Johns Hopkins University
NPI 1225883648 · Hospitalist Physician · Baltimore, MD
Enrolled with Medicare as Part B Supplier - Hospital Department(s) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Johns Hopkins University is a Hospitalist Physician organization in Baltimore, MD (NPI 1225883648).
Provider details
- NPI number
- 1225883648
- Entity type
- Organization
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Parent organization
- Johns Hopkins University
- Organization subpart
- Yes
- Authorized official
- Nicholas Giarratano, Manager , Peu(410) 933-1210
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Jhu-Oncology/Hospitalist
Registry dates
- Enumerated
- 2024-04-19
- Last updated
- 2025-12-03
- Certified
- 2025-12-03
Frequently asked questions
- What is Johns Hopkins University's NPI number?
- Johns Hopkins University's National Provider Identifier (NPI) is 1225883648, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Johns Hopkins University?
- Johns Hopkins University is classified in the NPPES registry as Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Johns Hopkins University located?
- Johns Hopkins University's practice location on file with NPPES is 600 N Wolfe St, Baltimore, MD 21287-0005.
- What is Johns Hopkins University's phone number?
- The practice phone number listed in the NPPES registry for Johns Hopkins University is (410) 955-5000.
- Does Johns Hopkins University accept Medicare?
- Johns Hopkins University is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Johns Hopkins University?
- The authorized official listed on Johns Hopkins University's NPPES record is Nicholas Giarratano, Manager , Peu. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Johns Hopkins University's NPI active?
- Yes — Johns Hopkins University's NPI (1225883648) is active in the NPPES registry as of the last update on 2025-12-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.