Physician Profile
Unclaimed ProfileAbout DEFRANG
Based in Rockford, MI, Aaron J Defrang, DO is listed in the NPI registry under family practice. Aaron graduated from Michigan State University College of Human Medicine in 2005. Aaron is also listed as specializing in family medicine. According to Medicare claims data, Aaron cared for 397 Medicare patients across 515 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (616) 267-7884
- Email not available
Practice Locations
8501 MEADOW CRK
Rockford, MI 49341
Procedures Most Often Billed to Medicare
515 services · 397 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Influenza vaccine, inactivated | Treatment | 90653 |
32 |
| Sarscov2 vac 50 mcg/0.5ml im | Treatment | 91322 |
23 |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
23 |
| Routine electrocardiogram (ecg) using at least 12 leads with tracing | Treatment | 93005 |
11 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
184 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
83 |
| 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' | Billing code | G2211 |
53 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
40 |
| Administration of influenza virus vaccine | Billing code | G0008 |
36 |
| Hemoglobin a1c level | Lab test | 83036 |
30 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other family practices at this location 8
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other family practices in Rockford 3
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Michigan State University College of Human Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 2005 at Michigan State University College of Human Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Influenza vaccine, inactivated 8
Providers in MI who bill this service to Medicare most often.
Common questions
What is Dr. Defrang's specialty?
Dr. Defrang is a family practice in Rockford, MI. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “FAMILY PRACTICE”.
NPI registry
Where can I find Dr. Defrang?
Dr. Defrang is listed at 8501 MEADOW CRK, Rockford, MI 49341. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Defrang?
The number on file is (616) 267-7884. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Defrang's NPI number?
Dr. Defrang's National Provider Identifier is 1689886608. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Defrang's medical education?
Dr. Defrang attended Michigan State University College of Human Medicine, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Defrang been practicing?
Dr. Defrang has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Defrang known for?
According to Medicare billing data, Dr. Defrang provides treatments such as influenza vaccine, inactivated and sarscov2 vac 50 mcg/0.5ml im, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Defrang confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Defrang. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.