Roger Watson, M.D.
NPI 1932172327 · Internal Medicine Physician · Delafield, WI
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Roger Watson, M.D. is a Internal Medicine Physician provider in Delafield, WI (NPI 1932172327).
Provider details
- NPI number
- 1932172327
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 42990 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
966 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 447 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 216 | $120 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 142 | $122 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 75 | $85 |
| Administration of Influenza Virus VaccineG0008 | 37 | $30 |
| Admn Sarscov2 Vacc 1 Dose90480 | 29 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 64 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 480 | 128 |
| Amlodipine Besylate | 290 | 79 |
| Lisinopril | 225 | 64 |
| Losartan Potassium | 218 | 62 |
| Levothyroxine Sodium | 164 | 43 |
| Hydrochlorothiazide | 155 | 44 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-02-08
- Last updated
- 2026-04-29
- Certified
- 2026-04-29
Frequently asked questions
- What is Roger Watson's NPI number?
- Roger Watson's National Provider Identifier (NPI) is 1932172327, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Roger Watson's specialty?
- Roger Watson is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Roger Watson located?
- Roger Watson's practice location on file with NPPES is 2750 Golf Road, Delafield, WI 53018.
- What is Roger Watson's phone number?
- The practice phone number listed in the NPPES registry for Roger Watson is (262) 928-4900.
- Does Roger Watson accept Medicare?
- Roger Watson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Roger Watson's NPI active?
- Yes — Roger Watson's NPI (1932172327) is active in the NPPES registry as of the last update on 2026-04-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.