Doctor profile · Federal record
Dr. Alfred Callahan, MD
Neurology Physician (CMS: Neurology) · Nashville, TN
- NPI 1649206715
- Accepts Medicare
- MIPS 0.0 / 100 · 2023
- 51 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2000 Glen Echo RD, Ste 122
Nashville, TN 372152857
(615) 297-5300
fax (615) 297-5301
Credentials & registration
- NPI registered
- June 2006 — 20 yrs on file
- Profile last updated
- February 20, 2008
- Year of graduation
- 1975 — 51 yrs since
- Specialty taxonomy
- 2084N0400X — NUCC code
- State license (1)
- Tennessee #MD009933
- Medicaid
- TN #3187893
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1649206715. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,170
Distinct HCPCS
3
Medicare allowed
$154,777
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
93880 |
Ultrasound of both sides of head and neck blood flow | 542 | 508 | $172 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 493 | 422 | $83 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 135 | 135 | $153 |
In context: peer comparison
Among 53 peers in this city , average services per provider: 212. This provider delivers 5.5× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
366
Patients
37
Total drug cost
$8,988
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 73 | 20 | $1,576 |
| Primidone | Generic | 66 | 17 | $1,606 |
| Ezetimibe | Generic | 29 | 0 | $1,238 |
| Clonazepam | Generic | 25 | 0 | $265 |
| Donepezil Hcl | Generic | 25 | 0 | $212 |
| Lorazepam | Generic | 23 | 0 | $136 |
| Phenytoin Sodium Extended | Generic | 23 | 0 | $583 |
| Clopidogrel (Clopidogrel Bisulfate) | Brand | 21 | 0 | $289 |
| Amitriptyline Hcl | Generic | 19 | 0 | $952 |
| Folic Acid | Generic | 17 | 0 | $144 |
Hospital affiliations
Frequently asked questions
What is Dr. Alfred Callahan's medical specialty?
Dr. Alfred Callahan practices Neurology Physician in Nashville, TN.
Where does Dr. Alfred Callahan practice?
Dr. Alfred Callahan practices at 2000 Glen Echo RD, Nashville, TN 372152857. Office phone: 6152975300.
What is Dr. Alfred Callahan's NPI?
Dr. Alfred Callahan's National Provider Identifier (NPI) is 1649206715, issued by NPPES.
Does Dr. Alfred Callahan accept Medicare assignment?
Yes. Dr. Alfred Callahan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Alfred Callahan commonly perform?
Top Medicare-reported procedures in 2023: Ultrasound of both sides of head and neck blood flow (HCPCS 93880); Established patient office or other outpatient visit (HCPCS 99213); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.