NPPES file of Aug 9, 2026

Allison P. Warren, M.D.

Obstetrics & Gynecology Physician · Huntsville, AL

Allison P. Warren, M.D. is an obstetrics & gynecology physician with a practice address in Huntsville, Alabama, and NPI 1548592447, issued on Feb 3, 2010. Check the license (Alabama 34697, as entered in NPPES) on the Alabama Board of Medical Examiners; 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
1548592447
Name
Allison P. Warren
Credential
M.D.
Primary taxonomy
Obstetrics & Gynecology Physician 207V00000X
License numbers
34697 AL
156920 NC
Self-reported in NPPES; status is on the state search
Practice location
401 Lowell Dr SE Ste 1, Huntsville, AL 35801
Phone
(256) 265-4462
Enumerated
Feb 3, 2010
Record last updated
May 24, 2022
Fax
(256) 265-4463
Medicare enrollment
Enrolled (PECOS I20160511001349); accepts Medicare assignment
Medical or professional school
University Of Alabama School Of Medicine, 2009
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 401 Lowell Dr SE Ste 1

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

  1. Kelly Crow, PAPhysician Assistant1003427618
  2. Julie Grimes Mumfrey, M.D.Obstetrics & Gynecology Physician1942318282
  3. Patricia Miller, MDObstetrics & Gynecology Physician1134192347
  4. Paul Mumfrey, MDObstetrics & Gynecology Physician1447237763
  5. Christy Pettes, M.D.Obstetrics & Gynecology Physician1467573857
  6. Susan Woodard, WHNPWomen's Health Nurse Practitioner1750690798

Verify Allison P. Warren in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersAlabama Board of Medical Examiners
    Search for license 34697
    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 Alabama 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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64% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024

59 Medicare Part D claims for 25 beneficiaries, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D. 19 claims were for opioids.

  1. Allison Warren59
  2. Specialty average165

Most prescribed

  1. 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: $251.69

11 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US 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. Allison Warren$251.69
  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.

Bills Medicare through one group practice

  1. Decatur Women's HealthcareDecatur, AL

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

Allison P. Warren among 525 obstetrics & gynecology physician records in Alabama

Allison P. Warren, M.D. is one of 525 obstetrics & gynecology physician records with a practice address in Alabama. 84% 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 68% of them.

  • NPI issued2010 · 68% of these records are older, 30% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2009 · median 2004 among the 350 with a school on file
  • Record last updated2022 · 55% 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 Alabama 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 Alabama

There are 525 obstetrics & gynecology physician records in Alabama.

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

  1. Donald Aulds, M.D.Huntsville, AL 358011912967696
  2. Michael Belmont, M.D.Huntsville, AL 358011093771214
  3. Sharon Callison, MDHuntsville, AL 358011013901107
  4. Joseph Fiore, M.D.Huntsville, AL 358011982675336
  5. Krishna Kakani, MDHuntsville, AL 358011568456655
  6. Leon Lewis, MDHuntsville, AL 358011740260744
  7. Timothy McMichens, M.D.Huntsville, AL 358011750347019
  8. Patricia Miller, MDHuntsville, AL 358011134192347

Common questions

What is Allison P. Warren, M.D.'s NPI number?

Allison P. Warren, M.D.'s National Provider Identifier (NPI) is 1548592447, issued on Feb 3, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Allison P. Warren, M.D. located?

The NPPES record lists a practice address at 401 Lowell Dr SE Ste 1, Huntsville, AL, 35801. Phone: (256) 265-4462. Providers update this record themselves, so call before visiting.

How can I verify Allison P. Warren, M.D.'s license?

NPPES lists Alabama license number 34697, as entered by the provider. Search the Alabama Board of Medical Examiners at https://www.albme.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Allison P. Warren, M.D. prescribe under Medicare Part D?

In 2024, Allison P. Warren, M.D. had 59 Medicare Part D claims for 25 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.

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.