Stephanie Peyton-Aas, MD
NPI 1083101869 · Family Medicine Physician · Watertown, SD
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Stephanie Peyton-Aas, MD is a Family Medicine Physician provider in Watertown, SD (NPI 1083101869).
Provider details
- NPI number
- 1083101869
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 12852 (SD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 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
207 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 102 | $123 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 72 | $87 |
| Administration of Influenza Virus VaccineG0008 | 21 | $31 |
| X-Ray of Chest, 2 Views71046 | 12 | $23 |
Typical Medicare-allowed amounts for these services range $23–$123 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 81 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 168 | 43 |
| Levothyroxine Sodium | 117 | 32 |
| Simvastatin | 93 | 29 |
| Omeprazole | 87 | 26 |
| Gabapentin | 79 | 24 |
| Losartan Potassium | 79 | 22 |
| Metoprolol Succinate | 78 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2018-04-17
- Last updated
- 2022-03-28
- Certified
- 2022-03-28
Frequently asked questions
- What is Stephanie Peyton-Aas's NPI number?
- Stephanie Peyton-Aas's National Provider Identifier (NPI) is 1083101869, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Stephanie Peyton-Aas's specialty?
- Stephanie Peyton-Aas is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Stephanie Peyton-Aas located?
- Stephanie Peyton-Aas's practice location on file with NPPES is 901 4th St Nw, Watertown, SD 57201-1558.
- What is Stephanie Peyton-Aas's phone number?
- The practice phone number listed in the NPPES registry for Stephanie Peyton-Aas is (605) 886-1565.
- Does Stephanie Peyton-Aas accept Medicare?
- Stephanie Peyton-Aas is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Stephanie Peyton-Aas's NPI active?
- Yes — Stephanie Peyton-Aas's NPI (1083101869) is active in the NPPES registry as of the last update on 2022-03-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.