Alfonso Guzman, M.D.
Family Medicine Physician · San Antonio, TX
Alfonso Guzman, M.D. is a family medicine physician with a practice address in San Antonio, Texas, and NPI 1336467588, issued on May 12, 2010. Check the license (Texas P6627, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Alfonso Guzman
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- P6627 TX
Self-reported in NPPES; status is on the state search - Practice location
- 903 W Martin St, San Antonio, TX 78207
- Phone
- (210) 358-9658
- Enumerated
- May 12, 2010
- Record last updated
- Oct 8, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (210) 358-5940
- Medicare enrollment
- Enrolled (PECOS I20130911000580); accepts Medicare assignment
- Medical or professional school
- Texas Tech University Health Science Center School Of Medicine, 2010
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 11,119 in Texas → Look up another NPI →
Also registered at 903 W Martin St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rana AbdelwahabStudent in an Organized Health Care Education/Training Program1194668525
- Sandra Adams, MDPulmonary Disease Physician1669483186
- Leticia Aguilar, MDFamily Medicine Physician1760451009
- Zuha AlamStudent in an Organized Health Care Education/Training Program1932995669
- Samantha Alvarado, MDObstetrics Physician1932894862
- Daniel Amram, MDStudent in an Organized Health Care Education/Training Program1265236822
Verify Alfonso Guzman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license P6627Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family medicine physician in 2024
117 Medicare Part D claims for 73 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Prednisone14 claims
- Albuterol Sulfate Hfa11 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
- Methodist Carenow Urgent Care PLLCSan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alfonso Guzman among 11,119 family medicine physician records in Texas
Alfonso Guzman, M.D. is one of 11,119 family 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 2010, is newer than 62% of them.
- NPI issued2010 · 62% of these records are older, 36% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated2010 · median 2004 among the 7,095 with a school on file
- Record last updated2013 · 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 207Q00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
809 family medicine physician records list a practice address in San Antonio
They are 809 of the 37,749 NPPES records with a practice address in San Antonio, and 11,119 family medicine physician records in Texas.
All 11,119 in Texas → Every provider in San Antonio → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Leticia Aguilar, MDSan Antonio, TX 782071760451009
- Michael Blanchett, M.D.San Antonio, TX 782071861479602
- Linda Hearne, MDSan Antonio, TX 782071801800966
- David Katerndahl, MDSan Antonio, TX 782071285741355
- Kenyatta Lee, MDSan Antonio, TX 782071588633630
- Rafael Martinez, M.D.San Antonio, TX 782071942217278
- Michael Mohr, D.O.San Antonio, TX 782071700883170
- Cordelia Moscrip, MDSan Antonio, TX 782071588632046
Common questions
What is Alfonso Guzman, M.D.'s NPI number?
Alfonso Guzman, M.D.'s National Provider Identifier (NPI) is 1336467588, issued on May 12, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Alfonso Guzman, M.D. located?
The NPPES record lists a practice address at 903 W Martin St, San Antonio, TX, 78207. Phone: (210) 358-9658. Providers update this record themselves, so call before visiting.
How can I verify Alfonso Guzman, M.D.'s license?
NPPES lists Texas license number P6627, 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 Alfonso Guzman, M.D. prescribe under Medicare Part D?
In 2024, Alfonso Guzman, M.D. had 117 Medicare Part D claims for 73 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.