NPPES file of Aug 9, 2026

Marissa N. Largoza, MD

Obstetrics & Gynecology Physician · San Antonio, TX

Marissa N. Largoza, MD is an obstetrics & gynecology physician with a practice address in San Antonio, Texas, and NPI 1720183312, issued on Sep 14, 2006. Check the license (Texas L0366, 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
1720183312
Name
Marissa N. Largoza
Credential
MD
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License number
L0366 TX
Self-reported in NPPES; status is on the state search
Practice location
4499 Medical Drive, San Antonio, TX 78229
Phone
(210) 692-0404
Enumerated
Sep 14, 2006
Record last updated
May 10, 2022
Fax
(210) 692-9202
Medicaid ID
140805601 TX
Medicare enrollment
Enrolled (PECOS I20120131000055); may accept Medicare assignment
Medical or professional school
Jefferson Medical College Of Thomas Jefferson University, 1994
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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8 nearest obstetrics & gynecology physician records → All 3,524 in Texas → Look up another NPI →

Also registered at 4499 Medical Drive

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

  1. Yara AlhaddadeinStudent in an Organized Health Care Education/Training Program1407776842
  2. Yazan Hamadneh, M.D.Student in an Organized Health Care Education/Training Program1780508598
  3. Chandrasekhar Kunavarapu, M.D.Cardiovascular Disease Physician1447288022
  4. Dorothea Saenger, MDObstetrics & Gynecology Physician1487741492
  5. Rolando Zamora-Salinas, MDPediatric Cardiology Physician1073592838

Verify Marissa N. Largoza in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license L0366    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

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62% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

62 Medicare Part D claims for 22 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.

  1. Marissa Largoza62
  2. Specialty average165

Most prescribed

  1. Progesterone16 claims
  2. Estradiol13 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: $726.55

41 payments; by number, the most common kind was food and beverage; the largest payer was Shield Therapeutics Inc. The 21,429 providers of this specialty with any payment received $1,030.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marissa Largoza$726.55
  2. Specialty average$1,030.61

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Marissa N. Largoza among 3,524 obstetrics & gynecology physician records in Texas

Marissa N. Largoza, MD is one of 3,524 obstetrics & gynecology physician records with a practice address in Texas. 78% 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 15% of them.

  • NPI issued2006 · 15% of these records are older, 53% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 59% of these records are
  • Graduated1994 · median 2005 among the 2,093 with a school on file
  • Record last updated2022 · 54% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Obstetrics & Gynecology Physician providers in Texas

There are 3,524 obstetrics & gynecology physician records in Texas.

All 3,524 in Texas → Every provider in San Antonio → Obstetrics & Gynecology Physician nationwide →

The 8 obstetrics & gynecology physician records with the nearest ZIP codes

  1. Valentin Almendarez, M.D.San Antonio, TX 782291326037615
  2. James Bost, MDSan Antonio, TX 782291225021751
  3. Leslie Brown, MDSan Antonio, TX 782291710958400
  4. Karen Carcamo, M.D.San Antonio, TX 782291235129271
  5. Douglas Creedon, M.D.San Antonio, TX 782291295714780
  6. Rochelle David, M.D.San Antonio, TX 782291235111758
  7. David Dooley, M.D.San Antonio, TX 782291518947902
  8. Henry Garza, III, M.D.San Antonio, TX 782291962491175

Common questions

What is Marissa N. Largoza, MD's NPI number?

Marissa N. Largoza, MD's National Provider Identifier (NPI) is 1720183312, issued on Sep 14, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Marissa N. Largoza, MD located?

The NPPES record lists a practice address at 4499 Medical Drive, San Antonio, TX, 78229. Phone: (210) 692-0404. Providers update this record themselves, so call before visiting.

How can I verify Marissa N. Largoza, MD's license?

NPPES lists Texas license number L0366, 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 Marissa N. Largoza, MD prescribe under Medicare Part D?

In 2024, Marissa N. Largoza, MD had 62 Medicare Part D claims for 22 beneficiaries; the average among obstetrics & gynecology physician prescribers was 165. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.