NPPES file of Aug 9, 2026

Ian A. Stine, M.D.

Sports Medicine (Orthopaedic Surgery) Physician · Pleasanton, CA

Ian A. Stine, M.D. is a sports medicine (orthopaedic surgery) physician with a practice address in Pleasanton, California, and NPI 1154544468, issued on Apr 11, 2007. Check the license (California A89303, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1154544468
Name
Ian A. Stine
Credential
M.D.
Primary taxonomy
Sports Medicine (Orthopaedic Surgery) Physician 207XX0005X
License number
A89303 CA
Self-reported in NPPES; status is on the state search
Practice location
4626 Willow RD, Pleasanton, CA 94588
Phone
(925) 463-0470
Enumerated
Apr 11, 2007
Record last updated
Feb 27, 2025
Fax
(925) 463-0473
Medicare enrollment
Enrolled (PECOS I20071022000866); accepts Medicare assignment
Medical or professional school
Emory University School Of Medicine, 2003
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 4626 Willow RD

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

  1. Apurva Ambekar, PT, DPTOrthopedic Physical Therapist1467957662
  2. Kambiz Behzadi, MDOrthopaedic Surgery Physician1265437396
  3. Alexandra Burgar, M.D.Orthopaedic Hand Surgery Physician1801891932
  4. Ricardo Contreras, P.T.Physical Therapist1679504922
  5. Leslie Desrosiers, D.P.T.Physical Therapist1861634131
  6. Jeffrey Duncan, D.P.T.Physical Therapist1396838165

Verify Ian A. Stine in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A89303
    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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28% fewer Medicare Part D claims than the average sports medicine (orthopaedic surgery) physician in 2024

206 Medicare Part D claims for 93 beneficiaries, against an average of 288 among the 2,562 providers of this specialty who prescribed in Part D. 66 claims were for opioids.

  1. Ian Stine206
  2. Specialty average288

Most prescribed

  1. Meloxicam73 claims
  2. Tramadol Hcl39 claims
  3. Oxycodone-Acetaminophen26 claims
  4. Promethazine Hcl19 claims
  5. Amoxicillin17 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 MIPS final score for 2023 (Medicare payment program): 14.5 of 100

The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costout of 100 · 30%48.2
  3. Promoting interoperabilityout of 100 · 25%0.0
  4. Improvement activities0 of 40 points · 15%0.0

Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $89.20

1 payment: food and beverage; the largest payer was Zimmer Biomet Holdings, Inc. The 2,400 providers of this specialty with any payment received $19,779.31 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Ian Stine$89
  2. Specialty average$19,779

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

  1. Bass Medical GroupAlamo, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Ian A. Stine among 384 sports medicine (orthopaedic surgery) physician records in California

Ian A. Stine, M.D. is one of 384 sports medicine (orthopaedic surgery) physician records with a practice address in California. 88% 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 43% of them.

  • NPI issued2007 · 43% of these records are older, 43% newer
  • In a Medicare fileYes · 88% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2003 · median 2003 among the 293 with a school on file
  • Record last updated2025 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207XX0005X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Sports Medicine (Orthopaedic Surgery) Physician providers in California

There are 384 sports medicine (orthopaedic surgery) physician records in California.

The 8 sports medicine (orthopaedic surgery) physician records with the nearest ZIP codes

  1. David Bell, MDPleasanton, CA 945881619916293
  2. David Gallagher, M.D.Union City, CA 945871760697296
  3. Benjamin Busfield, MDWalnut Creek, CA 945961952459992
  4. Colin Mansfield, M.D.Walnut Creek, CA 945961275812059
  5. Joseph Cheng, M.D.San Leandro, CA 945781871696997
  6. Michael Michlitsch, M.D.Walnut Creek, CA 945981023125259
  7. Charles Preston, M.D.Walnut Creek, CA 945981558529479
  8. Laura Timmerman, M.D.Walnut Creek, CA 945981225052681

Common questions

What is Ian A. Stine, M.D.'s NPI number?

Ian A. Stine, M.D.'s National Provider Identifier (NPI) is 1154544468, issued on Apr 11, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Ian A. Stine, M.D. located?

The NPPES record lists a practice address at 4626 Willow RD, Pleasanton, CA, 94588. Phone: (925) 463-0470. Providers update this record themselves, so call before visiting.

How can I verify Ian A. Stine, M.D.'s license?

NPPES lists California license number A89303, 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 Ian A. Stine, M.D. prescribe under Medicare Part D?

In 2024, Ian A. Stine, M.D. had 206 Medicare Part D claims for 93 beneficiaries; the average among sports medicine (orthopaedic surgery) physician prescribers was 288. Part D covers Medicare prescriptions only.

What is Ian A. Stine, M.D.'s MIPS final score?

The 2023 MIPS final score is 14.5 of 100. 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.