INTERNAL MEDICINE SPECIALISTS
NPI 1023043486
Internal Medicine in West Bloomfield, MI

Q: What is Mmg 1 PC's NPI number?

The NPI number for Mmg 1 PC is 1023043486. It was assigned to this organization in the NPPES registry on July 12, 2006. The provider is doing business as Internal Medicine Specialists.

Q: What is Mmg 1 PC's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Mmg 1 PC was last updated on May 24, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.

Active since July 12, 2006

5821 W MAPLE RD, SUITE 190, WEST BLOOMFIELD, MI 48322(248) 855-0407(248) 855-1323 Get Directions Write a Review

NPPES record last updated: May 24, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: May 24, 2021, Sep 20, 2018 (2 updates tracked since 2018).

On this page

About Internal Medicine Specialists NPPES

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

INTERNAL MEDICINE SPECIALISTS (NPI 1023043486) is a healthcare organization registered as an internal medicine in West Bloomfield, Michigan and active in the NPI registry since July 2006. The organization lists Geoffrey A Trivax, President, as its authorized official.

NPPES Registry Identity

NPI1023043486

Entity TypeOrganization

Primary Taxonomy207R00000X

Legal Business NameMMG 1 PC

Location Address5821 W MAPLE RD, SUITE 190West Bloomfield, MI 48322-2275

Mailing Address29992 Northwestern Hwy Ste CFarmington Hills, MI 48334-3292 · (248) 851-1430 · Fax (248) 851-5182

Phone(248) 855-0407

Fax(248) 855-1323

Organization SubpartNo

Authorized OfficialGeoffrey A TrivaxPresident · (313) 538-3099

Enumeration DateJuly 12, 2006

Last NPPES UpdateMay 24, 20212 updates tracked since enumeration

NPPES CertifiedMay 24, 2021

✔ NPI 1023043486 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.

5821 W MAPLE RD, West Bloomfield, MI 48322

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Other Names 1

Doing Business AsInternal Medicine Specialists

Other Identifiers 2

Other110F375900MI · Blue Shield Group

OtherCG6179MI · Medicare Id Type Unspecified

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

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 29 clinicians reassign Medicare billing to Internal Medicine Specialists, which bills Medicare for the services they deliver. Of these, 19 practice within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 7

Diagnostic Radiology13

Cardiovascular Disease (Cardiology)6

Interventional Cardiology3

Internal Medicine2

Interventional Radiology2

Physical Medicine and Rehabilitation2

Pulmonary Disease1

Nearest to this location (20)

See all 29

George Dirani, M.D

Interventional Cardiology

NPI 1619310885

32255 NORTHWESTERN HWY STE 115
Farmington Hills, MI 48334

(248) 587-2300

✔ PECOS✔ Accepts Medicare1.6 mi

Harvey Sabbota, D.O.

Internal Medicine

NPI 1306836390

32255 NORTHWESTERN HWY STE 130
Farmington Hills, MI 48334

(248) 723-5880

✔ PECOS1.6 mi

Eric Greenberg, DO

Cardiovascular Disease (Cardiology)

NPI 1689812489

32255 NORTHWESTERN HWY STE 115
Farmington Hills, MI 48334

(248) 587-2300

✔ PECOS✔ Accepts Medicare1.6 mi

James Lyddon, DO

Diagnostic Radiology

NPI 1992770986

32255 NORTHWESTERN HWY STE 100
Farmington Hills, MI 48334

(248) 945-0000

✔ PECOS✔ Accepts Medicare1.6 mi

Daya Vora, M.D.

Diagnostic Radiology

NPI 1023218153

32255 NORTHWESTERN HWY STE 100
Farmington Hills, MI 48334

(248) 945-0000

✔ PECOS✔ Accepts Medicare1.6 mi

Dustin Feldman, D.O.

Interventional Cardiology

NPI 1689894867

32255 NORTHWESTERN HWY STE 50
Farmington Hills, MI 48334

(947) 227-8420

✔ PECOS✔ Accepts Medicare1.6 mi

Jonathan Olsen, M.D.

Diagnostic Radiology

NPI 1700198561

32255 NORTHWESTERN HWY STE 135
Farmington Hills, MI 48334

(947) 228-5500

✔ PECOS✔ Accepts Medicare1.6 mi

Stephen Vartanian, MD

Interventional Radiology

NPI 1790990919

32255 NORTHWESTERN HWY STE 135
Farmington Hills, MI 48334

(947) 228-5500

✔ PECOS✔ Accepts Medicare1.6 mi

Stephen Gunther, MD

Cardiovascular Disease (Cardiology)

NPI 1205942182

26400 W 12 MILE RD SUITE 120
Southfield, MI 48034

(248) 304-3200

✔ PECOS4.1 mi

Steven Korotkin, MD

Cardiovascular Disease (Cardiology)

NPI 1396736179

32270 TELEGRAPH RD STE 100
Bingham Farms, MI 48025

(248) 258-2888

✔ PECOS✔ Accepts Medicare4.4 mi

Herman Kado, M.D.

Cardiovascular Disease (Cardiology)

NPI 1033367362

28625 NORTHWESTERN HWY SUITE 150
Southfield, MI 48034

(248) 587-2300

✔ PECOS✔ Accepts Medicare4.5 mi

Justin Trivax, M.D.

Interventional Cardiology

NPI 1174566095

31500 TELEGRAPH RD SUITE 115
Bingham Farms, MI 48025

(248) 594-4913

✔ PECOS✔ Accepts Medicare4.5 mi

Michael Haenick, MD

Physical Medicine and Rehabilitation

NPI 1235127770

42350 GRAND RIVER AVE
Novi, MI 48375

(248) 697-2942

✔ PECOS✔ Accepts Medicare6.6 mi

Eugene Tryciecky, DO

Diagnostic Radiology

NPI 1467522961

28050 GRAND RIVER AVE
Farmington Hills, MI 48336

(248) 471-8371

✔ PECOS✔ Accepts Medicare6.9 mi

Michael Savin, M.D.

Interventional Radiology

NPI 1821059049

3601 W 13 MILE RD
Royal Oak, MI 48073

(248) 898-6064

✔ PECOS✔ Accepts Medicare9.1 mi

Syed Jafri, MD

Diagnostic Radiology

NPI 1467412221

3601 W 13 MILE RD
Royal Oak, MI 48073

(248) 551-6069

✔ PECOS✔ Accepts Medicare9.1 mi

Adam Tawney, MD

Cardiovascular Disease (Cardiology)

NPI 1962865147

3601 W 13 MILE RD
Royal Oak, MI 48073

(313) 473-1000

✔ PECOS✔ Accepts Medicare9.1 mi

Anindya Roy, MD

Diagnostic Radiology

NPI 1083674071

3601 W 13 MILE RD
Royal Oak, MI 48073

(248) 423-2481

✔ PECOS✔ Accepts Medicare9.3 mi

Garrett Walworth, M.D.

Diagnostic Radiology

NPI 1598794927

3601 W 13 MILE RD
Royal Oak, MI 48073

(248) 898-6064

✔ PECOS✔ Accepts Medicare9.3 mi

Roshni Shah, D.O.

Cardiovascular Disease (Cardiology)

NPI 1962705004

22250 PROVIDENCE DR STE 705
Southfield, MI 48075

(248) 552-9858

✔ PECOS✔ Accepts Medicare10 mi

See all 29 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 Mmg 1 PC's NPI number?

The NPI number for Mmg 1 PC is 1023043486. It was assigned to this organization in the NPPES registry on July 12, 2006. The provider is doing business as Internal Medicine Specialists.

Where is Mmg 1 PC located?

Mmg 1 PC is located at 5821 W Maple Rd Suite 190, West Bloomfield, MI 48322. The listed phone number is (248) 855-0407.

What is Mmg 1 PC's specialty?

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

Is Mmg 1 PC enrolled in Medicare?

Yes. Mmg 1 PC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mmg 1 PC?

According to the CMS Revalidation Reassignment List (October 2026 release), 29 clinicians in 7 Medicare specialties reassign their Medicare billing to Mmg 1 PC. 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 Diagnostic Radiology (13), Cardiovascular Disease (Cardiology) (6) and Interventional Cardiology (3). Of these, 19 practice 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 Mmg 1 PC was last updated on May 24, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.