THOMAS B. DAY, M.D.,P.A.
NPI 1689727240
Clinic/Center - Medical Specialty in Windsor Mill, MD

Q: What is Thomas B. Day, M.D.,p.A.'s NPI number?

The NPI number for Thomas B. Day, M.D.,p.A. is 1689727240. It was assigned to this organization in the NPPES registry on January 18, 2007.

Q: What is Thomas B. Day, M.D.,p.A.'s specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Medical Specialty, with taxonomy code 261QM2500X.

Active since January 18, 2007

7001 JOHNNYCAKE RD STE 104, WINDSOR MILL, MD 21244(410) 747-4711(410) 747-4766 Get Directions Write a Review

NPPES record last updated: March 7, 2023. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 7, 2023, Jun 10, 2019 (2 updates tracked since 2019).

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About Thomas B. Day, M.d.,p.a. NPPES

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

THOMAS B. DAY, M.D.,P.A. (NPI 1689727240) is a healthcare organization registered as a medical specialty in Windsor Mill, Maryland and active in the NPI registry since January 2007. The organization lists Thomas Baker Day, President, as its authorized official.

NPPES Registry Identity

NPI1689727240

Entity TypeOrganization

Primary Taxonomy261QM2500X

Legal Business NameTHOMAS B. DAY, M.D.,P.A.

Location Address7001 JOHNNYCAKE RD STE 104Windsor Mill, MD 21244-2419

Mailing AddressPo Box 47756Windsor Mill, MD 21244-0756 · (410) 747-4711 · Fax (410) 747-4766

Phone(410) 747-4711

Fax(410) 747-4766

Organization SubpartNo

Authorized OfficialThomas Baker DayPresident · (410) 747-4711

Enumeration DateJanuary 18, 2007

Last NPPES UpdateMarch 7, 20232 updates tracked since enumeration

✔ NPI 1689727240 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyClinic/Center · Medical SpecialtyAmbulatory Health Care Facilities

Taxonomy Code261QM2500X

Definition

An entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to a specific area of medical specialization. Frequently used for Title V related Children's Specialty services or to meet specific public health needs (e.g., infectious diseases or breast and cervical cancer).

7001 JOHNNYCAKE RD STE 104, Windsor Mill, MD 21244

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Other Identifiers 2

Medicaid5433193P0001MD

OtherM11803MD · Control Drug - Maryland

Other Providers at the Same Location NPPES

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

KENNEDY ONEIKE ONUOHA

Behavior Technician

7001 JOHNNYCAKE RD STE 104
WINDSOR MILL, MD 21244

Baltimore County (410) 774-9840

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 Thomas B. Day, M.D.,p.A.'s NPI number?

The NPI number for Thomas B. Day, M.D.,p.A. is 1689727240. It was assigned to this organization in the NPPES registry on January 18, 2007.

Where is Thomas B. Day, M.D.,p.A. located?

Thomas B. Day, M.D.,p.A. is located at 7001 Johnnycake Rd Ste 104, Windsor Mill, MD 21244. The listed phone number is (410) 747-4711.

What is Thomas B. Day, M.D.,p.A.'s specialty?

The primary specialty registered for this NPI is Clinic/Center, specializing in Medical Specialty, with taxonomy code 261QM2500X.

When was this NPI record last updated?

The NPPES record for Thomas B. Day, M.D.,p.A. was last updated on March 7, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.