Johns Hopkins University
NPI 1306810619 · Clinical Medical Laboratory · Baltimore, MD
Johns Hopkins University is a Clinical Medical Laboratory organization in Baltimore, MD (NPI 1306810619).
Provider details
- NPI number
- 1306810619
- Entity type
- Organization
- Primary specialty
- Clinical Medical LaboratoryLaboratories
- Parent organization
- Johns Hopkins University
- Organization subpart
- Yes
- Authorized official
- Nicholas Giarratano, Pes(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
1,347 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) |
|---|---|---|
| Measurement of Antibody (ige) to Allergic Substance, Crude Allergen Extract, Each86003 | 1,322 | $5 |
| Ige (immune System Protein) Level82785 | 25 | $16 |
Typical Medicare-allowed amounts for these services range $5–$16 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Jhu - Daci Allergy Lab
- Doing business as
- Jhu - Daci Allergy Lab
Additional practice locations (1)
- 600 N Wolfe StBaltimore, MD 21287-0005Phone: (410) 955-5000
Registry dates
- Enumerated
- 2006-02-14
- 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 1306810619, 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 5501 Hopkins Bayview Cir, Baltimore, MD 21224-6821.
- What is Johns Hopkins University's phone number?
- The practice phone number listed in the NPPES registry for Johns Hopkins University is (410) 550-3362.
- Who is the authorized official for Johns Hopkins University?
- The authorized official listed on Johns Hopkins University's NPPES record is Nicholas Giarratano, Pes. 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 (1306810619) 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.