NPPES file of Aug 9, 2026

Tristan Michael Flack, D.O.

Internal Medicine Physician · Baltimore, MD

Tristan Michael Flack, D.O. is an internal medicine physician with a practice address in Baltimore, Maryland, and NPI 1750720074, issued on Jun 19, 2013. Check the license on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1750720074
Name
Tristan Michael Flack
Credential
D.O.
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
284245 NY
Self-reported in NPPES; status is on the state search
Practice location
6701 N Charles St, Baltimore, MD 21204
Phone
(443) 849-2682
Enumerated
Jun 19, 2013
Record last updated
Aug 30, 2018 (not updated in 8 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20180918003035); accepts Medicare assignment
Medical or professional school
West Virginia School Of Osteopathic Medicine, 2013
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 6701 N Charles St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Oluyemi Abiodun, MDInternal Medicine Physician1942628060
  2. Elias Abras, MDEmergency Medicine Physician1033156856
  3. Peter Allinson, M.D.Undersea and Hyperbaric Medicine (Preventive Medicine) Physician1609967983
  4. Ann Anderson, PAPhysician Assistant1902962442
  5. Elizabeth Aquino, CRNPAdult Health Nurse Practitioner1255718870
  6. Alicia Arbaje, M.D.Internal Medicine Physician1962567784

Verify Tristan Michael Flack in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMaryland Board of PhysiciansCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Maryland license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through one group practice

  1. Greater Baltimore Medical Center IncBaltimore, MD

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Tristan Michael Flack among 3,904 internal medicine physician records in Maryland

Tristan Michael Flack, D.O. is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 72% of them.

  • NPI issued2013 · 72% of these records are older, 26% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2013 · median 2003 among the 2,445 with a school on file
  • Record last updated2018 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1,278 internal medicine physician records list a practice address in Baltimore

They are 1,278 of the 35,183 NPPES records with a practice address in Baltimore, and 3,904 internal medicine physician records in Maryland.

The 8 internal medicine physician records with the nearest ZIP codes

  1. David Boersma, M.D.Towson, MD 212041235117219
  2. Jeffrey Briggs, M.D.Baltimore, MD 212041063491371
  3. Pauline Daley Richards, M.D.Baltimore, MD 212041174504864
  4. Iris Davis, MDBaltimore, MD 212041588654297
  5. Vincent Dipietro, M.D.Towson, MD 212041619948791
  6. Donna Dow, M.D.Towson, MD 212041821096355
  7. Pochna Kahle, M.D.Towson, MD 212041417949298
  8. Amit Khosla, M.D.Towson, MD 212041225035165

Common questions

What is Tristan Michael Flack, D.O.'s NPI number?

Tristan Michael Flack, D.O.'s National Provider Identifier (NPI) is 1750720074, issued on Jun 19, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Tristan Michael Flack, D.O. located?

The NPPES record lists a practice address at 6701 N Charles St, Baltimore, MD, 21204. Phone: (443) 849-2682. Providers update this record themselves, so call before visiting.

How can I verify Tristan Michael Flack, D.O.'s license?

Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.