Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JOHNS HOPKINS UNIVERSITY
NPI 1881678878
Psychologist - Clinical in Baltimore, MD

Active since December 02, 2005
600 N WOLFE ST, BALTIMORE, MD 21287(410) 955-5129 Get Directions Write a Review

NPPES record last updated: October 21, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 23, 2026, Jul 21, 2022, Mar 7, 2021 (3 updates tracked since 2021).

About Johns Hopkins University NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOHNS HOPKINS UNIVERSITY (NPI 1881678878), doing business as Jhu - Psychiatry/phd's, is a healthcare organization registered as a clinical in Baltimore, Maryland and active in the NPI registry since December 2005. The organization maintains a secondary practice location in Baltimore and lists Nicholas Giarratano, Director Provider Enrollment Unit, as its authorized official.

NPPES Registry Identity

NPI1881678878
Entity TypeOrganization
Primary Taxonomy103TC0700X
Legal Business NameJOHNS HOPKINS UNIVERSITY
Location Address600 N WOLFE STBaltimore, MD 21287-0005
Mailing Address6201 Greenleigh AveBaltimore, MD 21220-2004 · (410) 933-6423
Organization SubpartYes
Authorized OfficialNicholas GiarratanoDirector Provider Enrollment Unit · (410) 933-0000
Enumeration DateDecember 2, 2005
Last NPPES UpdateOctober 21, 20263 updates tracked since enumeration
NPPES CertifiedOctober 21, 2026
✔ NPI 1881678878 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code103TC0700X
Definition
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.
Also ListedPsychologistTaxonomy 103T00000X
600 N WOLFE ST, Baltimore, MD 21287

Other Names 1

Doing Business AsJhu - Psychiatry/phd's

Secondary Practice Location 1

Location 15510 Nathan Shock DrBaltimore, MD 21224-6823 · Phone (410) 550-0051

Other Identifiers 2

Medicaid161121600MD
OtherCD6088MD · Rrmc

Medicare Participation & PECOS CMS

Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Johns Hopkins University is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Medicare Revalidation Due Date

Revalidation due by January 31, 2027

Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.

StateEnrollment IDDue date
StateMarylandEnrollment IDO20031215000719Non-DME Part B · Clinic/Group PracticeDue dateJanuary 31, 2027
Source: CMS Revalidation Due Date List, October 2026 release.

Clinicians Billing Medicare Through This Organization

4,467

Medicare enrollment records show 4,467 clinicians reassign Medicare billing to Johns Hopkins University, which bills Medicare for the services they deliver. Of these, 492 practice at this address and 3,151 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 74

Nurse Practitioner534
Anesthesiology309
Certified Registered Nurse Anesthetist (CRNA)299
Pediatric Medicine295
Internal Medicine289
Diagnostic Radiology247
Emergency Medicine169
Psychiatry148
66 other specialties2,177

Nearest to this location (20)

See all 4,467
Obstetrics/Gynecology
NPI 1972189645
600 N WOLFE ST
Baltimore, MD 21287
(410) 955-5000
✔ PECOSSame address
Psychiatry
NPI 1326693722
600 N WOLFE ST
Baltimore, MD 21287
(410) 933-4380
✔ PECOSSame address
Pediatric Medicine
NPI 1669882668
600 N WOLFE ST
Baltimore, MD 21287
(410) 955-5000
✔ PECOSSame address
Cardiovascular Disease (Cardiology)
NPI 1124439682
600 N WOLFE ST
Baltimore, MD 21287
(410) 955-3097
✔ PECOSSame address
Pathology
NPI 1346205044
600 N WOLFE ST
Baltimore, MD 21287
(410) 955-2660
✔ PECOSSame address
Internal Medicine
NPI 1619514478
600 N WOLFE STREET THE JOHNS HOPKINS HOSPITAL
Baltimore, MD 21287
(410) 955-5000
✔ PECOSSame address
Endocrinology
NPI 1467068650
600 N WOLFE ST
Baltimore, MD 21287
(410) 955-5000
✔ PECOS✔ Accepts MedicareSame address
Oral Surgery
NPI 1801159637
600 N WOLFE ST
Baltimore, MD 21287
(410) 955-5000
✔ PECOSSame address
Infectious Disease
NPI 1740244318
600 N WOLFE ST
Baltimore, MD 21287
(410) 955-8470
✔ PECOSSame address
Ophthalmology
NPI 1013984848
600 N WOLFE ST
Baltimore, MD 21287
(410) 955-5000
✔ PECOSSame address
Certified Registered Nurse Anesthetist (CRNA)
NPI 1609242866
600 N WOLFE ST
Baltimore, MD 21287
(410) 955-5000
✔ Accepts MedicareSame address
Medical Oncology
NPI 1457989360
600 N WOLFE ST
Baltimore, MD 21287
(410) 933-4380
✔ PECOSSame address
Critical Care (Intensivists)
NPI 1679899058
600 N WOLFE ST CMSC 2-124
Baltimore, MD 21287
(410) 955-2727
✔ PECOSSame address
Neurology
NPI 1326270174
600 N WOLFE STREET PATHOLOGY 627
Baltimore, MD 21287
(410) 614-1522
✔ PECOSSame address
Optometry
NPI 1215421482
600 N WOLFE ST
Baltimore, MD 21287
(410) 955-8893
✔ PECOSSame address
Diagnostic Radiology
NPI 1174197644
600 N WOLFE ST
Baltimore, MD 21287
(410) 955-5000
✔ PECOSSame address
Nurse Practitioner
NPI 1861526766
600 N WOLFE ST MEYER 7-109
Baltimore, MD 21287
(443) 287-4932
✔ PECOSSame address
General Surgery
NPI 1952354383
600 N WOLFE ST
Baltimore, MD 21287
(410) 955-5464
✔ PECOSSame address
Anesthesiology
NPI 1639137664
600 N WOLFE ST
Baltimore, MD 21287
(410) 955-9441
✔ PECOSSame address
Rheumatology
NPI 1811949704
600 N WOLFE ST
Baltimore, MD 21287
(410) 955-3052
✔ PECOSSame address
See all 4,467 clinicians

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Johns Hopkins University's NPI number?

The NPI number for Johns Hopkins University is 1881678878. It was assigned to this organization in the NPPES registry on December 2, 2005. The provider is doing business as Jhu - Psychiatry/Phd's.

Where is Johns Hopkins University located?

Johns Hopkins University is located at 600 N Wolfe St, Baltimore, MD 21287. The listed phone number is (410) 955-5129.

What is Johns Hopkins University's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Johns Hopkins University enrolled in Medicare?

Yes. Johns Hopkins University is registered in the Medicare PECOS enrollment system.

When is Johns Hopkins University's Medicare revalidation due?

According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (Maryland, Clinic/Group Practice) is due for revalidation by January 31, 2027. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.

How many clinicians bill Medicare through Johns Hopkins University?

According to the CMS Revalidation Reassignment List (October 2026 release), 4,467 clinicians in 74 Medicare specialties reassign their Medicare billing to Johns Hopkins University. A 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 the clinician's services. The largest specialties are Nurse Practitioner (534), Anesthesiology (309) and Certified Registered Nurse Anesthetist (CRNA) (299). Of these, 492 practice at this address and 3,151 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Johns Hopkins University was last updated on October 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 days 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.