NPI age
19 years
Enumerated 2006-10-16
● Active
Type 1 · Individual
Maryjane A. Farr, MD
Farr is 1 of 22 internal medicine providers in Dallas and 1 of 81 in Texas.
Primary specialty
Internal Medicine
Plus 4 subspecialties
Licensed in
TX, NY, CT
3 states
Status
Active
No deactivations on record
Last NPPES update
2021-09-10
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org
How this provider compares
Across 81 active internal medicine providers in Texas.
NPI age
19 years
↑ 3 yr above median (16 yr)
State licenses
3 states
Top 67% — 32% of peers are multi-state
Subspecialties
2
In the 77% of peers with subspecialties
NPI lifetime · 2006 → 2026
2006-10Enumerated in NPPES
2006
2026
Where they practice
Practice location
5939 Harry Hines Blvd
Dallas, TX 753903720
Mailing address
Po Box 845347
Dallas, TX 752847208
Additional practice locations
2 secondary locations on file with NPPES.
Location 2
622 W 168th St
New York, NY 100323720
Location 3
Wcmg Practice, Danbury Hospital, 24 Hospital Avenue
Danbury, CT 06810
Specialties
-
Internal Medicine PrimarySpecialists in Advanced Heart Failure and Transplant Cardiology would participate in the inpatient and outpatient management of patients with advanced heart failure across the spectrum from consideration for high-risk cardiac surgery,...
-
Internal MedicineA 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,...
-
Internal MedicineAn internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Identifiers
| Type | Value | Notes |
|---|---|---|
| 05 (NY) | 02591413 | |
| 01 (CT) | 61844 | CT STATE LICENSE |
Multi-state credentialing: Licensed in 3 states. Useful context for credentialers building cross-state provider networks.
Practice context
Part of a multi-provider practice. 75 other active providers share this practice address in NPPES.
Provyx · Custom healthcare lists
Need all 81 Internal Medicine providers in Texas?
Get the full list as a CSV with verified work emails, direct phones, and LinkedIn URLs.
Request a quote →How to verify this provider
- Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
- Check the state license is currently active.State licensing boards publish current status; NPPES does not.
- Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.