Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Robert E. Dinsmore, MD

Hematology & Oncology Physician in Middletown, NY · enumerated 2005.

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

National Provider Identifier

1285635912

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Registry record

Entity type Individual (Type 1)

Name Robert E. Dinsmore

Credential MD

Sex Male

Practice address 155 Crystal Run Rd, Middletown, NY, 10941

Phone (845) 703-6999

Fax (845) 703-6297

Enumeration date Aug 3, 2005

Last updated in NPPES Aug 11, 2020

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 128385 (NY) Secondary

207RH0000X Hematology (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 128385 (NY) Secondary

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 128385 (NY) Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 128385 (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
00825874	Medicaid	NY	-

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 is the NPI number for Robert Dinsmore?

The National Provider Identifier (NPI) for Robert Dinsmore is 1285635912, a Type 1 (individual) record in the CMS NPPES registry.

Where does Robert Dinsmore practice?

The practice location on file with NPPES is in Middletown, NY. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-08-11.