Thomas J. Chang, D.P.M.
Foot & Ankle Surgery Podiatrist · Santa Rosa, CA
Thomas J. Chang, D.P.M. is a foot & ankle surgery podiatrist with a practice address in Santa Rosa, California, and NPI 1841315736, issued on Mar 20, 2007. Check the license (California E3908, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Thomas J. Chang
- Credential
- D.P.M.
- Primary taxonomy
- Foot & Ankle Surgery Podiatrist 213ES0103X
- License number
- E3908 CA
Self-reported in NPPES; status is on the state search - Practice location
- 208 Concourse Boulevard, Santa Rosa, CA 95403
- Phone
- (707) 544-3400
- Enumerated
- Mar 20, 2007
- Record last updated
- Dec 8, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (707) 544-0137
- Medicare enrollment
- Enrolled (PECOS I20080513000408); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest foot & ankle surgery podiatrist records → All 1,248 in California → Look up another NPI →
Also registered at 208 Concourse Boulevard
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Alexandria Van Zandt, DPTPhysical Therapist1972273712
Verify Thomas J. Chang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license E3908Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4% fewer Medicare Part D claims than the average foot & ankle surgery podiatrist in 2024
320 Medicare Part D claims for 178 beneficiaries, against an average of 335 among the 7,761 providers of this specialty who prescribed in Part D. 144 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen108 claims
- Cephalexin54 claims
- Meloxicam37 claims
- Terbinafine Hcl30 claims
- Tramadol Hcl26 claims
- Gabapentin24 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 62.8 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $117,163.82
72 payments; by number, the most common kind was food and beverage; the largest payer was Paragon 28, Inc. The 6,936 providers of this specialty with any payment received $2,972.24 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.
Bills Medicare through one group practice
- Pnc Msk PCSanta Rosa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Thomas J. Chang among 1,248 foot & ankle surgery podiatrist records in California
Thomas J. Chang, D.P.M. is one of 1,248 foot & ankle surgery podiatrist records with a practice address in California. 86% 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 31% of them.
- NPI issued2007 · 31% of these records are older, 59% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated1990 · median 2010 among the 970 with a school on file
- Record last updated2016 · 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 213ES0103X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Foot & Ankle Surgery Podiatrist providers in California
There are 1,248 foot & ankle surgery podiatrist records in California.
All 1,248 in California → Every provider in Santa Rosa → Foot & Ankle Surgery Podiatrist nationwide →
The 8 foot & ankle surgery podiatrist records with the nearest ZIP codes
- Seth Ashraf, DPMSanta Rosa, CA 954031033739735
- Kristina CorleySanta Rosa, CA 954031457996753
- Walter D'Costa, D.P.M.Santa Rosa, CA 954031548336605
- Kevin Grierson, DPMSanta Rosa, CA 954031154770048
- John Hollander, D.P.M.Santa Rosa, CA 954041104822758
- Deha Karaoglan, DPMSanta Rosa, CA 954041518926252
- Rachel Hoyal, DPMSanta Rosa, CA 954051598991366
- Steven Kim, D.P.M.Santa Rosa, CA 954051306877006
Common questions
What is Thomas J. Chang, D.P.M.'s NPI number?
Thomas J. Chang, D.P.M.'s National Provider Identifier (NPI) is 1841315736, issued on Mar 20, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Thomas J. Chang, D.P.M. located?
The NPPES record lists a practice address at 208 Concourse Boulevard, Santa Rosa, CA, 95403. Phone: (707) 544-3400. Providers update this record themselves, so call before visiting.
How can I verify Thomas J. Chang, D.P.M.'s license?
NPPES lists California license number E3908, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
How much does Thomas J. Chang, D.P.M. prescribe under Medicare Part D?
In 2024, Thomas J. Chang, D.P.M. had 320 Medicare Part D claims for 178 beneficiaries; the average among foot & ankle surgery podiatrist prescribers was 335. Part D covers Medicare prescriptions only.
What is Thomas J. Chang, D.P.M.'s MIPS final score?
The 2023 MIPS final score is 62.8 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.