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DEREK I GROSSMAN DO
NPI 1770512410
Internal Medicine in Traverse City, MI

Active since July 03, 2006PECOS Enrolled
5365 HIDDEN GLEN DR, TRAVERSE CITY, MI 49684(989) 621-5014 Get Directions Write a Review

NPPES record last updated: April 12, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 12, 2021, May 6, 2020 (2 updates tracked since 2020).

About Derek I Grossman Do NPPES

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

DEREK I GROSSMAN DO (NPI 1770512410) is an individual internal medicine provider in Traverse City, Michigan, licensed in Michigan (5101011248) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1770512410
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDEREK I GROSSMANCredential: DO
Location Address5365 HIDDEN GLEN DRTraverse City, MI 49684-7042
Mailing AddressPo Box 107Traverse City, MI 49685-0107 · (231) 922-9270 · Fax (231) 922-9271
Phone(989) 621-5014
Sole ProprietorNo
Enumeration DateJuly 3, 2006
Last NPPES UpdateApril 12, 20212 updates tracked since enumeration
NPPES CertifiedApril 12, 2021
✔ NPI 1770512410 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MI · 5101011248
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.
5365 HIDDEN GLEN DR, Traverse City, MI 49684
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Secondary Practice Locations 2

Location 11105 Sixth StTraverse City, MI 49684-2349 · Phone (231) 922-9270 · Fax (231) 922-9271
Location 23023 Davenport AveSaginaw, MI 48602-3652 · Phone (989) 907-2761 · Fax (989) 907-2762

Other Identifiers 1

Medicaid4892891MI

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Derek I Grossman Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show Derek Grossman reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Sound Inpatient Physicians-Michigan PLLC
49 mi
Internal Medicine
1100 E MICHIGAN AVE
Grayling, MI 49738
  • Reassigned Medicare billing, Michigan enrollment
  • 596 clinicians in this Medicare group
NPI 1639311996 (989) 348-5461
Great Lakes Bay Health Centers
127 mi
Federally Qualified Health Center (FQHC)
501 LAPEER
Saginaw, MI 48607
  • Reassigned Medicare billing, Michigan enrollment
  • 229 clinicians in this Medicare group
NPI 1629171707 (989) 759-6464
Hospitalist Medicine Physicians Of Michigan, PLLC
213 mi
Internal Medicine
818 RIVERSIDE AVE
Adrian, MI 49221
  • Reassigned Medicare billing, Michigan enrollment
  • 237 clinicians in this Medicare group
NPI 1013180181 (330) 493-4443

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 49684 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$126.15 typical visit price
range $54.34 – $166.68
Typical copayment $31.53 (range $13.58 – $41.67)
Most-billed visit code 99204
Established Patient
$96.44 typical visit price
range $17.09 – $135.40
Typical copayment $24.11 (range $4.27 – $33.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Derek Grossman's NPI number?

The NPI number for Derek Grossman is 1770512410. It was assigned to this individual provider in the NPPES registry on July 3, 2006.

Where is Derek Grossman located?

Derek Grossman practices at 5365 Hidden Glen Dr, Traverse City, MI 49684. The listed phone number is (989) 621-5014.

What is Derek Grossman's specialty?

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

Is Derek Grossman enrolled in Medicare?

Yes. Derek Grossman is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Derek Grossman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Derek Grossman reassigns Medicare benefits to 3 organizations: Sound Inpatient Physicians-Michigan PLLC (Grayling, MI), Great Lakes Bay Health Centers (Saginaw, MI) and Hospitalist Medicine Physicians Of Michigan, PLLC (Adrian, MI). Each 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 Derek Grossman's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Derek Grossman was last updated on April 12, 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.