Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Mr. Jason E. Gromoll, R.D., C.D.N

Registered Dietitian in Rotterdam, NY · enumerated 2011.

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

National Provider Identifier

1639452162

Verified

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Registry record

Entity type Individual (Type 1)

Name Mr. Jason E. Gromoll

Credential R.D., C.D.N

Sex Male

Practice address Rotterdam, NY, 12306

Phone (518) 250-3898

Enumeration date Sep 21, 2011

Last updated in NPPES Sep 21, 2011

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

133V00000X Registered Dietitian Dietary & Nutritional Service Providers · License 007243 (NY) Primary

RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration. About the RD credential

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 Jason Gromoll?

The National Provider Identifier (NPI) for Jason Gromoll is 1639452162, a Type 1 (individual) record in the CMS NPPES registry.

Where does Jason Gromoll practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-21.