ANNE GREIST MD
NPI 1063477073
Internal Medicine - Hematology & Oncology in Indianapolis, IN
About Anne Greist Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANNE GREIST MD (NPI 1063477073) is an individual hematology & oncology provider in Indianapolis, Indiana, licensed in Indiana (01033362A) and active in the NPI registry since April 2006. She is enrolled in Medicare PECOS, is affiliated with Indiana University Health, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 4
Secondary Practice Locations 2
Other Identifiers 3
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
Anne Greist Md 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
4Medicare enrollment records show Anne Greist reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Indianapolis, IN 46260
- Reassigned Medicare billing, Indiana enrollment
- 45 clinicians in this Medicare group
Indianapolis, IN 46260
- Reassigned Medicare billing, Indiana enrollment
- 41 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 5,212 clinicians in this Medicare group
Indianapolis, IN 46202
- Reassigned Medicare billing, Indiana enrollment
- 358 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Indiana University Health
Acute Care Hospitals · Indianapolis, INPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 46260 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
INDIANAPOLIS, IN 46260
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 Anne Greist's NPI number?
The NPI number for Anne Greist is 1063477073. It was assigned to this individual provider in the NPPES registry on April 20, 2006.
Where is Anne Greist located?
Anne Greist practices at 8326 Naab Rd, Indianapolis, IN 46260. The listed phone number is (317) 871-0000.
What is Anne Greist's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Anne Greist enrolled in Medicare?
Yes. Anne Greist 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 Anne Greist's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Anne Greist reassigns Medicare benefits to 4 organizations: Innovative Hematology, Inc (Indianapolis, IN), Indiana Hemophilia & Thrombosis Center, Inc. (Indianapolis, IN), Iu Health Medical Group, LLC (Indianapolis, IN) and University Medical Diagnostic Associates, Inc. (Indianapolis, 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 Anne Greist's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Anne Greist accept?
Health plans from Anthem Blue Cross and Blue Shield list Anne Greist 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 Anne Greist affiliated with any hospitals?
According to CMS data, Anne Greist is affiliated with Indiana University Health.
When was this NPI record last updated?
The NPPES record for Anne Greist was last updated on March 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 months 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.
# Anne Greist, MD · NPI 1063477073
Hematology & Oncology physician in Indianapolis, Indiana. Individual provider, active in the CMS NPPES registry since April 20, 2006.
## Identity
- **NPI:** 1063477073 (Entity type: Individual)
- **Enumerated:** April 20, 2006
- **Primary specialty:** Internal Medicine - Hematology & Oncology · taxonomy 207RH0003X
- **State license:** 01033362A (Indiana)
- **Sole proprietor:** No
## Practice location
- **Address:** 8326 NAAB RD, Indianapolis, IN 46260-1920
- **Phone:** (317) 871-0000 · **Fax:** (317) 871-0010
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Innovative Hematology, Inc (NPI 1881455541, Indianapolis, IN); Indiana Hemophilia & Thrombosis Center, Inc. (NPI 1659364800, Indianapolis, IN); Iu Health Medical Group, LLC (NPI 1326893777, Indianapolis, IN); University Medical Diagnostic Associates, Inc. (NPI 1861441537, Indianapolis, IN) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1977
## Record status
- **NPPES last updated:** March 8, 2025
- **Other identifiers:** Other 000000295113 (IN); Other 830005880 (IN); Medicaid 100236530 (IN)
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Source: [NPI Profile](https://npiprofile.com/npi/1063477073) · Data from the CMS NPPES public registry.