Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. JOHN A GROSSMAN M.D.
NPI 1609830090
Specialist in Denver, CO

Q: What is John Grossman's NPI number?

The NPI number for John Grossman is 1609830090. It was assigned to this individual provider in the NPPES registry on April 13, 2006.

Q: What is John Grossman's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Q: When was this NPI record last updated?

The NPPES record for John Grossman was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 13, 2006

4600 HALE PKWY, SUITE 100, DENVER, CO 80220(303) 320-5566(303) 320-1453 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Dr. John A Grossman M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. JOHN A GROSSMAN M.D. (NPI 1609830090) is an individual specialist in Denver, Colorado, licensed in Colorado (18139) and active in the NPI registry since April 2006.

NPPES Registry Identity

NPI1609830090

Entity TypeIndividualMale

Primary Taxonomy174400000X

Provider Legal NameDR. JOHN A GROSSMANCredential: M.D.

Location Address4600 HALE PKWY, SUITE 100Denver, CO 80220-4020

Mailing Address335 Clayton StDenver, CO 80206-4228 · (303) 329-8118

Phone(303) 320-5566

Fax(303) 320-1453

Sole ProprietorNo

Enumeration DateApril 13, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1609830090 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in CO · 18139

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

4600 HALE PKWY, Denver, CO 80220

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Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

JENSEN L JENSEN DPM

Podiatrist (Foot & Ankle Surgery)

4600 HALE PKWY, SUITE 440
DENVER, CO 80220

Denver County (303) 321-4477

COLORADO NEUROSURGERY ASSOCIATES, P.C.

Specialist

4600 HALE PKWY, SUITE 410
DENVER, CO 80220

Denver County (303) 333-8740

HEALTHONE CLINIC SERVICES - BARIATRIC MEDICINE LLC

Surgery

4600 HALE PKWY
DENVER, CO 80220

Denver County (303) 320-2121

SUSAN A SGAMBATI MD

Colon & Rectal Surgery

4600 HALE PKWY, SUITE 430
DENVER, CO 80220

Denver County (303) 377-6401

KIRSTIE JENENE TAYLOR AU.D.

Audiologist-Hearing Aid Fitter

4600 HALE PKWY, STE. 450
DENVER, CO 80220

Denver County (303) 377-4777

MS. KRISTIN LEE RANKIN M.A.CCC-A

Audiologist-Hearing Aid Fitter

4600 HALE PKWY, SUITE #450
DENVER, CO 80220

Denver County (303) 698-7378

PHILIPPE A CAPRARO MD PC

Specialist

4600 HALE PKWY, STE 100
DENVER, CO 80220

Denver County (303) 320-5566

ERIC D JAAKOLA DPM

Podiatrist (Foot & Ankle Surgery)

4600 HALE PKWY, SUITE 440
DENVER, CO 80220

Denver County (303) 321-4477

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is John Grossman's NPI number?

The NPI number for John Grossman is 1609830090. It was assigned to this individual provider in the NPPES registry on April 13, 2006.

Where is John Grossman located?

John Grossman practices at 4600 Hale Pkwy Suite 100, Denver, CO 80220. The listed phone number is (303) 320-5566.

What is John Grossman's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

When was this NPI record last updated?

The NPPES record for John Grossman was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 40 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.