SPECIALIST GROUP
NPI 1750500435
Internal Medicine in Hastings, MI
About Specialist Group NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SPECIALIST GROUP (NPI 1750500435) is a healthcare organization registered as an internal medicine in Hastings, Michigan and active in the NPI registry since April 2007. The organization lists Robert Davis, Director Of Operations, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 2
Group Practice 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Specialist Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
183Medicare enrollment records show 183 clinicians reassign Medicare billing to Specialist Group, which bills Medicare for the services they deliver. Of these, 4 practice at this address and 25 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 18
Nearest to this location (20)
See all 183Source: 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 Pennock Hospital's NPI number?
The NPI number for Pennock Hospital is 1750500435. It was assigned to this organization in the NPPES registry on April 24, 2007. The provider is doing business as Specialist Group.
Where is Pennock Hospital located?
Pennock Hospital is located at 1009 W Green Street, Hastings, MI 49058. The listed phone number is (269) 945-1212.
What is Pennock Hospital's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Pennock Hospital enrolled in Medicare?
Yes. Pennock Hospital is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Pennock Hospital?
According to the CMS Revalidation Reassignment List (October 2026 release), 183 clinicians in 18 Medicare specialties reassign their Medicare billing to Pennock Hospital. 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 Nurse Practitioner (71), Obstetrics/Gynecology (27) and Pediatric Medicine (20). Of these, 4 practice at this address and 25 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
What insurance does Pennock Hospital accept?
Health plans from Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company list Pennock Hospital as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Pennock Hospital was last updated on May 12, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Specialist Group · NPI 1750500435
Internal Medicine organization in Hastings, Michigan. Organization record, active in the CMS NPPES registry since April 24, 2007.
## Identity
- **NPI:** 1750500435 (Entity type: Organization)
- **Enumerated:** April 24, 2007
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Legal business name:** Pennock Hospital
- **Organization subpart:** No
- **Authorized official:** Robert Davis, DIRECTOR OF OPERATIONS
## Practice location
- **Address:** 1009 W GREEN STREET, Hastings, MI 49058-1710
- **Phone:** (269) 945-1212 · **Fax:** (269) 948-3117
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 183 clinicians in 18 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (71), Obstetrics/Gynecology (27), Pediatric Medicine (20); 4 practice at this address and 25 within 10 miles; [full list](https://npiprofile.com/npi/1750500435/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** May 12, 2016
- **Other identifiers:** Other CA9744 (MI); Medicare PIN 0Z86004 (MI)
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Source: [NPI Profile](https://npiprofile.com/npi/1750500435) · Data from the CMS NPPES public registry.