Julia Kerwin, MD
NPI 1619557956 · Family Medicine Physician · Freeland, MI
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Julia Kerwin, MD is a Family Medicine Physician provider in Freeland, MI (NPI 1619557956).
Provider details
- NPI number
- 1619557956
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- 4301511146 (MI)
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
5 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
77 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 | 34 | $93 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 16 | $128 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 14 | $128 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 13 | $63 |
Typical Medicare-allowed amounts for these services range $63–$128 (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 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 73 | 36 |
| Rosuvastatin Calcium | 49 | 28 |
| Metformin Hclbrand: Metformin Hcl Er | 36 | 18 |
| Amlodipine Besylate | 32 | 18 |
| Lisinopril | 31 | 18 |
| Losartan Potassium | 31 | 15 |
Practice location
Mailing address
Additional practice locations (1)
- 44250 Dequindre RdSterling Heights, MI 48314-1002Phone: (248) 964-0400Fax: (248) 964-0521
Registry dates
- Enumerated
- 2021-04-12
- Last updated
- 2024-06-17
- Certified
- 2024-06-17
Frequently asked questions
- What is Julia Kerwin's NPI number?
- Julia Kerwin's National Provider Identifier (NPI) is 1619557956, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Julia Kerwin's specialty?
- Julia Kerwin is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Julia Kerwin located?
- Julia Kerwin's practice location on file with NPPES is 5694 Midland Rd, Freeland, MI 48623-8845.
- What is Julia Kerwin's phone number?
- The practice phone number listed in the NPPES registry for Julia Kerwin is (989) 695-2123.
- Does Julia Kerwin accept Medicare?
- Julia Kerwin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Julia Kerwin's NPI active?
- Yes — Julia Kerwin's NPI (1619557956) is active in the NPPES registry as of the last update on 2024-06-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.