Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Michael W. Phelan, M.D.
Urology Physician in Baltimore, MD · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1760406482
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Registry record
Entity type Individual (Type 1)
Name Dr. Michael W. Phelan
Credential M.D.
Sex Male
Practice address 22 S Greene St, Baltimore, MD, 21201
Phone (410) 328-6897
Fax (410) 328-2109
Enumeration date Jul 26, 2006
Last updated in NPPES Feb 26, 2020
Taxonomy & licenses
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 |
|---|---|---|---|
| 2110686 | Other | MD | MDIPA |
| 62097501 | Other | MD | BLUE SHIELD |
| 81800 | Other | MD | GEISINGER |
| 402471100 | Medicaid | MD | - |
| 1901109 | Other | MD | UNITED HLTHCARE |
| 2339178 | Other | MD | UNITED HLTHCARE NATIONAL |
| 0087 | Other | MD | CAREFIRST REGIONAL |
| 240843 | Other | MD | KAISER |
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.
Frequently asked questions
What specialty is Michael Phelan?
Michael Phelan is registered in NPPES with the primary taxonomy of Urology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-02-26.