KAREN J. GREEN M.D.
NPI 1659669646
Family Medicine in Detroit, MI
About Karen J. Green M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KAREN J. GREEN M.D. (NPI 1659669646) is an individual family medicine provider in Detroit, Michigan, licensed in Ohio (35.124259) and active in the NPI registry since July 2011. She is enrolled in Medicare PECOS, is affiliated with Adena Regional Medical Center, and maintains a secondary practice location in Logan.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
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
Karen J. Green M.d. 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
13Medicare enrollment records show Karen Green reassigns Medicare billing to 13 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Toledo, OH 43608
- Reassigned Medicare billing, Ohio enrollment
- 277 clinicians in this Medicare group
Flint, MI 48532
- Reassigned Medicare billing, Michigan enrollment
- 444 clinicians in this Medicare group
Napoleon, OH 43545
- Reassigned Medicare billing, Ohio enrollment
- 36 clinicians in this Medicare group
Saginaw, MI 48601
- Reassigned Medicare billing, Michigan enrollment
- 168 clinicians in this Medicare group
Bryan, OH 43506
- Reassigned Medicare billing, Ohio enrollment
- 57 clinicians in this Medicare group
Dublin, OH 43017
- Reassigned Medicare billing, Ohio enrollment
- 177 clinicians in this Medicare group
Columbus, OH 43215
- Reassigned Medicare billing, Ohio enrollment
- 474 clinicians in this Medicare group
Chillicothe, OH 45601
- Reassigned Medicare billing, Ohio enrollment
- 99 clinicians in this Medicare group
Seaman, OH 45679
- Reassigned Medicare billing, Ohio enrollment
- 894 clinicians in this Medicare group
Ashland, KY 41101
- Reassigned Medicare billing, Kentucky enrollment
- 38 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 5
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 4
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Adena Regional Medical Center
Acute Care Hospitals · Chillicothe, OHHocking Valley Community Hospital
Critical Access Hospitals · Logan, OHAdena Fayette Medical Center
Critical Access Hospitals · Washington Ch, OHHighland District Hospital
Critical Access Hospitals · Hillsboro, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48202 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 Karen Green's NPI number?
The NPI number for Karen Green is 1659669646. It was assigned to this individual provider in the NPPES registry on July 12, 2011.
Where is Karen Green located?
Karen Green practices at 2799 W Grand Blvd, Detroit, MI 48202. The listed phone number is (313) 916-2600.
What is Karen Green's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Karen Green enrolled in Medicare?
Yes. Karen Green 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 Karen Green's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Karen Green reassigns Medicare benefits to 13 organizations: Mercy Emergency Care Services, Inc. (Toledo, OH), Mclaren Hospital Group (Flint, MI), Ashland Emergency Group LLC (Napoleon, OH), Cep America LLC (Saginaw, MI), Williams Emergency Group, LLC (Bryan, OH) and 8 more organizations, listed in the Medicare section above. 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 Karen Green's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Karen Green accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Anthem Blue Cross and Blue Shield and Blue Care Network of Michigan and 6 other insurers list Karen Green 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 Karen Green affiliated with any hospitals?
According to CMS data, Karen Green is affiliated with Adena Regional Medical Center, Hocking Valley Community Hospital, Adena Fayette Medical Center and Highland District Hospital.
When was this NPI record last updated?
The NPPES record for Karen Green was last updated on April 5, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Karen J. Green, M.D. · NPI 1659669646
Family Medicine physician in Detroit, Michigan. Individual provider, active in the CMS NPPES registry since July 12, 2011.
## Identity
- **NPI:** 1659669646 (Entity type: Individual)
- **Enumerated:** July 12, 2011
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 35.124259 (Ohio)
- **Sole proprietor:** No
## Practice location
- **Address:** 2799 W GRAND BLVD, Detroit, MI 48202-2608
- **Phone:** (313) 916-2600
## 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:** 13 organizations under Medicare reassignment (form CMS-855R): Mercy Emergency Care Services, Inc. (NPI 1477957819, Toledo, OH); Mclaren Hospital Group (NPI 1942026174, Flint, MI); Ashland Emergency Group LLC (NPI 1073246971, Napoleon, OH); Cep America LLC (NPI 1912687328, Saginaw, MI); Williams Emergency Group, LLC (NPI 1609334556, Bryan, OH); and 8 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2011
## Record status
- **NPPES last updated:** April 5, 2024
---
Source: [NPI Profile](https://npiprofile.com/npi/1659669646) · Data from the CMS NPPES public registry.