DR. ERROL LAMONT FIELDS MD, PHD, MPH
NPI 1861620429
Pediatrics - Adolescent Medicine in Baltimore, MD
About Dr. Errol Lamont Fields Md, Phd, Mph NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ERROL LAMONT FIELDS MD, PHD, MPH (NPI 1861620429) is an individual adolescent medicine provider in Baltimore, Maryland, licensed in Maryland (D75087) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS, is affiliated with Johns Hopkins Hospital, The, and is a graduate of Johns Hopkins University School Of Medicine (2009).
NPPES Registry Identity
Specialties & Licenses 3
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. Errol Lamont Fields Md, Phd, Mph is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Errol Fields reassigns Medicare billing to 2 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
- 11 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Johns Hopkins Hospital, The
Acute Care Hospitals · Baltimore, MDMedicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BALTIMORE, MD 21287
BALTIMORE, MD 21287
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 Errol Fields's NPI number?
The NPI number for Errol Fields is 1861620429. It was assigned to this individual provider in the NPPES registry on June 22, 2009.
Where is Errol Fields located?
Errol Fields practices at 200 N Wolfe St, Baltimore, MD 21287. The listed phone number is (410) 955-2795.
What is Errol Fields's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Adolescent Medicine, with taxonomy code 2080A0000X.
Is Errol Fields enrolled in Medicare?
Yes. Errol Fields is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Errol Fields's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Errol Fields reassigns Medicare benefits to 2 organizations: Johns Hopkins University (Baltimore, MD) and Johns Hopkins University (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 Errol Fields's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Errol Fields affiliated with any hospitals?
According to CMS data, Errol Fields is affiliated with Johns Hopkins Hospital, The.
When was this NPI record last updated?
The NPPES record for Errol Fields was last updated on February 27, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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. Errol Lamont Fields, MD, PHD, MPH · NPI 1861620429
Adolescent Medicine physician in Baltimore, Maryland. Individual provider, active in the CMS NPPES registry since June 22, 2009.
## Identity
- **NPI:** 1861620429 (Entity type: Individual)
- **Enumerated:** June 22, 2009
- **Primary specialty:** Pediatrics - Adolescent Medicine · taxonomy 2080A0000X
- **State license:** D75087 (Maryland)
- **Sole proprietor:** No
## Practice location
- **Address:** 200 N WOLFE ST, Baltimore, MD 21287-0011
- **Phone:** (410) 955-2795
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Johns Hopkins University (NPI 1881694453, Baltimore, MD); Johns Hopkins University (NPI 1689131575, Baltimore, MD) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Johns Hopkins University School Of Medicine, class of 2009
## Record status
- **NPPES last updated:** February 27, 2020
- **Other identifiers:** Medicaid 061550100 (MD)
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Source: [NPI Profile](https://npiprofile.com/npi/1861620429) · Data from the CMS NPPES public registry.