Margaret Warren, D.O.
NPI 1841519394 · Maternal & Fetal Medicine Physician · Tyler, TX
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Margaret Warren, D.O. is a Maternal & Fetal Medicine Physician provider in Tyler, TX (NPI 1841519394).
Provider details
- NPI number
- 1841519394
- Entity type
- Individual
- Primary specialty
- Maternal & Fetal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- R5679 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
16 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$22 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 7950 Floyd Curl Dr Ste 904San Antonio, TX 78229-3926Phone: (214) 614-2209Fax: (210) 593-0329
Registry dates
- Enumerated
- 2010-05-24
- Last updated
- 2022-09-20
- Certified
- 2022-09-20
Frequently asked questions
- What is Margaret Warren's NPI number?
- Margaret Warren's National Provider Identifier (NPI) is 1841519394, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Margaret Warren's specialty?
- Margaret Warren is listed in the NPPES registry with a primary specialty of Maternal & Fetal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Margaret Warren located?
- Margaret Warren's practice location on file with NPPES is 620 S Fleishel Ave, Tyler, TX 75701-2041.
- What is Margaret Warren's phone number?
- The practice phone number listed in the NPPES registry for Margaret Warren is (903) 606-4900.
- Does Margaret Warren accept Medicare?
- Margaret Warren is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Margaret Warren's NPI active?
- Yes — Margaret Warren's NPI (1841519394) is active in the NPPES registry as of the last update on 2022-09-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.