Doctor profile · Federal record
Dr. Michael Mills, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Phoenix, AZ
- NPI 1811948359
- Accepts Medicare
- MIPS 75.0 / 100 · 2023
- 35 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
349 E Coronado RD
Phoenix, AZ 850041525
(602) 266-5678
fax (602) 264-5646 - Mailing address
-
3020 E Camelback RD, Suite 301
Phoenix, AZ 850165059
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- February 17, 2017
- Year of graduation
- 1991 — 35 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Arizona #23704
- Medicaid
- AZ #334417-05
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1811948359. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,520
Distinct HCPCS
10
Medicare allowed
$157,564
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 237 | 184 | $113 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 214 | 159 | $78 | |
99439 |
Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | 168 | 17 | $46 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 131 | 130 | $158 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 102 | 100 | $82 | |
99490 |
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 98 | 17 | $60 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 90 | 90 | $240 | |
91010 |
Study of esophagus to assess movement | 81 | 81 | $61 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 71 | 71 | $173 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 69 | 69 | $151 |
In context: peer comparison
Among 19 peers in Phoenix Gastroenterology Physician, average services per provider: 61. This provider delivers 25× the peer median.Open Payments
Industry payments received
All-time total
$2,000
Transactions
77
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 23 | $639.19 | |
| Genzyme Corporation | 10 | $267.98 | |
| Fujifilm Healthcare Americas Corporation | 2 | $169.69 | |
| Janssen Biotech, INC. | 8 | $141.08 | |
| Gilead Sciences, INC. | 6 | $119.98 | |
| Takeda Pharmaceuticals U.S.A., INC. | 4 | $84.10 | |
| Merck Sharp & Dohme LLC | 4 | $81.72 | |
| Pfizer INC. | 4 | $77.69 | |
| Phathom Pharmaceuticals, INC. | 3 | $69.63 | |
| Ipsen Biopharmaceuticals, INC | 3 | $64.58 | |
| Ferring Pharmaceuticals INC. | 3 | $50.29 | |
| Celgene Corporation | 3 | $49.38 | |
| Ardelyx, INC. | 2 | $46.47 | |
| Davol INC. | 1 | $24.08 | |
| Regeneron Healthcare Solutions, INC. | 1 | $23.73 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
929
Patients
467
Total drug cost
$263,841
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 439 | 171 | $8,794 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 91 | 91 | $7,266 |
| Sutab (Sod Sulf/Pot Chloride/Mag Sulf) | Brand | 79 | 78 | $13,296 |
| Omeprazole | Generic | 42 | 16 | $843 |
| Linzess (Linaclotide) | Brand | 37 | 13 | $41,678 |
| Creon (Lipase/Protease/Amylase) | Brand | 36 | 11 | $174,875 |
| Famotidine | Generic | 34 | 17 | $830 |
| Ondansetron Odt (Ondansetron) | Brand | 30 | 12 | $404 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 29 | 17 | $518 |
| Colestipol Hcl | Generic | 21 | 13 | $2,536 |
Hospital affiliations
Frequently asked questions
What is Dr. Michael Mills's medical specialty?
Dr. Michael Mills practices Gastroenterology Physician in Phoenix, AZ.
Where does Dr. Michael Mills practice?
Dr. Michael Mills practices at 349 E Coronado RD, Phoenix, AZ 850041525. Office phone: 6022665678.
What is Dr. Michael Mills's NPI?
Dr. Michael Mills's National Provider Identifier (NPI) is 1811948359, issued by NPPES.
Does Dr. Michael Mills accept Medicare assignment?
Yes. Dr. Michael Mills accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael Mills commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Established patient office or other outpatient visit (HCPCS 99213); Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month (HCPCS 99439). Source: CMS Medicare Physician & Other Practitioners file.