SINA KARIMPOUR DO
NPI 1104246081
Hospitalist in Grand Rapids, MI
About Sina Karimpour Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SINA KARIMPOUR DO (NPI 1104246081) is an individual hospitalist provider in Grand Rapids, Michigan, licensed in New York (310403) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, is affiliated with Kaleida Health, and is a graduate of Other (2014).
NPPES Registry Identity
Specialties & Licenses 2
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
Sina Karimpour 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.
Medicare Billing Reassignments
8Medicare enrollment records show Sina Karimpour reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Dunkirk, NY 14048
- Reassigned Medicare billing, New York enrollment
- 572 clinicians in this Medicare group
Amherst, NY 14228
- Reassigned Medicare billing, New York enrollment
- 106 clinicians in this Medicare group
Williamsville, NY 14221
- Reassigned Medicare billing, New York enrollment
- 104 clinicians in this Medicare group
Batavia, NY 14020
- Reassigned Medicare billing, New York enrollment
- 782 clinicians in this Medicare group
Rochester, NY 14624
- Reassigned Medicare billing, New York enrollment
- 1,442 clinicians in this Medicare group
Rochester, NY 14626
- Reassigned Medicare billing, New York enrollment
- 2,285 clinicians in this Medicare group
Clifton Springs, NY 14432
- Reassigned Medicare billing, New York enrollment
- 872 clinicians in this Medicare group
Newark, NY 14513
- Reassigned Medicare billing, New York enrollment
- 679 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 4
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.
Kaleida Health
Acute Care Hospitals · Buffalo, NYOlean General Hospital
Acute Care Hospitals · Olean, NYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 49503 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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.
GRAND RAPIDS, MI 49503
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 Sina Karimpour's NPI number?
The NPI number for Sina Karimpour is 1104246081. It was assigned to this individual provider in the NPPES registry on April 18, 2014.
Where is Sina Karimpour located?
Sina Karimpour practices at 100 Michigan St NE, Grand Rapids, MI 49503. The listed phone number is (616) 391-3139.
What is Sina Karimpour's specialty?
The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.
Is Sina Karimpour enrolled in Medicare?
Yes. Sina Karimpour 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 Sina Karimpour's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sina Karimpour reassigns Medicare benefits to 8 organizations: General Physician, PC (Dunkirk, NY), Infinity Medical Group P.C. (Amherst, NY), Infinity Medical Of Wny PC (Williamsville, NY), United Memorial Medical Center (Batavia, NY), The Unity Hospital Of Rochester (Rochester, NY) 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 Sina Karimpour's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Sina Karimpour affiliated with any hospitals?
According to CMS data, Sina Karimpour is affiliated with Kaleida Health and Olean General Hospital.
When was this NPI record last updated?
The NPPES record for Sina Karimpour was last updated on December 28, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Sina Karimpour, DO · NPI 1104246081
Hospitalist physician in Grand Rapids, Michigan. Individual provider, active in the CMS NPPES registry since April 18, 2014.
## Identity
- **NPI:** 1104246081 (Entity type: Individual)
- **Enumerated:** April 18, 2014
- **Primary specialty:** Hospitalist · taxonomy 208M00000X
- **State license:** 310403 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 100 MICHIGAN ST NE, Grand Rapids, MI 49503-2560
- **Phone:** (616) 391-3139
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 8 organizations under Medicare reassignment (form CMS-855R): General Physician, PC (NPI 1093959322, Dunkirk, NY); Infinity Medical Group P.C. (NPI 1841648011, Amherst, NY); Infinity Medical Of Wny PC (NPI 1568883080, Williamsville, NY); United Memorial Medical Center (NPI 1508260704, Batavia, NY); The Unity Hospital Of Rochester (NPI 1720471246, Rochester, NY); and 3 more · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** December 28, 2021
---
Source: [NPI Profile](https://npiprofile.com/npi/1104246081) · Data from the CMS NPPES public registry.