DR. RAJAN DEWAR M.D., PHD.,
NPI 1306952510
Pathology - Clinical Pathology in Flint, MI
About Dr. Rajan Dewar M.d., Phd., NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. RAJAN DEWAR M.D., PHD., (NPI 1306952510) is an individual clinical pathology provider in Flint, Michigan, licensed in New York (NY-315695-01) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with Sinai-grace Hospital, and maintains a secondary practice location in Ann Arbor.
NPPES Registry Identity
Specialties & Licenses 5
Other Names 1
Secondary Practice Location 1
Other Identifiers 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
Dr. Rajan Dewar M.d., Phd., 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
8Medicare enrollment records show Rajan Dewar reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Clarkston, MI 48346
- Reassigned Medicare billing, Michigan enrollment
- Medicare enrollment name: Michigan Healthcare Professionals PC
- 741 clinicians in this Medicare group
Novi, MI 48377
- Reassigned Medicare billing, Michigan enrollment
- 731 clinicians in this Medicare group
Troy, MI 48084
- Reassigned Medicare billing, Michigan enrollment
- 79 clinicians in this Medicare group
Troy, MI 48084
- Reassigned Medicare billing, Michigan enrollment
- 279 clinicians in this Medicare group
Garden City, MI 48135
- Reassigned Medicare billing, Michigan enrollment
- 12 clinicians in this Medicare group
Toledo, OH 43606
- Reassigned Medicare billing, Michigan and Ohio enrollments
- 36 clinicians in this Medicare group
Naubinway, MI 49762
- Reassigned Medicare billing, Michigan enrollment
- 78 clinicians in this Medicare group
Valhalla, NY 10595
- Reassigned Medicare billing, New York enrollment
- 1,663 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 10
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Sinai-Grace Hospital
Acute Care Hospitals · Detroit, MIHarper University Hospital
Acute Care Hospitals · Detroit, MIDetroit Receiving Hospital
Acute Care Hospitals · Detroit, MIKarmanos Cancer Center
Acute Care Hospitals · Detroit, MIPromedica Toledo Hospital
Acute Care Hospitals · Toledo, OHPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48532 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 4
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
FLINT, MI 48532
FLINT, MI 48532
FLINT, MI 48532
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 Rajan Dewar's NPI number?
The NPI number for Rajan Dewar is 1306952510. It was assigned to this individual provider in the NPPES registry on August 21, 2006. The provider is also known as Dr. Muthumarthanda Rajan Mariappan.
Where is Rajan Dewar located?
Rajan Dewar practices at 3490 Calkins Rd, Flint, MI 48532. The listed phone number is (810) 733-7741.
What is Rajan Dewar's specialty?
The primary specialty registered for this NPI is Pathology, specializing in Clinical Pathology, with taxonomy code 207ZC0006X.
Is Rajan Dewar enrolled in Medicare?
Yes. Rajan Dewar 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 Rajan Dewar's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rajan Dewar reassigns Medicare benefits to 8 organizations: Michigan Healthcare Professionals, P.C. (Clarkston, MI), University Physician Group (Novi, MI), Iah Of Michigan, PLLC (Troy, MI), Vpa PC (Troy, MI), Yourpathologist PLLC (Garden City, MI) and 3 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 Rajan Dewar's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Rajan Dewar accept?
Health plans from Blue Care Network of Michigan, Blue Cross Blue Shield of Michigan Mutual Insurance Company, Priority Health and Taro Health list Rajan Dewar 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 Rajan Dewar affiliated with any hospitals?
According to CMS data, Rajan Dewar is affiliated with Sinai-Grace Hospital, Harper University Hospital, Detroit Receiving Hospital, Karmanos Cancer Center and Promedica Toledo Hospital.
When was this NPI record last updated?
The NPPES record for Rajan Dewar was last updated on March 16, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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. Rajan Dewar, M.D., PHD., · NPI 1306952510
Clinical Pathology physician in Flint, Michigan. Individual provider, active in the CMS NPPES registry since August 21, 2006.
## Identity
- **NPI:** 1306952510 (Entity type: Individual)
- **Enumerated:** August 21, 2006
- **Primary specialty:** Pathology - Clinical Pathology · taxonomy 207ZC0006X
- **State license:** NY-315695-01 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 3490 CALKINS RD, Flint, MI 48532-3506
- **Phone:** (810) 733-7741 · **Fax:** (855) 618-6655
## 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:** 8 organizations under Medicare reassignment (form CMS-855R): Michigan Healthcare Professionals, P.C. (NPI 1154150506, Clarkston, MI); University Physician Group (NPI 1336492354, Novi, MI); Iah Of Michigan, PLLC (NPI 1578969705, Troy, MI); Vpa PC (NPI 1336153295, Troy, MI); Yourpathologist PLLC (NPI 1437907516, Garden City, MI); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1993
## Record status
- **NPPES last updated:** March 16, 2023
- **Other identifiers:** Medicaid 1306952510 (MI)
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Source: [NPI Profile](https://npiprofile.com/npi/1306952510) · Data from the CMS NPPES public registry.