Johns Hopkins University
NPI 1063483659 · Clinical Medical Laboratory · Baltimore, MD
Johns Hopkins University is a Clinical Medical Laboratory organization in Baltimore, MD (NPI 1063483659).
Provider details
- NPI number
- 1063483659
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Parent organization
- Johns Hopkins University
- Organization subpart
- Yes
- Authorized official
- Nicholas Giarratano, Director, Provider Enrollment(410) 933-0000
Specialties & taxonomies
Laboratories
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
5,485 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 3,682 | $74 |
| Antibody Evaluation, Each Additional Single Antibody Stain Procedure88350 | 628 | $115 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 235 | $92 |
| Surgical Pathology Consultation and Report on Referred Slides Prepared Elsewhere88321 | 234 | $99 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 223 | $109 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 153 | $117 |
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Jhu -Derm/Path Lab
- Doing business as
- Jhu -Derm/Path Lab
Additional practice locations (1)
- 601 N Caroline St6th FloorBaltimore, MD 21205-2000Phone: (410) 933-1255
Registry dates
- Enumerated
- 2006-01-31
- Last updated
- 2026-03-18
- Certified
- 2026-03-18
Frequently asked questions
- What is Johns Hopkins University's NPI number?
- Johns Hopkins University's National Provider Identifier (NPI) is 1063483659, 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 Clinical Medical Laboratory (Laboratories).
- 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.
- Who is the authorized official for Johns Hopkins University?
- The authorized official listed on Johns Hopkins University's NPPES record is Nicholas Giarratano, Director, Provider Enrollment. 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 (1063483659) is active in the NPPES registry as of the last update on 2026-03-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.