RAENA HARIHARAN M.D.
NPI 1235517798
Internal Medicine in Baltimore, MD
About Raena Hariharan M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RAENA HARIHARAN M.D. (NPI 1235517798) is an individual internal medicine provider in Baltimore, Maryland, licensed in Maryland (D85857) and active in the NPI registry since May 2015. She is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and maintains a secondary practice location in Washington.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 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
Raena Hariharan 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
3Medicare enrollment records show Raena Hariharan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21224
- Reassigned Medicare billing, Maryland enrollment
- 4,483 clinicians in this Medicare group
Baltimore, MD 21287
- Reassigned Medicare billing, District of Columbia and Maryland enrollments
- Also billed through NPI 1124629837 (Maryland)
- 691 clinicians in this Medicare group
Baltimore, MD 21287
- Reassigned Medicare billing, Maryland enrollment
- 338 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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Johns Hopkins Hospital, The
Acute Care Hospitals · Baltimore, MDJohns Hopkins Bayview Medical Center
Acute Care Hospitals · Baltimore, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21224 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 5
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.
BALTIMORE, MD 21224
BALTIMORE, MD 21224
BALTIMORE, MD 21224
BALTIMORE, MD 21224
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 Raena Hariharan's NPI number?
The NPI number for Raena Hariharan is 1235517798. It was assigned to this individual provider in the NPPES registry on May 15, 2015.
Where is Raena Hariharan located?
Raena Hariharan practices at 4940 Eastern Ave, Baltimore, MD 21224. The listed phone number is (410) 550-3350.
What is Raena Hariharan's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Raena Hariharan enrolled in Medicare?
Yes. Raena Hariharan 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 Raena Hariharan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Raena Hariharan reassigns Medicare benefits to 3 organizations: Johns Hopkins University (Baltimore, MD), Johns Hopkins Community Physicians, Inc (Baltimore, MD) and Johns Hopkins University (Baltimore, MD). 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 Raena Hariharan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Raena Hariharan affiliated with any hospitals?
According to CMS data, Raena Hariharan is affiliated with Johns Hopkins Hospital, The and Johns Hopkins Bayview Medical Center.
When was this NPI record last updated?
The NPPES record for Raena Hariharan was last updated on February 11, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Raena Hariharan, M.D. · NPI 1235517798
Internal Medicine physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since May 15, 2015.
## Identity
- **NPI:** 1235517798 (Entity type: Individual)
- **Enumerated:** May 15, 2015
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** D85857 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 4940 EASTERN AVE, Baltimore, MD 21224
- **Phone:** (410) 550-3350 · **Fax:** (410) 550-0491
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Johns Hopkins University (NPI 1275515546, Baltimore, MD); Johns Hopkins Community Physicians, Inc (NPI 1255359972, Baltimore, MD); Johns Hopkins University (NPI 1902332133, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Medical University Of South Carolina College Of Medicine, class of 2015
## Record status
- **NPPES last updated:** February 11, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1235517798) · Data from the CMS NPPES public registry.