John Hagan, DO
NPI 1548790165 · Family Medicine Physician · Southfield, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Hagan, DO is a Family Medicine Physician provider in Southfield, MI (NPI 1548790165).
Provider details
- NPI number
- 1548790165
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Male
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
9 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
381 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 | 237 | $102 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 62 | $71 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 43 | $123 |
| Hemoglobin A1c Level83036 | 39 | $9 |
Typical Medicare-allowed amounts for these services range $9–$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 · 110 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 578 | 166 |
| Lisinopril | 325 | 93 |
| Amlodipine Besylate | 237 | 69 |
| Levothyroxine Sodium | 210 | 57 |
| Metformin Hcl | 164 | 55 |
| Losartan Potassium | 155 | 49 |
| Hydrochlorothiazide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2017-06-15
- Last updated
- 2022-07-21
- Certified
- 2020-04-02
Frequently asked questions
- What is John Hagan's NPI number?
- John Hagan's National Provider Identifier (NPI) is 1548790165, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Hagan's specialty?
- John Hagan is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Hagan located?
- John Hagan's practice location on file with NPPES is 16001 W. Nine Mile Road, Southfield, MI 48075.
- What is John Hagan's phone number?
- The practice phone number listed in the NPPES registry for John Hagan is (248) 849-3000.
- Does John Hagan accept Medicare?
- John Hagan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Hagan's NPI active?
- Yes — John Hagan's NPI (1548790165) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.