AMBALLUR JOHN M.D.
NPI 1932156130
Anesthesiology - Pain Medicine in Baltimore, MD
About Amballur John M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
AMBALLUR JOHN M.D. (NPI 1932156130) is an individual pain medicine provider in Baltimore, Maryland, licensed in Maryland (D59050) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Bayview Medical Center, and is a graduate of New York Medical College (1990).
NPPES Registry Identity
Specialties & Licenses 3
Other Identifiers 3
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Amballur John M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Amballur John reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Baltimore, MD 21224
- Reassigned Medicare billing, Maryland enrollment
- 4,483 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 6
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.
Johns Hopkins Bayview Medical Center
Acute Care Hospitals · Baltimore, MDMedicare 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.
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 Amballur John's NPI number?
The NPI number for Amballur John is 1932156130. It was assigned to this individual provider in the NPPES registry on May 31, 2006.
Where is Amballur John located?
Amballur John practices at 4940 Eastern Ave, Baltimore, MD 21224. The listed phone number is (410) 955-6353.
What is Amballur John's specialty?
The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.
Is Amballur John enrolled in Medicare?
Yes. Amballur John is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Amballur John's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Amballur John reassigns Medicare benefits to Johns Hopkins University (Baltimore, MD). The 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 Amballur John's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Amballur John affiliated with any hospitals?
According to CMS data, Amballur John is affiliated with Johns Hopkins Bayview Medical Center.
When was this NPI record last updated?
The NPPES record for Amballur John was last updated on February 22, 2013. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.
# Amballur John, M.D. · NPI 1932156130
Pain Medicine physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since May 31, 2006.
## Identity
- **NPI:** 1932156130 (Entity type: Individual)
- **Enumerated:** May 31, 2006
- **Primary specialty:** Anesthesiology - Pain Medicine · taxonomy 207LP2900X
- **State license:** D59050 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 4940 EASTERN AVE, Baltimore, MD 21224-2735
- **Phone:** (410) 955-6353
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Johns Hopkins University (NPI 1306810619, Baltimore, MD), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** New York Medical College, class of 1990
## Record status
- **NPPES last updated:** February 22, 2013
- **Other identifiers:** Medicare PIN KR79E006 (MD); Medicaid 400294600 (MD); Medicare UPIN G13249 (MD)
---
Source: [NPI Profile](https://npiprofile.com/npi/1932156130) · Data from the CMS NPPES public registry.