DR. PETER V JOHNSTON MD
NPI 1629128830
Internal Medicine - Interventional Cardiology in Baltimore, MD
About Dr. Peter V Johnston Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. PETER V JOHNSTON MD (NPI 1629128830) is an individual interventional cardiology provider in Baltimore, Maryland, licensed in Maryland (D65567) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of University Of Michigan Medical School (2000).
NPPES Registry Identity
Specialties & Licenses 2
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 (PECOS)
Dr. Peter V Johnston Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Peter Johnston reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Baltimore, MD 21287
- Reassigned Medicare billing, Maryland enrollment
- 4,483 clinicians in this Medicare group
Baltimore, MD 21287
- Reassigned Medicare billing, Maryland enrollment
- 15 clinicians in this Medicare group
Baltimore, MD 21287
- Reassigned Medicare billing, Maryland enrollment
- 38 clinicians in this Medicare group
Baltimore, MD 21204
- Reassigned Medicare billing, Maryland enrollment
- 444 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 13
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 3
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, MDJohns Hopkins Howard County Medical Center
Acute Care Hospitals · Columbia, MDPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 21287 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Peter Johnston's NPI number?
The NPI number for Peter Johnston is 1629128830. It was assigned to this individual provider in the NPPES registry on January 11, 2007.
Where is Peter Johnston located?
Peter Johnston practices at 600 N Wolfe Street Carnegie 568, Baltimore, MD 21287. The listed phone number is (410) 550-0849.
What is Peter Johnston's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.
Is Peter Johnston enrolled in Medicare?
Yes. Peter Johnston is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Peter Johnston's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Peter Johnston reassigns Medicare benefits to 4 organizations: Johns Hopkins University (Baltimore, MD), Johns Hopkins University (Baltimore, MD), Johns Hopkins University (Baltimore, MD) and Greater Baltimore Medical Center, Inc. (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 Peter Johnston's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Peter Johnston affiliated with any hospitals?
According to CMS data, Peter Johnston is affiliated with Johns Hopkins Hospital, The, Johns Hopkins Bayview Medical Center and Johns Hopkins Howard County Medical Center.
When was this NPI record last updated?
The NPPES record for Peter Johnston was last updated on September 21, 2022. 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. Peter V Johnston, MD · NPI 1629128830
Interventional Cardiology physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since January 11, 2007.
## Identity
- **NPI:** 1629128830 (Entity type: Individual)
- **Enumerated:** January 11, 2007
- **Primary specialty:** Internal Medicine - Interventional Cardiology · taxonomy 207RI0011X
- **State license:** D65567 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 600 N WOLFE STREET CARNEGIE 568, Baltimore, MD 21287-0001
- **Phone:** (410) 550-0849
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Johns Hopkins University (NPI 1023018413, Baltimore, MD); Johns Hopkins University (NPI 1881388122, Baltimore, MD); Johns Hopkins University (NPI 1487118048, Baltimore, MD); Greater Baltimore Medical Center, Inc. (NPI 1013739382, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Michigan Medical School, class of 2000
## Record status
- **NPPES last updated:** September 21, 2022
- **Other identifiers:** Medicaid 018134000 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1629128830) · Data from the CMS NPPES public registry.