NPPES file of Aug 9, 2026

Mark Wilbur Davenport, M.D.

Internal Medicine Physician · Turlock, CA

Mark Wilbur Davenport, M.D. is an internal medicine physician with a practice address in Turlock, California, and NPI 1831129493, issued on Jul 3, 2006. Check the license (California G-31689, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1831129493
Name
Mark Wilbur Davenport
Credential
M.D.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
G-31689 CA
Self-reported in NPPES; status is on the state search
Practice location
920 Delbon Ave, Turlock, CA 95382
Phone
(209) 634-7283
Enumerated
Jul 3, 2006
Record last updated
Jul 20, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(209) 634-9167
Medicaid ID
00G316892 CA
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 920 Delbon Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ronald Arakelian, M.D.Internal Medicine Physician1770514515
  2. Edward Holm, M.D.Internal Medicine Physician1891729265
  3. Jennifer Leoniak, D.O., M.S.Infectious Disease Physician1588808703

Verify Mark Wilbur Davenport in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G-31689
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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99% fewer Medicare Part D claims than the average internal medicine physician in 2024

31 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 77% of claims.

  1. Mark Davenport31
  2. Specialty average3,176

Most prescribed

  1. Levothyroxine Sodium24 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.

Mark Wilbur Davenport among 17,696 internal medicine physician records in California

Mark Wilbur Davenport, 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 updated2011 · 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).

21 internal medicine physician records list a practice address in Turlock

They are 21 of the 1,343 NPPES records with a practice address in Turlock, and 17,696 internal medicine physician records in California.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Ronald Arakelian, M.D.Turlock, CA 953821770514515
  2. Gurbir Atwal, MDTurlock, CA 953821790737617
  3. Inderpal Bal, MDTurlock, CA 953821265486815
  4. Ishtleen Bhatia, M.D.Turlock, CA 953821851649396
  5. Andrew Deen, MDTurlock, CA 953821225073000
  6. Patrick Gamp, M.D.Turlock, CA 953821548245582
  7. Edward Holm, M.D.Turlock, CA 953821891729265
  8. Kian Kaveh, D.O.Turlock, CA 953821053451328

Common questions

What is Mark Wilbur Davenport, M.D.'s NPI number?

Mark Wilbur Davenport, M.D.'s National Provider Identifier (NPI) is 1831129493, issued on Jul 3, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark Wilbur Davenport, M.D. located?

The NPPES record lists a practice address at 920 Delbon Ave, Turlock, CA, 95382. Phone: (209) 634-7283. Providers update this record themselves, so call before visiting.

How can I verify Mark Wilbur Davenport, M.D.'s license?

NPPES lists California license number G-31689, 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 Wilbur Davenport, M.D. prescribe under Medicare Part D?

In 2024, Mark Wilbur Davenport, M.D. had 31 Medicare Part D claims; 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.