NPPES file of Aug 9, 2026

Margaret Anne Warren, D.O.

Maternal & Fetal Medicine Physician · Tyler, TX

Margaret Anne Warren, D.O. is a maternal & fetal medicine physician with a practice address in Tyler, Texas, and NPI 1841519394, issued on May 24, 2010. Check the license (Texas R5679, 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
1841519394
Name
Margaret Anne Warren
Credential
D.O.
Primary taxonomy
Maternal & Fetal Medicine Physician 207VM0101X
License numbers
R5679 TX
OS017025 PA
Self-reported in NPPES; status is on the state search
Practice location
620 S Fleishel Ave, Tyler, TX 75701
Phone
(903) 606-4900
Enumerated
May 24, 2010
Record last updated
Sep 20, 2022
Medicaid ID
102917724 PA
Medicare enrollment
Enrolled (PECOS I20180321002341); accepts Medicare assignment
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 620 S Fleishel Ave

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

  1. Rajeshwari Koti, MS, MSC, CGCGenetic Counselor (M.S.)1306768676
  2. Heather Lucas, MSGenetic Counselor (M.S.)1568088748
  3. Suwan Mehra, MDMaternal & Fetal Medicine Physician1396948659
  4. Frederico Rocha, M.D.Obstetrics & Gynecology Physician1417149022
  5. Mojirayo Sarumi, D.O.Maternal & Fetal Medicine Physician1134557952

Verify Margaret Anne Warren in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license R5679
    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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Industry payments in 2024: $21.69

1 payment: food and beverage; the largest payer was Abbott Laboratories. The 784 providers of this specialty with any payment received $1,252.61 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Margaret Warren$21.69
  2. Specialty average$1,252.61

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. Physician Associates OF Southwest DallasDallas, TX

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

Margaret Anne Warren among 308 maternal & fetal medicine physician records in Texas

Margaret Anne Warren, D.O. is one of 308 maternal & fetal medicine physician records with a practice address in Texas. 77% 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 63% of them.

  • NPI issued2010 · 63% of these records are older, 32% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2010 · median 2006 among the 187 with a school on file
  • Record last updated2022 · 47% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207VM0101X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Maternal & Fetal Medicine Physician providers in Texas

There are 308 maternal & fetal medicine physician records in Texas.

The 8 maternal & fetal medicine physician records with the nearest ZIP codes

  1. Suwan Mehra, MDTyler, TX 757011396948659
  2. Mojirayo Sarumi, D.O.Tyler, TX 757011134557952
  3. Christie Walker, M.D.Tyler, TX 757011750673554
  4. Nathan Drever, MDLongview, TX 756051578744967
  5. Emily Adhikari, M.D.Dallas, TX 753901346530607
  6. Anne Ambia, M.D.Dallas, TX 753901518224435
  7. Stefanie Bryant, M.D.Dallas, TX 753901053637603
  8. Ralph Burns, M.D.Dallas, TX 753901275982720

Common questions

What is Margaret Anne Warren, D.O.'s NPI number?

Margaret Anne Warren, D.O.'s National Provider Identifier (NPI) is 1841519394, issued on May 24, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Margaret Anne Warren, D.O. located?

The NPPES record lists a practice address at 620 S Fleishel Ave, Tyler, TX, 75701. Phone: (903) 606-4900. Providers update this record themselves, so call before visiting.

How can I verify Margaret Anne Warren, D.O.'s license?

NPPES lists Texas license number R5679, 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.

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.