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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Alan Erwin Donnenfeld, M.D.

Clinical Genetics (M.D.) Physician in Phoenixville, PA · enumerated 2006 · practices at Regional Womens Health Group LLC.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1205894219

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Registry record

Entity type Individual (Type 1)
Name Dr. Alan Erwin Donnenfeld
Credential M.D.
Sex Male
Practice address 450 Cresson Blvd Ste 300, Phoenixville, PA, 19460
Phone (484) 831-0200
Fax (484) 831-0209
Enumeration date May 2, 2006
Last updated in NPPES Jul 7, 2025

Taxonomy & licenses

207SG0201X Clinical Genetics (M.D.) Physician Allopathic & Osteopathic Physicians · License MT006828T (PA) Secondary
207SG0201X Clinical Genetics (M.D.) Physician Allopathic & Osteopathic Physicians · License 25MA04955700 (NJ) Secondary
207SG0201X Clinical Genetics (M.D.) Physician Allopathic & Osteopathic Physicians · License 205012-1 (NY) Secondary
207SG0201X Clinical Genetics (M.D.) Physician Allopathic & Osteopathic Physicians · License C1-0006729 (DE) Secondary
207SG0201X Clinical Genetics (M.D.) Physician Allopathic & Osteopathic Physicians · License 153714 (MA) Secondary
207SG0201X Clinical Genetics (M.D.) Physician Allopathic & Osteopathic Physicians · License 037414 (CT) Secondary
207SG0201X Clinical Genetics (M.D.) Physician Allopathic & Osteopathic Physicians · License MD027052E (PA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
00108294 Medicaid PA -
1652891 Other PA BC/BS HIGHMARK GROUP
2330386000 Other PA BC/BS KEY, PER. GROUP
30018989 Other PA KEYSTONE MERCY GROUP
3971180 Other PA AETNA US HEALTHCARE HMO
33658 Other PA HEALTH PARTNERS
33659 Other PA HEALTH PARTNERS
0078843000 Other PA BC/BS KEYSTONE, PERSONAL
096008 Other PA BC/BS SHIELD HIGHMARK
3716959 Other PA AETNA US HEALTHCARE GROUP
30023531 Other PA KEYSTONE MERCY
33657 Other PA HEALTH PARTNERS
4100924 Other PA AETNA US HEALTHCARE

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Alan Donnenfeld practice?
The practice location on file with NPPES is in Phoenixville, PA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Alan Donnenfeld?
The National Provider Identifier (NPI) for Alan Donnenfeld is 1205894219, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-07.