in California
Mark D. Ho, MD 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 fileYes · 63% of these records are
- Graduated1997 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 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).
33 internal medicine physician records list a practice address in Davis
They are 33 of the 1,711 NPPES records with a practice address in Davis, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Davis → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Mahfuja Akanda, MDDavis, CA 956181528118346
- Michelle Chang-Cheng, MDDavis, CA 956181689746406
- Diane Dailey, MDDavis, CA 956181689753725
- Catherine Dycaico, M.D.Davis, CA 956181578749396
- Prabhu Shankar, MD, MSEl Macero, CA 956181629928858
- Jeanine Ellinwood, M.DDiamond Springs, CA 956191790782902
- Elisabeth AbdinDavis, CA 956161124391941
- Ramnik Bhogal, MDDavis, CA 956161326627589
Common questions
What is Mark D. Ho, MD's NPI number?
Mark D. Ho, MD's National Provider Identifier (NPI) is 1275611964, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark D. Ho, MD located?
The NPPES record lists a practice address at 1955 Cowell Blvd, Davis, CA, 95618. Phone: (916) 757-7100. Providers update this record themselves, so call before visiting.
How can I verify Mark D. Ho, MD's license?
NPPES lists California license number A68939, 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 D. Ho, MD prescribe under Medicare Part D?
In 2024, Mark D. Ho, MD had 6,151 Medicare Part D claims for 480 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.