Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. NICHOLAS BLAKE GREGORY DO
NPI 1043897051
Internal Medicine - Hospice and Palliative Medicine in Ypsilanti, MI

Active since March 25, 2021PECOS EnrolledAccepts Medicare Assignment
TRINITY HEALTH IHA MEDICAL GROUP PALLIATIVE CARE, 5301 MCAULEY DRIVE SUITE 2119, YPSILANTI, MI 48197(734) 712-7255 Get Directions Write a Review

NPPES record last updated: September 28, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 28, 2026, Jul 16, 2024, Jun 7, 2024 and 1 more (4 updates tracked since 2021).

About Dr. Nicholas Blake Gregory Do NPPES

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

DR. NICHOLAS BLAKE GREGORY DO (NPI 1043897051) is an individual hospice and palliative medicine provider in Ypsilanti, Michigan, licensed in Michigan (5101027953) and active in the NPI registry since March 2021. He is enrolled in Medicare PECOS, is affiliated with St Joe Mercy Hospital System Livonia, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1043897051
Entity TypeIndividualMale
Primary Taxonomy207RH0002X
Provider Legal NameDR. NICHOLAS BLAKE GREGORYCredential: DO
Location AddressTRINITY HEALTH IHA MEDICAL GROUP PALLIATIVE CARE, 5301 MCAULEY DRIVE SUITE 2119Ypsilanti, MI 48197
Mailing Address24 Frank Lloyd Wright Drive, Suite J2000Ann Arbor, MI 48105 · (734) 747-6766
Sole ProprietorYes
Medical School CMSOtherGraduated 2021
Enumeration DateMarch 25, 2021
Last NPPES UpdateSeptember 28, 20264 updates tracked since enumeration
NPPES CertifiedJuly 16, 2024
✔ NPI 1043897051 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · Hospice and Palliative MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207RH0002X
License✔ Licensed in MI · 5101027953
Definition
An internal medicine physician with special knowledge and skills to prevent and relieve the suffering experienced by patients with life-limiting illnesses. This specialist works with an interdisciplinary hospice or palliative care team to maximize quality of life while addressing physical, psychological, social and spiritual needs of both patient and family throughout the course of the disease, through the dying process, and beyond for the family. This specialist has expertise in the assessment of patients with advanced disease; the relief of distressing symptoms; the coordination of interdisciplinary patient and family-centered care in diverse venues; the use of specialized care systems including hospice; the management of the imminently dying patient; and legal and ethical decision making in end-of-life care.
Also ListedInternal MedicineTaxonomy 207R00000X · License 5101027953 (MI)
Also ListedGeneral PracticeTaxonomy 208D00000X · License 5101027953 (MI)
TRINITY HEALTH IHA MEDICAL GROUP PALLIATIVE CARE, Ypsilanti, MI 48197

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. Nicholas Blake Gregory Do 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.

PECOS PAC ID4082015623
PECOS Enrollment IDI20240612004321
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 Reassignment

Medicare enrollment records show Nicholas Gregory reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Internal Medicine
10020 PROFESSIONAL CENTER DRIVE, SUITE 120
Hamburg, MI 48139
  • Reassigned Medicare billing, Michigan enrollment
  • 1,480 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.

Hospital Affiliations CMS Care Compare 3

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

St Joe Mercy Hospital System Livonia

Acute Care Hospitals · Livonia, MI
2/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number230002
Location36475 Five Mile RoadLivonia, MI 48154 · Wayne County
Emergency services Birthing friendly

Saint Joseph Mercy Livingston Hospital

Acute Care Hospitals · Howell, MI
5/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number230069
Location620 Byron RdHowell, MI 48843 · Livingston County
Emergency services

Trinity Health Ann Arbor Hospital

Acute Care Hospitals · Ann Arbor, MI
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number230156
Location5301 E Huron River DrAnn Arbor, MI 48106 · Washtenaw County
Emergency services Birthing friendly

Other Providers at the Same Location NPPES 2

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Nurse Practitioner
TRINITY HEALTH IHA MEDICAL GROUP PALLIATIVE CARE, 5301 MCAULEY DRIVE SUITE 2119
YPSILANTI, MI 48197
Family Medicine
TRINITY HEALTH IHA MEDICAL GROUP PALLIATIVE CARE, 5301 MCAULEY DRIVE SUITE 2119
YPSILANTI, MI 48197

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 Nicholas Gregory's NPI number?

The NPI number for Nicholas Gregory is 1043897051. It was assigned to this individual provider in the NPPES registry on March 25, 2021.

Where is Nicholas Gregory located?

Nicholas Gregory practices at Trinity Health Iha Medical Group Palliative Care 5301 Mcauley Drive Suite 2119, Ypsilanti, MI 48197. The listed phone number is (734) 712-7255.

What is Nicholas Gregory's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hospice and Palliative Medicine, with taxonomy code 207RH0002X.

Is Nicholas Gregory enrolled in Medicare?

Yes. Nicholas Gregory 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 organization bills Medicare for Nicholas Gregory's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Nicholas Gregory reassigns Medicare benefits to Iha Health Services Corporation (Hamburg, MI). The 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 Nicholas Gregory's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Nicholas Gregory 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 1 other insurer list Nicholas Gregory 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 Nicholas Gregory affiliated with any hospitals?

According to CMS data, Nicholas Gregory is affiliated with St Joe Mercy Hospital System Livonia, Saint Joseph Mercy Livingston Hospital and Trinity Health Ann Arbor Hospital.

When was this NPI record last updated?

The NPPES record for Nicholas Gregory was last updated on September 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 25 days 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.