INTERNAL MEDICINE GROUP
NPI 1649220393
Internal Medicine in Rochester, NY

Q: What is Internal Medicine Group's NPI number?

The NPI number for Internal Medicine Group is 1649220393. It was assigned to this organization in the NPPES registry on May 11, 2006.

Q: What is Internal Medicine Group's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Active since May 11, 2006

601 ELMWOOD AVE, ROCHESTER, NY 14642(585) 275-4912(585) 276-2144 Get Directions Write a Review

NPPES record last updated: August 24, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Aug 24, 2022, Apr 9, 2019 (2 updates tracked since 2019).

On this page

About Internal Medicine Group NPPES

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

INTERNAL MEDICINE GROUP (NPI 1649220393) is a healthcare organization registered as an internal medicine in Rochester, New York and active in the NPI registry since May 2006. The organization lists Jill M Hetterich, Senior Director Of Finance Urmfg, as its authorized official.

NPPES Registry Identity

NPI1649220393

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameINTERNAL MEDICINE GROUP

Location Address601 ELMWOOD AVERochester, NY 14642-0001

Mailing Address601 Elmwood Ave Box MedRochester, NY 14642-0001 · (585) 784-9750 · Fax (585) 784-8367

Phone(585) 275-4912

Fax(585) 276-2144

Organization SubpartNo

Authorized OfficialJill M HetterichSenior Director Of Finance Urmfg · (585) 756-4008

Enumeration DateMay 11, 2006

Last NPPES UpdateAugust 24, 20222 updates tracked since enumeration

NPPES CertifiedAugust 24, 2022

✔ NPI 1649220393 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207R00000X

Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

601 ELMWOOD AVE, Rochester, NY 14642

Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Internal Medicine Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

301

Medicare enrollment records show 301 clinicians reassign Medicare billing to Internal Medicine Group, which bills Medicare for the services they deliver. Of these, 177 practice at this address and 263 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 17

Internal Medicine155

Nurse Practitioner100

Hospitalist8

Registered Dietitian or Nutrition Professional8

Nephrology4

Pediatric Medicine4

Family Practice3

Infectious Disease3

9 other specialties16

Nearest to this location (20)

See all 301

Yousaf Ali, MD

Internal Medicine

NPI 1225053515

601 ELMWOOD AVE BOX MED
Rochester, NY 14642

(585) 275-4912

✔ PECOS✔ Accepts MedicareSame address

Emily Aman, NP

Nurse Practitioner

NPI 1881257731

601 ELMWOOD AVE
Rochester, NY 14642

(585) 275-2121

✔ PECOSSame address

Emily Andrea, NP

Nurse Practitioner

NPI 1356871750

601 ELMWOOD AVE
Rochester, NY 14642

(585) 275-2100

✔ PECOS✔ Accepts MedicareSame address

Katherine Arden, MD

Internal Medicine

NPI 1538696794

601 ELMWOOD AVE BOX MED
Rochester, NY 14642

(585) 275-2874

✔ PECOS✔ Accepts MedicareSame address

Ramandeep Babbra

Hospitalist

NPI 1811286743

601 ELMWOOD AVE
Rochester, NY 14642

(585) 275-4912

✔ PECOS✔ Accepts MedicareSame address

Makiko Ban Hoefen, MD

Hematology/Oncology

NPI 1972600492

601 ELMWOOD AVE
Rochester, NY 14642

(585) 275-4912

✔ PECOS✔ Accepts MedicareSame address

Amy Blatt, M.D.

Pediatric Medicine

NPI 1639181241

601 ELMWOOD AVE BOX HMD
Rochester, NY 14642

(585) 275-4912

✔ PECOS✔ Accepts MedicareSame address

Janice Cheong, M.D.

Gastroenterology

NPI 1962820324

601 ELMWOOD AVE
Rochester, NY 14642

(585) 275-4711

✔ PECOS✔ Accepts MedicareSame address

Daniel Chun, MD

Cardiovascular Disease (Cardiology)

NPI 1730536301

601 ELMWOOD AVE
Rochester, NY 14642

(585) 275-4912

✔ PECOS✔ Accepts MedicareSame address

David Dobrzynski, MD

Infectious Disease

NPI 1851659155

601 ELMWOOD AVE
Rochester, NY 14642

(585) 275-0526

✔ PECOS✔ Accepts MedicareSame address

Richard Dunne, M.D.

Hematology/Oncology

NPI 1528200300

601 ELMWOOD AVE BOX 704
Rochester, NY 14642

(585) 275-5863

✔ PECOS✔ Accepts MedicareSame address

Keely Dwyer Matzky, MD

Hospitalist

NPI 1437254828

601 ELMWOOD AVE BOX 667
Rochester, NY 14642

(585) 275-8138

✔ PECOS✔ Accepts MedicareSame address

Susan Gasparino, MD

Pediatric Medicine

NPI 1962526343

601 ELMWOOD AVE
Rochester, NY 14642

(585) 275-2821

✔ PECOSSame address

Matthew Gorgone

Pulmonary Disease

NPI 1326368606

STRONG MEMORIAL HOSPITAL 601 ELMWOOD AVENUE
Rochester, NY 14642

(585) 275-2100

✔ PECOS✔ Accepts MedicareSame address

Rickinder Grewal, M.D.

Nephrology

NPI 1508109836

601 ELMWOOD AVE
Rochester, NY 14642

(585) 275-7424

✔ PECOS✔ Accepts MedicareSame address

Denzil Harris, MD

Hospice/Palliative Care

NPI 1467915504

601 ELMWOOD AVE
Rochester, NY 14642

(585) 275-4912

✔ PECOS✔ Accepts MedicareSame address

Ted Louie, MD

Infectious Disease

NPI 1700856093

601 ELMWOOD AVE
Rochester, NY 14642

(585) 275-0526

✔ PECOS✔ Accepts MedicareSame address

Ryan Magnuson, D.O.

Critical Care (Intensivists)

NPI 1750542684

601 ELMWOOD AVE
Rochester, NY 14642

(585) 275-4161

✔ PECOS✔ Accepts MedicareSame address

Sarmad Siddiqui, MD

Family Practice

NPI 1205033834

601 ELMWOOD AVE
Rochester, NY 14642

(585) 275-4912

✔ PECOS✔ Accepts MedicareSame address

Jason Zittel, M.D.

Medical Oncology

NPI 1437425469

601 ELMWOOD AVE
Rochester, NY 14642

(585) 275-5823

✔ PECOS✔ Accepts MedicareSame address

See all 301 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Internal Medicine Group's NPI number?

The NPI number for Internal Medicine Group is 1649220393. It was assigned to this organization in the NPPES registry on May 11, 2006.

Where is Internal Medicine Group located?

Internal Medicine Group is located at 601 Elmwood Ave, Rochester, NY 14642. The listed phone number is (585) 275-4912.

What is Internal Medicine Group's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Internal Medicine Group enrolled in Medicare?

Yes. Internal Medicine Group is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Internal Medicine Group?

According to the CMS Revalidation Reassignment List (October 2026 release), 301 clinicians in 17 Medicare specialties reassign their Medicare billing to Internal Medicine Group. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. The largest specialties are Internal Medicine (155), Nurse Practitioner (100) and Hospitalist (8). Of these, 177 practice at this address and 263 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Internal Medicine Group was last updated on August 24, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.