Matthew Walser, MD
NPI 1861138307 · Internal Medicine Physician · Dallas, TX
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Walser, MD is a Internal Medicine Physician provider in Dallas, TX (NPI 1861138307).
Provider details
- NPI number
- 1861138307
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
83% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 30 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 84 | 33 |
| Rosuvastatin Calcium | 35 | 15 |
| Amlodipine Besylate | 35 | 15 |
| Gabapentin | 29 | 17 |
| Lisinopril | 28 | — |
| Nifedipinebrand: Nifedipine Er | 27 | 11 |
| Famotidine | 27 |
Practice location
Mailing address
Additional practice locations (1)
- 5841 S Maryland Ave # Mc1052Chicago, IL 60637-1443Phone: (773) 702-6760
Registry dates
- Enumerated
- 2022-05-09
- Last updated
- 2025-06-05
- Certified
- 2025-06-05
Frequently asked questions
- What is Matthew Walser's NPI number?
- Matthew Walser's National Provider Identifier (NPI) is 1861138307, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Walser's specialty?
- Matthew Walser is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Walser located?
- Matthew Walser's practice location on file with NPPES is 6201 Harry Hines Blvd, Dallas, TX 75235-5202.
- What is Matthew Walser's phone number?
- The practice phone number listed in the NPPES registry for Matthew Walser is (121) 463-3555.
- Does Matthew Walser accept Medicare?
- Matthew Walser is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Walser's NPI active?
- Yes — Matthew Walser's NPI (1861138307) is active in the NPPES registry as of the last update on 2025-06-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.