Thomas J. Blumenfeld, M.D.
Orthopaedic Surgery Physician · Pleasanton, CA
Thomas J. Blumenfeld, M.D. is an orthopaedic surgery physician with a practice address in Pleasanton, California, and NPI 1962479089, issued on Mar 7, 2006. Check the license (California G75858, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thomas J. Blumenfeld
- Credential
- M.D.
- Primary taxonomy
- Orthopaedic Surgery Physician 207X00000X
- License numbers
- G75858 CA
G075858 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5725 W Las Positas Blvd Ste 200, Pleasanton, CA 94588
- Phone
- (925) 272-2860
- Enumerated
- Mar 7, 2006
- Record last updated
- Apr 22, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 00G758580 CA
- Entity
- Type 1 · individual
8 nearest orthopaedic surgery physician records → All 2,276 in California → Look up another NPI →
Verify Thomas J. Blumenfeld in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G75858Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 76.5 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: $7,870.53
3 payments; by number, the most common kind was food and beverage; the largest payer was DePuy Synthes Products, Inc. The 15,003 providers of this specialty with any payment received $23,022.89 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.
Thomas J. Blumenfeld among 2,276 orthopaedic surgery physician records in California
Thomas J. Blumenfeld, M.D. is one of 2,276 orthopaedic surgery physician records with a practice address in California. 74% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 46% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2020 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207X00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Orthopaedic Surgery Physician providers in California
There are 2,276 orthopaedic surgery physician records in California.
All 2,276 in California → Every provider in Pleasanton → Orthopaedic Surgery Physician nationwide →
The 8 orthopaedic surgery physician records with the nearest ZIP codes
- Kambiz Behzadi, MDPleasanton, CA 945881265437396
- Roger Dainer, D.O.Pleasanton, CA 945881427053560
- David Jupina, M.D.Pleasanton, CA 945881033114178
- Robert Malstrom, MDPleasanton, CA 945881073518106
- Kenneth Venos, M.D.Pleasanton, CA 945881154326288
- Mark Charney, MDVallejo, CA 945891265510085
- Dennis Chin, MDVallejo, CA 945891366520264
- Robert Gomez, MDVallejo, CA 945891033129028
Common questions
What is Thomas J. Blumenfeld, M.D.'s NPI number?
Thomas J. Blumenfeld, M.D.'s National Provider Identifier (NPI) is 1962479089, issued on Mar 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Thomas J. Blumenfeld, M.D. located?
The NPPES record lists a practice address at 5725 W Las Positas Blvd Ste 200, Pleasanton, CA, 94588. Phone: (925) 272-2860. Providers update this record themselves, so call before visiting.
How can I verify Thomas J. Blumenfeld, M.D.'s license?
NPPES lists California license number G75858, 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.
What is Thomas J. Blumenfeld, M.D.'s MIPS final score?
The 2023 MIPS final score is 76.5 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.