DR. PETER GREGORY GULICK D.O.
NPI 1255383238
Internal Medicine - Infectious Disease in Lansing, MI
About Dr. Peter Gregory Gulick D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PETER GREGORY GULICK D.O. (NPI 1255383238) is an individual infectious disease provider in Lansing, Michigan, licensed in Michigan (5101009127) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Mymichigan Medical Center Clare, and maintains a secondary practice location in Saginaw.
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Location 1
Other Identifiers 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Peter Gregory Gulick D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Peter Gulick reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Lansing, MI 48911
- Reassigned Medicare billing, Michigan enrollment
- 38 clinicians in this Medicare group
Saginaw, MI 48607
- Reassigned Medicare billing, Michigan enrollment
- 229 clinicians in this Medicare group
Mount Pleasant, MI 48858
- Reassigned Medicare billing, Michigan enrollment
- 9 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 2
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mymichigan Medical Center Clare
Acute Care Hospitals · Clare, MIEdward W Sparrow Hospital
Acute Care Hospitals · Lansing, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48911 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Peter Gulick's NPI number?
The NPI number for Peter Gulick is 1255383238. It was assigned to this individual provider in the NPPES registry on May 17, 2006.
Where is Peter Gulick located?
Peter Gulick practices at 5303 S Cedar St, Lansing, MI 48911. The listed phone number is (517) 887-4302.
What is Peter Gulick's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Peter Gulick enrolled in Medicare?
Yes. Peter Gulick is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Peter Gulick's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Peter Gulick reassigns Medicare benefits to 3 organizations: County Of Ingham (Lansing, MI), Great Lakes Bay Health Centers (Saginaw, MI) and Central Michigan District Health Department (Mount Pleasant, 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 Peter Gulick's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Peter Gulick accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 2 other insurers list Peter Gulick 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.
Is Peter Gulick affiliated with any hospitals?
According to CMS data, Peter Gulick is affiliated with Mymichigan Medical Center Clare and Edward W Sparrow Hospital.
When was this NPI record last updated?
The NPPES record for Peter Gulick was last updated on April 8, 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.
# Dr. Peter Gregory Gulick, D.O. · NPI 1255383238
Infectious Disease physician in Lansing, Michigan. Individual provider, active in the CMS NPPES registry since May 17, 2006.
## Identity
- **NPI:** 1255383238 (Entity type: Individual)
- **Enumerated:** May 17, 2006
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** 5101009127 (Michigan)
- **Sole proprietor:** No
## Practice location
- **Address:** 5303 S CEDAR ST, Lansing, MI 48911-3800
- **Phone:** (517) 887-4302 · **Fax:** (517) 887-4437
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): County Of Ingham (NPI 1568560308, Lansing, MI); Great Lakes Bay Health Centers (NPI 1629171707, Saginaw, MI); Central Michigan District Health Department (NPI 1245283977, Mount Pleasant, MI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Midwestern University, Chicago College Of Osteopathic Med, class of 1972
## Record status
- **NPPES last updated:** April 8, 2021
- **Other identifiers:** Medicaid 1255383238 (MI); Medicaid 4460789 (MI)
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Source: [NPI Profile](https://npiprofile.com/npi/1255383238) · Data from the CMS NPPES public registry.