Physician Profile
Unclaimed ProfileAbout MATTHEWS
Gregory J Matthews, MD is a healthcare provider in Brown Deer, WI specializing in family practice. Gregory trained at Medical College of Wisconsin, graduating in 1990. Gregory is also listed as specializing in family medicine. According to Medicare claims data, Gregory cared for 248 Medicare patients across 340 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
- (414) 270-8150
- Email not available
Practice Locations
9233 N GREEN BAY RD
Brown Deer, WI 53209
Procedures Most Often Billed to Medicare
340 services · 248 patients · 4 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
151 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
121 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
54 |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
14 |
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 4
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 Brown Deer 4
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Medical College of Wisconsin 8
Other providers in the same specialty who trained at the same institution.
Class of 1990 at Medical College of Wisconsin 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Matthews specialize in?
Dr. Matthews is a family practice in Brown Deer, WI. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “FAMILY PRACTICE”.
NPI registry
Where is Dr. Matthews located?
Dr. Matthews is listed at 9233 N GREEN BAY RD, Brown Deer, WI 53209. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Matthews's phone number?
The number on file is (414) 270-8150. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Matthews's NPI number?
Dr. Matthews's National Provider Identifier is 1770524746. 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
Where did Dr. Matthews go to medical school?
Dr. Matthews attended Medical College of Wisconsin, graduating in 1990. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Matthews been practicing?
Dr. Matthews has 36 years experience. Calculated from a graduation year of 1990, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Matthews do most often?
According to Medicare billing data, Dr. Matthews the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Matthews confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Matthews. 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.