Michael May, M.D.
NPI 1619142742 · Internal Medicine Physician · Willmar, MN
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Michael May, M.D. is a Internal Medicine Physician provider in Willmar, MN (NPI 1619142742).
Provider details
- NPI number
- 1619142742
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 48697 (MN)
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
18 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
760 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) |
|---|---|---|
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 317 | $8 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 | 122 | $8 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 91 | $163 |
| Test to Examine How Well the Lungs Exchange Gases94729 | 57 | $8 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 49 | $122 |
| Test to Measure Expiratory Airflow and Volume Changes Before and After Medication Administration |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Atorvastatin Calcium | 68 |
| Levothyroxine Sodium | 35 |
| Losartan Potassium | 32 |
| Lisinopril | 32 |
| Furosemide | 31 |
| Potassium Chloride | 31 |
| Amlodipine Besylate | 30 |
| Pantoprazole Sodium | 29 |
| Citalopram Hydrobromidebrand: Citalopram Hbr |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-04-29
- Last updated
- 2023-03-28
- Certified
- 2023-03-28
Frequently asked questions
- What is Michael May's NPI number?
- Michael May's National Provider Identifier (NPI) is 1619142742, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Michael May's specialty?
- Michael May is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Michael May located?
- Michael May's practice location on file with NPPES is 101 Willmar Avenue Sw, Willmar, MN 56201.
- What is Michael May's phone number?
- The practice phone number listed in the NPPES registry for Michael May is (320) 231-5000.
- Does Michael May accept Medicare?
- Michael May is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Michael May's NPI active?
- Yes — Michael May's NPI (1619142742) is active in the NPPES registry as of the last update on 2023-03-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.