Physician Profile
Gregory Maddox, M.D.
Unclaimed ProfileAbout Dr. Maddox
Gregory Maddox, M.D. practices family practice in Seattle, WA. Gregory is a 2011 graduate of Js Weill Medical College, Cornell University. Gregory is also listed as specializing in family medicine. Medicare claims data shows Gregory provided 726 services to 614 patients.
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
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (206) 324-8484
- Email not available
Practice Locations
550 16TH AVE SUITE 400
Seattle, WA 98122
Conditions Commonly Evaluated or Treated
Within Family Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Procedures & services
Most searched procedures
Procedures Most Often Billed to Medicare
726 services · 614 patients · 14 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
71 |
| Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use | Treatment | 90677 |
29 |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
23 |
| Sarscv2 vac 30mcg trs-suc im | Treatment | 91320 |
21 |
| Admn sarscov2 vacc 1 dose | Treatment | 90480 |
21 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
209 |
| Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | Billing code | G0439 |
129 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
71 |
| 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 |
36 |
| Annual depression screening, 5 to 15 minutes | Billing code | G0444 |
35 |
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 Seattle 7
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Js Weill Medical College, Cornell University 8
Other providers in the same specialty who trained at the same institution.
Class of 2011 at Js Weill Medical College, Cornell University 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in WA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Maddox?
Dr. Maddox is a family practice in Seattle, WA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “FAMILY PRACTICE”.
NPI registry
What is Dr. Maddox's address?
Dr. Maddox is listed at 550 16TH AVE SUITE 400, Seattle, WA 98122. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Maddox?
The number on file is (206) 324-8484. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Maddox?
Dr. Maddox's National Provider Identifier is 1114212347. 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. Maddox train?
Dr. Maddox attended Js Weill Medical College, Cornell University, graduating in 2011. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Maddox have?
Dr. Maddox has 15 years experience. Calculated from a graduation year of 2011, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Maddox perform?
According to Medicare billing data, Dr. Maddox performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as pneumococcal conjugate vaccine, 20 valent , for intramuscular use and influenza vaccine split virus, preservative free, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Maddox's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Maddox. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.