NPPES file of Aug 9, 2026

Alexander J. Chen, MD

Interventional Pain Medicine Physician · San Antonio, TX

Alexander J. Chen, MD is an interventional pain medicine physician with a practice address in San Antonio, Texas, and NPI 1750543476, issued on Jun 25, 2008. Check the license (Texas S3137, as entered in NPPES) on the Texas Medical Board; 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
1750543476
Name
Alexander J. Chen
Credential
MD
Primary taxonomy
Interventional Pain Medicine Physician 208VP0014X
License numbers
S3137 TX
MD445800 PA
Self-reported in NPPES; status is on the state search
Practice location
3415 Paesanos Pkwy Ste 100, San Antonio, TX 78231
Phone
(210) 600-9766
Enumerated
Jun 25, 2008
Record last updated
Feb 23, 2023
Medicare enrollment
Enrolled (PECOS I20191008002405); accepts Medicare assignment
Medical or professional school
Tufts University School Of Medicine, 2007
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 3415 Paesanos Pkwy Ste 100

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

  1. Belen Adlawan, APRN,FNP-CFamily Nurse Practitioner1093479107
  2. Leslie Garcia, FNPFamily Nurse Practitioner1780340786
  3. Brandon MagallanezFamily Nurse Practitioner1679044259
  4. Luis Martinez, MSN, FNP-BC, FNP- CFamily Nurse Practitioner1831015478
  5. Christopher Reeves, FNPFamily Nurse Practitioner1396293114
  6. Sameer Soliman, M.D.Interventional Pain Medicine Physician1669762191

Verify Alexander J. Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license S3137
    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 Texas 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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63% fewer Medicare Part D claims than the average interventional pain medicine physician in 2024

848 Medicare Part D claims for 260 beneficiaries, against an average of 2,306 among the 2,100 providers of this specialty who prescribed in Part D. Brand-name drugs were 3% of claims. 138 claims were for opioids.

  1. Alexander Chen848
  2. Specialty average2,306

Most prescribed

  1. Pregabalin191 claims
  2. Gabapentin166 claims
  3. Lorazepam121 claims
  4. Hydrocodone-Acetaminophen54 claims
  5. Baclofen51 claims
  6. Methocarbamol39 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): 82 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.

  1. Qualityout of 100 · 30% of the final score72.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilityout of 100 · 25%91.0
  4. Improvement activities40 of 40 points · 15%100.0

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

Industry payments in 2024: $1,520.39

13 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 1,966 providers of this specialty with any payment received $3,889.53 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alexander Chen$1,520.39
  2. Specialty average$3,889.53

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. University OF Texas Health Science Center AT San AntonioSan Antonio, TX

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

Alexander J. Chen among 301 interventional pain medicine physician records in Texas

Alexander J. Chen, MD is one of 301 interventional pain medicine physician records with a practice address in Texas. 91% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 55% of them.

  • NPI issued2008 · 55% of these records are older, 38% newer
  • In a Medicare fileYes · 91% of these records are
  • In the CMS Doctors and Clinicians fileYes · 83% of these records are
  • Graduated2007 · median 2004 among the 250 with a school on file
  • Record last updated2023 · 36% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208VP0014X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Interventional Pain Medicine Physician providers in Texas

There are 301 interventional pain medicine physician records in Texas.

The 8 interventional pain medicine physician records with the nearest ZIP codes

  1. Sameer Soliman, M.D.San Antonio, TX 782311669762191
  2. Brian Starr, M.D.San Antonio, TX 782311104086859
  3. Charles Murphy, M.D.San Antonio, TX 782321639178908
  4. Dmitriy Buyanov, M.D.San Antonio, TX 782291124047261
  5. Jacob Erickson, M.D.San Antonio, TX 782291013352913
  6. Akinoluwa Oluwatomi, MDSan Antonio, TX 782291831320035
  7. Tommy Pham, MDSan Antonio, TX 782291184207938
  8. William Robbins, D.O.San Antonio, TX 782291659489243

Common questions

What is Alexander J. Chen, MD's NPI number?

Alexander J. Chen, MD's National Provider Identifier (NPI) is 1750543476, issued on Jun 25, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Alexander J. Chen, MD located?

The NPPES record lists a practice address at 3415 Paesanos Pkwy Ste 100, San Antonio, TX, 78231. Phone: (210) 600-9766. Providers update this record themselves, so call before visiting.

How can I verify Alexander J. Chen, MD's license?

NPPES lists Texas license number S3137, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Alexander J. Chen, MD prescribe under Medicare Part D?

In 2024, Alexander J. Chen, MD had 848 Medicare Part D claims for 260 beneficiaries; the average among interventional pain medicine physician prescribers was 2,306. Part D covers Medicare prescriptions only.

What is Alexander J. Chen, MD's MIPS final score?

The 2023 MIPS final score is 82 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.