DR. AMBUJAM R KRISHNAN MD
NPI 1548231749
Internal Medicine - Hematology & Oncology in Livonia, MI
About Dr. Ambujam R Krishnan Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. AMBUJAM R KRISHNAN MD (NPI 1548231749) is an individual hematology & oncology provider in Livonia, Michigan, licensed in Michigan (AK043104) and active in the NPI registry since January 2006. She is enrolled in Medicare PECOS, is affiliated with St Joe Mercy Hospital System Livonia, and is a graduate of Other (1974).
NPPES Registry Identity
Specialties & Licenses
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. Ambujam R Krishnan 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 Ambujam Krishnan reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Livonia, MI 48154
- Reassigned Medicare billing, Michigan enrollment
- 4 clinicians in this Medicare group
Livonia, MI 48154
- Reassigned Medicare billing, Michigan enrollment
- 2 clinicians in this Medicare group
Farmington Hills, MI 48334
- Reassigned Medicare billing, Michigan enrollment
- 14 clinicians in this Medicare group
Troy, MI 48085
- Reassigned Medicare billing, Michigan enrollment
- 3 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 2
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.
St Joe Mercy Hospital System Livonia
Acute Care Hospitals · Livonia, MIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 48154 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 4
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 4
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 Ambujam Krishnan's NPI number?
The NPI number for Ambujam Krishnan is 1548231749. It was assigned to this individual provider in the NPPES registry on January 27, 2006.
Where is Ambujam Krishnan located?
Ambujam Krishnan practices at 15645 Farmington Rd, Livonia, MI 48154. The listed phone number is (734) 464-7600.
What is Ambujam Krishnan's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology & Oncology, with taxonomy code 207RH0003X.
Is Ambujam Krishnan enrolled in Medicare?
Yes. Ambujam Krishnan 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 Ambujam Krishnan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ambujam Krishnan reassigns Medicare benefits to 4 organizations: American Visiting Providers PLLC (Livonia, MI), Comprehensive Healthcare Associates And Prevention Medicine PC (Livonia, MI), Vps Of Mi PLLC (Farmington Hills, MI) and Wound Care Solutions PLLC (Troy, MI). 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 Ambujam Krishnan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ambujam Krishnan accept?
Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter from Meridian, Blue Care Network of Michigan and Blue Cross Blue Shield of Michigan Mutual Insurance Company and 2 other insurers list Ambujam Krishnan 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 Ambujam Krishnan affiliated with any hospitals?
According to CMS data, Ambujam Krishnan is affiliated with St Joe Mercy Hospital System Livonia.
When was this NPI record last updated?
The NPPES record for Ambujam Krishnan was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.