William Langmade, MD
William Langmade, MD is an Internal Medicine Physician in Dallas, TX, registered under NPI 1003129487. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Dallas, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 536 ft away at Lot 8. A pharmacy sits 0.21 mi from the entrance (Walgreens), which helps if you leave with a prescription.
Getting here and what is nearby
Parking Lot 7 465 ft ~2 min
Parking 473 ft ~2 min
Parking Lot 8 536 ft ~3 min
Restaurant Jimmy John's 933 ft ~4 min
Pharmacy Walgreens 0.21 mi ~5 min
Restaurant Chip's Old Fashioned Hamburgers 0.22 mi ~5 min
1605 North Beckley Avenue, Dallas 75203
Restaurant Jonathon's Diner 0.25 mi ~6 min
Convenience 7-Eleven 0.30 mi ~7 min
Gas station 7-Eleven 0.31 mi ~7 min
225 East Colorado Boulevard
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| BP10037633 | TX | Internal Medicine Physician primary |
This provider holds licence BP10037633 issued in TX. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Internal Medicine
- PAC ID
- 0648580134
- Enrollment ID
- I20180102000665
Medicare enrolment is recorded as approved under the provider type Practitioner - Internal Medicine. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Internal Medicine covers
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. NUCC Health Care Provider Taxonomy, code 207R00000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003129487 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 14, 2010 |
| Last updated | Jul 14, 2010 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | MD |
| Practice address |
1441 N BECKLEY AVE Dallas, TX 75203 (214) 947-2306 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 1 | 2 | 9 | 4 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 2 | 9 | 4 | 7 |
Sum = 53 · next multiple of 10 = 60 · check digit = 7 · actual last digit = 7
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.