George Phelan Ahlering, MD
Gynecology Physician · Chesterfield, MO
George Phelan Ahlering, MD is a gynecology physician with a practice address in Chesterfield, Missouri, and NPI 1851334957, issued on Jun 14, 2006. Check the license (Missouri R2D12, as entered in NPPES) on the Missouri Board of Registration for the Healing Arts; the Medicare figures below come from public CMS files.
- Name
- George Phelan Ahlering
- Credential
- MD
- Primary taxonomy
- Gynecology Physician 207VG0400X
- License number
- R2D12 MO
Self-reported in NPPES; status is on the state search - Practice location
- 16216 Baxter RD, Chesterfield, MO 63017
- Phone
- (636) 449-4700
- Enumerated
- Jun 14, 2006
- Record last updated
- Oct 16, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (636) 449-2596
- Entity
- Type 1 · individual
8 nearest gynecology physician records → All 48 in Missouri → Look up another NPI →
Also registered at 16216 Baxter RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Alison Babb, OTR/LPediatric Occupational Therapist1871892869
- Kristen BollierSpeech-Language Pathologist1356690895
- Jesica Campbell, N.P.Women's Health Nurse Practitioner1225587447
- Glenn Cheng, M.D.Pediatrics Physician1245363555
Verify George Phelan Ahlering in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMissouri Board of Registration for the Healing Arts
Search for license R2D12Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average gynecology physician in 2024
29 Medicare Part D claims for 16 beneficiaries, against an average of 299 among the 1,919 providers of this specialty who prescribed in Part D.
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.
George Phelan Ahlering among 48 gynecology physician records in Missouri
George Phelan Ahlering, MD is one of 48 gynecology physician records with a practice address in Missouri. 69% 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 13% of them.
- NPI issued2006 · 13% of these records are older, 31% newer
- In a Medicare fileYes · 69% of these records are
- In the CMS Doctors and Clinicians fileNo · 38% of these records are
- Record last updated2007 · 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 207VG0400X and a Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Gynecology Physician providers in Missouri
There are 48 gynecology physician records in Missouri.
All 48 in Missouri → Every provider in Chesterfield → Gynecology Physician nationwide →
The 8 gynecology physician records with the nearest ZIP codes
- Melinda Auer, M.D.Chesterfield, MO 630171326336314
- Stephen Yim, MDChesterfield, MO 630171043221047
- Renee Ewing, M.D.Saint Louis, MO 631051467414177
- David McIntosh, MDSaint Louis, MO 631061710050869
- Scott Biest, MDSaint Louis, MO 631081952419210
- David Eisenberg, MDSaint Louis, MO 631081033304415
- Colleen McNicholas, DOSaint Louis, MO 631081962664730
- Diane Merritt, MDSaint Louis, MO 631081437172459
Common questions
What is George Phelan Ahlering, MD's NPI number?
George Phelan Ahlering, MD's National Provider Identifier (NPI) is 1851334957, issued on Jun 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is George Phelan Ahlering, MD located?
The NPPES record lists a practice address at 16216 Baxter RD, Chesterfield, MO, 63017. Phone: (636) 449-4700. Providers update this record themselves, so call before visiting.
How can I verify George Phelan Ahlering, MD's license?
NPPES lists Missouri license number R2D12, as entered by the provider. Search the Missouri Board of Registration for the Healing Arts at https://www.fsmb.org/contact-a-state-medical-board/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does George Phelan Ahlering, MD prescribe under Medicare Part D?
In 2024, George Phelan Ahlering, MD had 29 Medicare Part D claims for 16 beneficiaries; the average among gynecology physician prescribers was 299. 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.