Doctor profile · Federal record
Dr. Thayer Phelan, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · Emergency Medicine Physician · Winslow, AZ
- NPI 1821209354
- Accepts Medicare
- MIPS 28.6 / 100 · 2023
- 19 yrs in practice
- Licensed in 3 states
- Female
- Group practice
- No sanctions
Practice & contact
Operates at 2 locations .
- Primary practice
-
1501 N Williamson Ave
Winslow, AZ 860472735
(928) 289-4691 - Additional location
-
2651 E Discovery Pkwy
Bloomington, IN 474089059
(812) 353-9515 - Mailing address
-
250 N Shadeland Ave
Indianapolis, IN 462194959
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- December 10, 2025
- Year of graduation
- 2007 — 19 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (3)
- Colorado #DR.0053427 · Arizona #75374 · Indiana #01098090A
- Medicaid
- LA #09892
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1821209354. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
399
Distinct HCPCS
9
Medicare allowed
$28,708
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 175 | 171 | $91 | |
87804 |
Detection test by immunoassay with direct visual observation for influenza virus | 50 | 25 | $16 | |
81003 |
Automated urinalysis test | 46 | 45 | $2 | |
87635 |
Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen | 40 | 40 | $50 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 28 | 28 | $127 | |
99285 |
Emergency department visit with high level of medical decision making | 20 | 20 | $172 | |
99212 |
Established patient office or other outpatient visit, 10-19 minutes | 14 | 14 | $57 | |
87651 |
Detection test by nucleic acid for strep (streptococcus, group a), amplified probe technique | 13 | 13 | $34 | |
99284 |
Emergency department visit with moderate level of medical decision making | 13 | 13 | $118 |
In context: peer comparison
Among 4 peers in Winslow Emergency Medicine Physician, average services per provider: 71. This provider delivers 5.6× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
169
Patients
162
Total drug cost
$1,732
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 47 | 42 | $276 |
| Prednisone | Generic | 36 | 35 | $83 |
| Amoxicillin-Clavulanate Potass (Amoxicillin/Potassium Clav) | Brand | 28 | 27 | $317 |
| Paxlovid (Eua) (Nirmatrelvir/Ritonavir) | Brand | 27 | 27 | $271 |
| Albuterol Sulfate Hfa (Albuterol Sulfate) | Brand | 18 | 18 | $544 |
| Doxycycline Hyclate | Generic | 13 | 13 | $240 |
Frequently asked questions
What is Dr. Thayer Phelan's medical specialty?
Dr. Thayer Phelan practices Emergency Medicine Physician in Winslow, AZ.
Where does Dr. Thayer Phelan practice?
Dr. Thayer Phelan practices at 1501 N Williamson Ave, Winslow, AZ 860472735. Office phone: 9282894691.
What is Dr. Thayer Phelan's NPI?
Dr. Thayer Phelan's National Provider Identifier (NPI) is 1821209354, issued by NPPES.
Does Dr. Thayer Phelan accept Medicare assignment?
Yes. Dr. Thayer Phelan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Thayer Phelan commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Detection test by immunoassay with direct visual observation for influenza virus (HCPCS 87804); Automated urinalysis test (HCPCS 81003). Source: CMS Medicare Physician & Other Practitioners file.