Spencer Fast, MD
NPI 1306990429 · Family Medicine Physician · Reedsburg, WI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Spencer Fast, MD is a Family Medicine Physician provider in Reedsburg, WI (NPI 1306990429).
Provider details
- NPI number
- 1306990429
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 49906 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 171 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 839 | 214 |
| Lisinopril | 449 | 128 |
| Amlodipine Besylate | 418 | 107 |
| Levothyroxine Sodium | 396 | 79 |
| Metoprolol Succinate | 383 | 90 |
| Rosuvastatin Calcium | 373 | 111 |
| Hydrocodone/Acetaminophen |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-01-23
- Last updated
- 2010-03-23
Frequently asked questions
- What is Spencer Fast's NPI number?
- Spencer Fast's National Provider Identifier (NPI) is 1306990429, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Spencer Fast's specialty?
- Spencer Fast is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Spencer Fast located?
- Spencer Fast's practice location on file with NPPES is 1900 N Dewey Ave, Reedsburg, WI 53959-2214.
- What is Spencer Fast's phone number?
- The practice phone number listed in the NPPES registry for Spencer Fast is (608) 524-6477.
- Does Spencer Fast accept Medicare?
- Spencer Fast is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Spencer Fast's NPI active?
- Yes — Spencer Fast's NPI (1306990429) is active in the NPPES registry as of the last update on 2010-03-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.