Doctor profile · Federal record
Dr. Walter Nieri, M.D.
Geriatric Medicine (Internal Medicine) Physician (CMS: Internal Medicine) · Phoenix, AZ
- NPI 1265488258
- Accepts Medicare
- 58 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
6510 N 27Th St
Phoenix, AZ 850168943
(602) 885-1988
fax (602) 951-9750
Credentials & registration
- NPI registered
- May 2006 — 20 yrs on file
- Profile last updated
- February 24, 2009
- Year of graduation
- 1968 — 58 yrs since
- Specialty taxonomy
- 207RG0300X — NUCC code
- State license (1)
- Arizona #6055
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1265488258. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
267
Distinct HCPCS
2
Medicare allowed
$33,805
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99349 |
Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes | 256 | 40 | $124 | |
99345 |
Residence visit for new patient with high level of medical decision making, per day, if using time, at least 75 minutes | 11 | 11 | $196 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 116. This provider delivers 2.3× the peer median.Open Payments
Industry payments received
All-time total
$36
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Lilly USA, LLC | 1 | $35.54 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
958
Patients
106
Total drug cost
$17,902
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Citalopram Hbr (Citalopram Hydrobromide) | Brand | 148 | 24 | $2,492 |
| Levothyroxine Sodium | Generic | 120 | 17 | $1,631 |
| Donepezil Hcl | Generic | 90 | 15 | $1,456 |
| Risperidone | Generic | 87 | 11 | $2,037 |
| Quetiapine Fumarate | Generic | 85 | 11 | $2,493 |
| Trazodone Hcl | Generic | 74 | 15 | $993 |
| Sertraline Hcl | Generic | 50 | 0 | $571 |
| Divalproex Sodium | Generic | 45 | 0 | $1,053 |
| Escitalopram Oxalate | Generic | 45 | 0 | $697 |
| Rosuvastatin Calcium | Generic | 42 | 0 | $887 |
Frequently asked questions
What is Dr. Walter Nieri's medical specialty?
Dr. Walter Nieri practices Geriatric Medicine (Internal Medicine) Physician in Phoenix, AZ.
Where does Dr. Walter Nieri practice?
Dr. Walter Nieri practices at 6510 N 27Th St, Phoenix, AZ 850168943. Office phone: 6028851988.
What is Dr. Walter Nieri's NPI?
Dr. Walter Nieri's National Provider Identifier (NPI) is 1265488258, issued by NPPES.
Does Dr. Walter Nieri accept Medicare assignment?
Yes. Dr. Walter Nieri accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Walter Nieri commonly perform?
Top Medicare-reported procedures in 2023: Residence visit for established patient with moderate level of medical decision making (HCPCS 99349); Residence visit for new patient with high level of medical decision making (HCPCS 99345). Source: CMS Medicare Physician & Other Practitioners file.