Leo Bay, DO
NPI 1659752285 · Family Medicine Physician · Ashland, WI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leo Bay, DO is a Family Medicine Physician provider in Ashland, WI (NPI 1659752285).
Provider details
- NPI number
- 1659752285
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
- License
- OP60849062 (WA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
11 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
741 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 | 220 | $106 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 117 | $9 |
| Blood Test, Basic Group of Blood Chemicals (calcium, Total)80048 | 77 | $8 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 77 | $15 |
| Hemoglobin A1c Level83036 | 62 | $10 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 74 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 175 | 54 |
| Lisinopril | 155 | 42 |
| Warfarin Sodium | 130 | — |
| Amlodipine Besylate | 113 | 35 |
| Metoprolol Succinate | 106 | 29 |
| Omeprazole | 101 | 28 |
| Levothyroxine Sodium |
Practice location
Mailing address
Additional practice locations (1)
- 400 E 3rd StDuluth, MN 55805-1951Phone: (218) 786-8364
Registry dates
- Enumerated
- 2015-06-09
- Last updated
- 2021-12-10
- Certified
- 2021-12-08
Frequently asked questions
- What is Leo Bay's NPI number?
- Leo Bay's National Provider Identifier (NPI) is 1659752285, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leo Bay's specialty?
- Leo Bay is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Leo Bay located?
- Leo Bay's practice location on file with NPPES is 1615 Maple Ln Ste 1, Ashland, WI 54806-3630.
- What is Leo Bay's phone number?
- The practice phone number listed in the NPPES registry for Leo Bay is (715) 685-7500.
- Does Leo Bay accept Medicare?
- Leo Bay is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leo Bay's NPI active?
- Yes — Leo Bay's NPI (1659752285) is active in the NPPES registry as of the last update on 2021-12-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.