Physician Profile
Unclaimed ProfileAbout MAGGASS
Based in Scottsdale, AZ, Gregory A Maggass, MD is listed in the NPI registry under radiation oncology. Gregory graduated from Medical College of Wisconsin in 1983.
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
Common questions
What does Dr. Maggass specialise in?
Dr. Maggass is a radiation oncology in Scottsdale, AZ. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “RADIATION ONCOLOGY”.
NPI registry
Where is Dr. Maggass located?
Dr. Maggass is listed at 9055 E DEL CAMINO DR STE 200, Scottsdale, AZ 85258. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Maggass's phone number?
The number on file is (480) 922-4600. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Maggass?
Dr. Maggass's National Provider Identifier is 1124093539. 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. Maggass go to medical school?
Dr. Maggass attended Medical College of Wisconsin, graduating in 1983. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Maggass have?
Dr. Maggass has 43 years experience. Calculated from a graduation year of 1983, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Maggass do most often?
According to Medicare billing data, Dr. Maggass performs imaging including ct guidance for insertion of radiation therapy fields and calculation of radiation therapy dose, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Maggass's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Maggass. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (480) 922-4600
- Email not available
Practice Locations
9055 E DEL CAMINO DR STE 200
Scottsdale, AZ 85258
Procedures Most Often Billed to Medicare
2,900 services · 1,059 patients · 22 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Ct guidance for insertion of radiation therapy fields | Imaging | 77014 |
588 |
| Calculation of radiation therapy dose | Imaging | 77300 |
248 |
| Continuing radiation therapy consultation per week | Imaging | 77336 |
181 |
| Radiation treatment management, 5 treatment sessions | Imaging | 77427 |
164 |
| Design and construction of radiation treatment device for high precision radiation therapy | Imaging | 77338 |
70 |
| High precision radiation therapy planning | Imaging | 77301 |
66 |
| Complex radiation therapy planning | Imaging | 77263 |
66 |
| Design and construction of complex radiation treatment device | Imaging | 77334 |
53 |
| Special radiation treatment | Imaging | 77470 |
41 |
| Special medical radiation therapy consultation | Imaging | 77370 |
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 radiation oncology specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 32 related providers in 4 groups
Other radiation oncology specialists in Scottsdale 8
Same specialty, same city.
Trained at Medical College of Wisconsin 8
Other providers in the same specialty who trained at the same institution.
Class of 1983 at Medical College of Wisconsin 8
Providers who graduated from the same medical school in the same year.
Also performs Ct guidance for insertion of radiation therapy fields 8
Providers in AZ who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.