NPPES file of Aug 9, 2026

Thomas Mark Hartley, M.D.

Orthopaedic Surgery Physician · Riverside, CA

Thomas Mark Hartley, M.D. is an orthopaedic surgery physician with a practice address in Riverside, California, and NPI 1164407391, issued on Dec 9, 2005. Check the license (California G89301, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1164407391
Name
Thomas Mark Hartley
Credential
M.D.
Primary taxonomy
Orthopaedic Surgery Physician 207X00000X
License numbers
G89301 CA
100628 MO
Self-reported in NPPES; status is on the state search
Practice location
4444 Magnolia Ave, Riverside, CA 92501
Phone
(951) 682-5661
Enumerated
Dec 9, 2005
Record last updated
Jul 13, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(951) 686-3758
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 4444 Magnolia Ave

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

  1. James Clover, MED, ATC, PTAAthletic Trainer1275508400
  2. Brent Harper, DPT, OCS, CSCSSports Physical Therapist1902024169
  3. Brian Hild, MDOrthopaedic Surgery Physician1013952001
  4. Danica Macias, DPTPhysical Medicine & Rehabilitation Physician1710131750
  5. Thomas Pham, D.O., CAQSMSports Medicine (Family Medicine) Physician1942497193
  6. Kim Samosky, MPT, OCS, ATCSports Physical Therapist1639394414

Verify Thomas Mark Hartley in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G89301
    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

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Orthopaedic Surgery Physician providers in California

There are 2,276 orthopaedic surgery physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other orthopaedic surgery physician records in California

  1. Karim Abdollahi, M.D.Laguna Beach, CA1942240403
  2. Michael Abdulian, MDGlendale, CA1649469628
  3. Hussein Abdulrassoul, MDRiverside, CA1972123891
  4. Douglas Abeles, MDCastro Valley, CA1508961582
  5. Anthony Abene, MDSan Jose, CA1457437964
  6. Torgom Abraamyan, M.D.Van Nuys, CA1013370410
  7. Monther AbuhantashSan Francisco, CA1447041512
  8. Joshua Acebo, MDPalo Alto, CA1396373734
  9. Daniel Acevedo, M.D.Thousand Oaks, CA1184856122
  10. John Adams, MDLos Angeles, CA1215914114

Common questions

What is Thomas Mark Hartley, M.D.'s NPI number?

Thomas Mark Hartley, M.D.'s National Provider Identifier (NPI) is 1164407391, issued on Dec 9, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Mark Hartley, M.D. located?

The NPPES record lists a practice address at 4444 Magnolia Ave, Riverside, CA, 92501. Phone: (951) 682-5661. Providers update this record themselves, so call before visiting.

How can I verify Thomas Mark Hartley, M.D.'s license?

NPPES lists California license number G89301, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.