Molly Day, M.D.
NPI 1356721450 · Sports Medicine (Orthopaedic Surgery) Physician · Madison, WI
Enrolled with Medicare as Practitioner - Orthopedic Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Molly Day, M.D. is a Sports Medicine (Orthopaedic Surgery) Physician provider in Madison, WI (NPI 1356721450).
Provider details
- NPI number
- 1356721450
- Entity type
- Individual
- Primary specialty
- Sports Medicine (Orthopaedic Surgery) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 75590-20 (WI)
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
11 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
108 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 31 | $60 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 25 | $61 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 16 | $41 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 13 | $75 |
| Shaving of Part of Shoulder Bone and Repair of Ligament Using an Endoscope29826 | 12 | $152 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-06-03
- Last updated
- 2021-08-18
- Certified
- 2021-08-18
Frequently asked questions
- What is Molly Day's NPI number?
- Molly Day's National Provider Identifier (NPI) is 1356721450, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Molly Day's specialty?
- Molly Day is listed in the NPPES registry with a primary specialty of Sports Medicine (Orthopaedic Surgery) Physician (Allopathic & Osteopathic Physicians).
- Where is Molly Day located?
- Molly Day's practice location on file with NPPES is 621 Science Dr, Madison, WI 53711-1074.
- What is Molly Day's phone number?
- The practice phone number listed in the NPPES registry for Molly Day is (608) 263-8850.
- Does Molly Day accept Medicare?
- Molly Day is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Molly Day's NPI active?
- Yes — Molly Day's NPI (1356721450) is active in the NPPES registry as of the last update on 2021-08-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.