Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Aaron M Olden, MD

Hospice and Palliative Medicine (Internal Medicine) Physician in Penfield, NY · enumerated 2006.

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

National Provider Identifier

1225086440

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Registry record

Entity type Individual (Type 1)

Name Aaron M Olden

Credential MD

Sex Male

Practice address 421 Penbrooke Dr Ste 12a, Penfield, NY, 14526

Phone (585) 481-1811

Fax (585) 364-0156

Enumeration date May 4, 2006

Last updated in NPPES Dec 29, 2018

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 239654 (NY) Secondary

207RH0002X Hospice and Palliative Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 239654 (NY) 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
P00884028	Other	NY	MEDICARE RAILROAD

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Aaron Olden?

Aaron Olden is registered in NPPES with the primary taxonomy of Hospice and Palliative Medicine (Internal Medicine) 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.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-12-29.