DONALD ERNEST GREER JR.
NPI 1013606011
Nurse Practitioner - Family in Michigan City, IN
About Donald Ernest Greer Jr. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DONALD ERNEST GREER JR. (NPI 1013606011) is an individual family provider in Michigan City, Indiana, licensed in Indiana (28200905A) and active in the NPI registry since May 2023. He is enrolled in Medicare PECOS, is affiliated with Northwest Health - Starke, and is a graduate of Other (2023).
NPPES Registry Identity
Specialties & Licenses 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
Donald Ernest Greer Jr. 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
5Medicare enrollment records show Donald Greer reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Valparaiso, IN 46383
- Reassigned Medicare billing, Indiana enrollment
- Medicare enrollment name: Shifa Clinic PC
- 7 clinicians in this Medicare group
Knox, IN 46534
- Reassigned Medicare billing, Indiana enrollment
- Also billed through NPI 1306928213 (Indiana)
- 63 clinicians in this Medicare group
Mishawaka, IN 46544
- Reassigned Medicare billing, Indiana enrollment
- 1,396 clinicians in this Medicare group
Corydon, IN 47112
- Reassigned Medicare billing, Indiana enrollment
- 214 clinicians in this Medicare group
Corydon, IN 47112
- Reassigned Medicare billing, Indiana enrollment
- 107 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
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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Northwest Health - Starke
Acute Care Hospitals · Knox, INPulaski Memorial Hospital
Critical Access Hospitals · Winamac, INFranciscan Health Rensselaer, Inc
Critical Access Hospitals · Rensselaer, INPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 46360 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.
MICHIGAN CITY, IN 46360
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 Donald Greer's NPI number?
The NPI number for Donald Greer is 1013606011. It was assigned to this individual provider in the NPPES registry on May 4, 2023.
Where is Donald Greer located?
Donald Greer practices at 3500 Franciscan Way, Michigan City, IN 46360. The listed phone number is (219) 879-8511.
What is Donald Greer's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.
Is Donald Greer enrolled in Medicare?
Yes. Donald Greer 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 Donald Greer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Donald Greer reassigns Medicare benefits to 5 organizations: Shifa Clinic, P.C. (Valparaiso, IN), Pulaski Memorial Hospital (Knox, IN), Franciscan Physician Network (Mishawaka, IN), Clarksville Emergency Group, PC (Corydon, IN) and Clarksville Physician Services PC (Corydon, IN). 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 Donald Greer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Donald Greer accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and CareSource list Donald Greer 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 Donald Greer affiliated with any hospitals?
According to CMS data, Donald Greer is affiliated with Northwest Health - Starke, Pulaski Memorial Hospital and Franciscan Health Rensselaer, Inc.
When was this NPI record last updated?
The NPPES record for Donald Greer was last updated on October 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.
# Donald Ernest Greer Jr. · NPI 1013606011
Family physician in Michigan City, Indiana. Individual provider, active in the CMS NPPES registry since May 4, 2023.
## Identity
- **NPI:** 1013606011 (Entity type: Individual)
- **Enumerated:** May 4, 2023
- **Primary specialty:** Nurse Practitioner - Family · taxonomy 363LF0000X
- **State license:** 28200905A (Indiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 3500 FRANCISCAN WAY, Michigan City, IN 46360-0021
- **Phone:** (219) 879-8511
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): Shifa Clinic, P.C. (NPI 1639107790, Valparaiso, IN); Pulaski Memorial Hospital (NPI 1528626652, Knox, IN); Franciscan Physician Network (NPI 1366879009, Mishawaka, IN); Clarksville Emergency Group, PC (NPI 1023487154, Corydon, IN); Clarksville Physician Services PC (NPI 1811629546, Corydon, IN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2023
## Record status
- **NPPES last updated:** October 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1013606011) · Data from the CMS NPPES public registry.