Yolanda Marcos, MD
Internal Medicine Physician · San Antonio, TX
Yolanda Marcos, MD is an internal medicine physician with a practice address in San Antonio, Texas, and NPI 1104845445, issued on Jul 18, 2006. Check the license (Texas K3612, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Yolanda Marcos
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- K3612 TX
Self-reported in NPPES; status is on the state search - Practice location
- 510 Med Court, San Antonio, TX 78258
- Phone
- (210) 494-4290
- Enumerated
- Jul 18, 2006
- Record last updated
- Apr 14, 2022
- Fax
- (210) 494-4809
- Medicaid IDs
- 031448601 TX
031448602 TX - Medicare enrollment
- Enrolled (PECOS I20070519000058); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At San Antonio, 1996
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 510 Med Court
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tina Grau, D.C.Chiropractor1780784322
Verify Yolanda Marcos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license K3612Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Most of these Medicare Part D claims are vaccines, 85% of the cost of the top drugs
9,601 Medicare Part D claims for 981 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims. 226 claims were for opioids.
Most prescribed
Pharmacies often give vaccines under a standing order that names one clinician, and CMS counts every such claim under that clinician's NPI. These claims are therefore not a measure of this clinician's own prescribing.
- Atorvastatin Calcium510 claims
- Rosuvastatin Calcium430 claims
- Amlodipine Besylate387 claims
- Arexvy341 claims
- Levothyroxine Sodium298 claims
- Lisinopril270 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.
Industry payments in 2024: $1,498.87
87 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 50,334 providers of this specialty with any payment received $1,303.06 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.
Bills Medicare through one group practice
- Yolanda Marcos MD PASan Antonio, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Yolanda Marcos among 9,175 internal medicine physician records in Texas
Yolanda Marcos, MD 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1996 · median 2004 among the 6,088 with a school on file
- Record last updated2022 · 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.
All 9,175 in Texas → Every provider in San Antonio → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- William Atlas, M.D.San Antonio, TX 782581902881535
- Vernon Benson, M.D.San Antonio, TX 782581487638011
- David Bird, M.D.San Antonio, TX 782581346468246
- John Dickson, M.D.San Antonio, TX 782581154467116
- George Ford III, M.D.F.A.C.P.San Antonio, TX 782581841275443
- Timothy Hernandez, MDSan Antonio, TX 782581851495584
- Kevin Horton, M.D.San Antonio, TX 782581710962972
- Scott McGlynn, D.O.San Antonio, TX 782581770579187
Common questions
What is Yolanda Marcos, MD's NPI number?
Yolanda Marcos, MD's National Provider Identifier (NPI) is 1104845445, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Yolanda Marcos, MD located?
The NPPES record lists a practice address at 510 Med Court, San Antonio, TX, 78258. Phone: (210) 494-4290. Providers update this record themselves, so call before visiting.
How can I verify Yolanda Marcos, MD's license?
NPPES lists Texas license number K3612, 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 Yolanda Marcos, MD prescribe under Medicare Part D?
In 2024, Yolanda Marcos, MD had 9,601 Medicare Part D claims for 981 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.