Doctor profile · Federal record
Dr. John Gilliam, MD
Family Medicine Physician (CMS: Family Practice) · Emergency Medicine Physician · Mayer, AZ
- NPI 1003877085
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 40 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
20172 E Stagecoach Trl
Mayer, AZ 863332357
(800) 288-6206
fax (800) 960-4547 - Mailing address
-
15029 N Thompson Peak Parkway, Ste B-111 Pmb 438
Scottsdale, AZ 852602223
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- July 1, 2020
- Year of graduation
- 1986 — 40 yrs since
- Specialty taxonomy
- 207Q00000X — NUCC code
- State licenses (2)
- Arizona #41469 · Oklahoma #16226
- Medicaid (2)
- OK #100044450B · OK #100044450A
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1003877085. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
2,209
Distinct HCPCS
10
Medicare allowed
$206,412
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99493 |
Follow-up psychiatric collaborative care management, subsequent calendar month, first 60 minutes | 545 | 126 | $137 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 438 | 224 | $117 | |
99454 |
Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | 225 | 54 | $48 | |
99458 |
Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes | 196 | 33 | $38 | |
99457 |
Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | 161 | 45 | $47 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 86 | 86 | $161 | |
90791 |
Psychiatric diagnostic evaluation | 63 | 62 | $168 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 54 | 50 | $85 | |
G3002 |
Chronic pain management and treatment, monthly bundle including, diagnosis; assessment and monitoring; administration of a validated pain rating scale or tool; the development, implementation, revision, and/or maintenance of a person-centered care plan tha | 45 | 28 | $75 | |
99492 |
Initial psychiatric collaborative care management, first calendar month, first 70 minutes | 43 | 43 | $145 |
In context: peer comparison
Among 1 peers in Mayer Family Medicine Physician, average services per provider: 88. This provider delivers 25× the peer median.Open Payments
Industry payments received
All-time total
$200
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Medtronic, INC. | 1 | $200.34 |
By nature of payment
Frequently asked questions
What is Dr. John Gilliam's medical specialty?
Dr. John Gilliam practices Family Medicine Physician in Mayer, AZ.
Where does Dr. John Gilliam practice?
Dr. John Gilliam practices at 20172 E Stagecoach Trl, Mayer, AZ 863332357. Office phone: 8002886206.
What is Dr. John Gilliam's NPI?
Dr. John Gilliam's National Provider Identifier (NPI) is 1003877085, issued by NPPES.
Does Dr. John Gilliam accept Medicare assignment?
Yes. Dr. John Gilliam accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Gilliam commonly perform?
Top Medicare-reported procedures in 2023: Follow-up psychiatric collaborative care management, subsequent calendar month (HCPCS 99493); Established patient office or other outpatient visit (HCPCS 99214); Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days (HCPCS 99454). Source: CMS Medicare Physician & Other Practitioners file.