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MARY KATHRYN HANNAN M.D.
NPI 1851787824
Internal Medicine in Washington, DC

Active since April 07, 2015PECOS Enrolled
RED TEAM PRIMARY CARE, 50 IRVING STREET NW, WASHINGTON, DC 20422(202) 745-8000(202) 518-4880 Get Directions Write a Review

NPPES record last updated: September 21, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Oct 12, 2018, May 18, 2018 (2 updates tracked since 2018).

About Mary Kathryn Hannan M.d. NPPES

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

MARY KATHRYN HANNAN M.D. (NPI 1851787824) is an individual internal medicine provider in Washington, District Of Columbia, licensed in Massachusetts (276673) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1851787824
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameMARY KATHRYN HANNANCredential: M.D.
Location AddressRED TEAM PRIMARY CARE, 50 IRVING STREET NWWashington, DC 20422
Mailing AddressRed Team Primary Care, 50 Irving Street NwWashington, DC 20422 · (202) 745-8000 · Fax (202) 518-4880
Phone(202) 745-8000
Fax(202) 518-4880
Sole ProprietorYes
Enumeration DateApril 7, 2015
Last NPPES UpdateSeptember 21, 20232 updates tracked since enumeration
NPPES CertifiedSeptember 21, 2023
✔ NPI 1851787824 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in MA · 276673
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
RED TEAM PRIMARY CARE, Washington, DC 20422
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Other Names 1

Other Name (5)Mary Kathryn Hannan Nelson Md

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Kathryn Hannan M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 20422 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$147.85 typical visit price
range $65.18 – $194.86
Typical copayment $36.96 (range $16.29 – $48.71)
Most-billed visit code 99204
Established Patient
$113.72 typical visit price
range $21.40 – $158.88
Typical copayment $28.43 (range $5.35 – $39.72)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Mary Hannan's NPI number?

The NPI number for Mary Hannan is 1851787824. It was assigned to this individual provider in the NPPES registry on April 7, 2015. The provider is also known as Mary Kathryn Hannan Nelson MD.

Where is Mary Hannan located?

Mary Hannan practices at Red Team Primary Care 50 Irving Street NW, Washington, DC 20422. The listed phone number is (202) 745-8000.

What is Mary Hannan's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mary Hannan enrolled in Medicare?

Yes. Mary Hannan is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mary Hannan was last updated on September 21, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.