P Praxis·MD
● Active Type 1 · Individual

DR. Robert Gary Mennel, MD

Internal Medicine·Dallas, TX· NPI 1265475677 · Enumerated 2006 · 19 years on NPI
Mennel is 1 of 75 internal medicine providers in Dallas and 1 of 576 in Texas.
NPI age
19 years
Enumerated 2006-06-14
Primary specialty
Internal Medicine
Licensed in
TX
1 state
Status
Active
No deactivations on record
Last NPPES update
2011-10-26
Source: monthly bulk 2026-05
Sole proprietor
No
May be part of a larger org

How this provider compares

Across 576 active internal medicine providers in Texas.

NPI age
19 years
≈ at median (19 yr)
State licenses
1 state
18% of peers hold multiple states
Subspecialties
0
46% of peers hold subspecialties

NPI lifetime · 2006 → 2026

2006-06Enumerated in NPPES
2006 2026

Where they practice

Practice location
3410 Worth St
Dallas, TX 752462003
📞 2143701000fax 2143701026
Mailing address
Po Box 911230
Dallas, TX 753911230
📞 9729978000fax 9722342987

Specialties

  • Internal Medicine Primary
    An internist who specializes in the diagnosis and treatment of all types of cancer and other benign and malignant tumors. This specialist decides on and administers therapy for these malignancies as well as consults with surgeons and...
    TX license #F6039 taxonomy 207RX0202X

Identifiers

TypeValueNotes
05 (TX) 138667402
05 (TX) 138667407
05 (TX) 138667404
01 (TX) 8R1504 BLUE CROSS OF TX
05 (TX) 138667412
05 (TX) 138667414
05 (TX) 138667405
05 (TX) 138667410
05 (TX) 138667403
05 (TX) 138667406

Practice context

Part of a multi-provider practice. 85 other active providers share this practice address in NPPES.

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How to verify this provider

  1. Confirm the NPI on NPPES.The CMS registry is the system of record. Open NPPES →
  2. Check the state license is currently active.State licensing boards publish current status; NPPES does not.
  3. Confirm payer enrollment if billing.NPI presence does not guarantee active enrollment with Medicare, Medicaid, or commercial payers.

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