DR. KALYANAKRISHNAN RAMAKRISHNAN M.D.
NPI 1861468951
Family Medicine in Oklahoma City, OK
About Dr. Kalyanakrishnan Ramakrishnan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KALYANAKRISHNAN RAMAKRISHNAN M.D. (NPI 1861468951) is an individual family medicine provider in Oklahoma City, Oklahoma, licensed in Oklahoma (18709) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with O U Medical Center, and is a graduate of Other (1976).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
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. Kalyanakrishnan Ramakrishnan 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
2Medicare enrollment records show Kalyanakrishnan Ramakrishnan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Oklahoma City, OK 73104
- Reassigned Medicare billing, Oklahoma enrollment
- 845 clinicians in this Medicare group
Oklahoma City, OK 73104
- Reassigned Medicare billing, Oklahoma enrollment
- 1,795 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
O U Medical Center
Acute Care Hospitals · Oklahoma City, OKPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 73104 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 3
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.
OKLAHOMA CITY, OK 73104
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 Kalyanakrishnan Ramakrishnan's NPI number?
The NPI number for Kalyanakrishnan Ramakrishnan is 1861468951. It was assigned to this individual provider in the NPPES registry on February 27, 2006.
Where is Kalyanakrishnan Ramakrishnan located?
Kalyanakrishnan Ramakrishnan practices at 900 NE 10th St, Oklahoma City, OK 73104. The listed phone number is (405) 271-4311.
What is Kalyanakrishnan Ramakrishnan's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Kalyanakrishnan Ramakrishnan enrolled in Medicare?
Yes. Kalyanakrishnan Ramakrishnan 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 Kalyanakrishnan Ramakrishnan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kalyanakrishnan Ramakrishnan reassigns Medicare benefits to 2 organizations: Board Of Regents Of The University Of Oklahoma - Ou Physicians (Oklahoma City, OK) and Ou Health Partners, Inc (Oklahoma City, OK). 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 Kalyanakrishnan Ramakrishnan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Kalyanakrishnan Ramakrishnan affiliated with any hospitals?
According to CMS data, Kalyanakrishnan Ramakrishnan is affiliated with O U Medical Center.
When was this NPI record last updated?
The NPPES record for Kalyanakrishnan Ramakrishnan was last updated on November 12, 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.
# Dr. Kalyanakrishnan Ramakrishnan, M.D. · NPI 1861468951
Family Medicine physician in Oklahoma City, Oklahoma. Individual provider, active in the CMS NPPES registry since February 27, 2006.
## Identity
- **NPI:** 1861468951 (Entity type: Individual)
- **Enumerated:** February 27, 2006
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 18709 (Oklahoma)
- **Sole proprietor:** No
## Practice location
- **Address:** 900 NE 10TH ST, Oklahoma City, OK 73104-5420
- **Phone:** (405) 271-4311
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Board Of Regents Of The University Of Oklahoma - Ou Physicians (NPI 1801869250, Oklahoma City, OK); Ou Health Partners, Inc (NPI 1528642642, Oklahoma City, OK) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1976
## Record status
- **NPPES last updated:** November 12, 2021
- **Other identifiers:** Medicaid 10014870B (OK)
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Source: [NPI Profile](https://npiprofile.com/npi/1861468951) · Data from the CMS NPPES public registry.