Doctor profile · Federal record
Dr. James Posever, MD
Rheumatology Physician (CMS: Rheumatology) · Phoenix, AZ
- NPI 1154364214
- Accepts Medicare
- 35 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4212 N 16Th St
Phoenix, AZ 850165319
(602) 263-1200
fax (602) 263-1593
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- August 26, 2011
- Year of graduation
- 1991 — 35 yrs since
- Specialty taxonomy
- 207RR0500X — NUCC code
- State license (1)
- Arizona #29356
- Medicaid
- AZ #574584
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1154364214. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
107
Distinct HCPCS
3
Medicare allowed
$8,206
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 62 | 47 | $64 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 23 | 18 | $94 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 22 | 17 | $94 |
In context: peer comparison
Among 9 peers in Phoenix Rheumatology Physician, average services per provider: 4,912. This provider delivers 0.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
497
Patients
156
Total drug cost
$619,887
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Hydroxychloroquine Sulfate | Generic | 109 | 49 | $10,886 |
| Enbrel Sureclick (Etanercept) | Brand | 65 | 12 | $467,392 |
| Sulfasalazine | Generic | 55 | 29 | $3,317 |
| Methotrexate (Methotrexate Sodium) | Brand | 45 | 27 | $2,617 |
| Meloxicam | Generic | 44 | 15 | $260 |
| Ibuprofen | Generic | 32 | 12 | $166 |
| Celecoxib | Generic | 28 | 12 | $1,605 |
| Rinvoq (Upadacitinib) | Brand | 21 | 0 | $125,581 |
| Mycophenolate Mofetil | Generic | 20 | 0 | $1,681 |
| Potassium Chloride | Generic | 14 | 0 | $509 |
Frequently asked questions
What is Dr. James Posever's medical specialty?
Dr. James Posever practices Rheumatology Physician in Phoenix, AZ.
Where does Dr. James Posever practice?
Dr. James Posever practices at 4212 N 16Th St, Phoenix, AZ 850165319. Office phone: 6022631200.
What is Dr. James Posever's NPI?
Dr. James Posever's National Provider Identifier (NPI) is 1154364214, issued by NPPES.
Does Dr. James Posever accept Medicare assignment?
Yes. Dr. James Posever accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James Posever commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Telephone medical discussion with physician (HCPCS 99443). Source: CMS Medicare Physician & Other Practitioners file.