NPPES file of Aug 9, 2026

Mangala Nayak

Internal Medicine Physician · San Antonio, TX

Mangala Nayak is an internal medicine physician with a practice address in San Antonio, Texas, and NPI 1801449632, issued on Jul 21, 2019. Check the license (Texas U8558, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1801449632
Name
Mangala Nayak
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
U8558 TX
Self-reported in NPPES; status is on the state search
Practice location
5282 Medical Dr Ste 250, San Antonio, TX 78229
Phone
(210) 358-8820
Enumerated
Jul 21, 2019
Record last updated
Jan 8, 2024
Medicare enrollment
Enrolled (PECOS I20240124003490); accepts Medicare assignment
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 5282 Medical Dr Ste 250

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

  1. Cassandra DearthFamily Nurse Practitioner1982199485
  2. Julissa Flores, PA-CMedical Physician Assistant1154619112
  3. Marianne Kristine PadolinaFamily Medicine Physician1245974526
  4. Shelby Perkins, PA-CPhysician Assistant1619479953
  5. Elena Pogosian, MDFamily Medicine Physician1962687905
  6. Kathryn Silva, DNP, APRN, FNP-CFamily Nurse Practitioner1134985484

Verify Mangala Nayak in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license U8558
    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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58% fewer Medicare Part D claims than the average internal medicine physician in 2024

1,320 Medicare Part D claims for 272 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 47 claims were for opioids.

  1. Mangala Nayak1,320
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium58 claims
  2. Hydrochlorothiazide39 claims
  3. Lisinopril39 claims
  4. Amlodipine Besylate35 claims
  5. Fluticasone Propionate32 claims
  6. Gabapentin32 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.

Bills Medicare through one group practice

  1. Community Medicine AssociatesSan Antonio, TX

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

Mangala Nayak among 9,175 internal medicine physician records in Texas

Mangala Nayak is one of 9,175 internal medicine physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 82% of them.

  • NPI issued2019 · 82% of these records are older, 15% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 66% of these records are
  • Graduated2018 · median 2004 among the 6,088 with a school on file
  • Record last updated2024 · 49% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

657 internal medicine physician records list a practice address in San Antonio

They are 657 of the 37,749 NPPES records with a practice address in San Antonio, and 9,175 internal medicine physician records in Texas.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Jeremias Abueme, M.D.San Antonio, TX 782291891790960
  2. Richard Clemons, MDSan Antonio, TX 782291740282664
  3. Serina Flores, M.D.San Antonio, TX 782291528058203
  4. John Galan, MDSan Antonio, TX 782291528069440
  5. Juan Gonzalez, MDSan Antonio, TX 782291659370963
  6. Bradley Kayser, MDSan Antonio, TX 782291285635110
  7. Michelle Medellin, M.D.San Antonio, TX 782291770571614
  8. Thomas Mieras, MDSan Antonio, TX 782291578564787

Common questions

What is Mangala Nayak's NPI number?

Mangala Nayak's National Provider Identifier (NPI) is 1801449632, issued on Jul 21, 2019. An NPI identifies a provider in billing; it is not a license.

Where is Mangala Nayak located?

The NPPES record lists a practice address at 5282 Medical Dr Ste 250, San Antonio, TX, 78229. Phone: (210) 358-8820. Providers update this record themselves, so call before visiting.

How can I verify Mangala Nayak's license?

NPPES lists Texas license number U8558, 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 Mangala Nayak prescribe under Medicare Part D?

In 2024, Mangala Nayak had 1,320 Medicare Part D claims for 272 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.

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.