Doctor profile · Federal record
Dr. Holly Maccallum, M.D.
Neurology Physician (CMS: Neurology) · Student in an Organized Health Care Education/Training Program · Fremont, CA
- NPI 1518225788
- Accepts Medicare
- 15 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
3200 Kearney St
Fremont, CA 945382299
(510) 490-1222 - Mailing address
-
325 Distel Cir
Los Altos, CA 940221408
Credentials & registration
- NPI registered
- April 2012 — 14 yrs on file
- Profile last updated
- May 29, 2020
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 2084N0400X — NUCC code
- State license (1)
- California #A136396
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1518225788. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
312
Distinct HCPCS
5
Medicare allowed
$54,355
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 174 | 123 | $152 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 56 | 46 | $214 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 51 | 51 | $194 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 17 | 17 | $260 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 14 | 14 | $109 |
In context: peer comparison
Among 4 peers in this city , average services per provider: 250. This provider delivers 1.2× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
662
Patients
122
Total drug cost
$71,026
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Donepezil Hcl | Generic | 91 | 33 | $2,901 |
| Levetiracetam | Generic | 89 | 25 | $5,656 |
| Carbidopa-Levodopa (Carbidopa/Levodopa) | Brand | 83 | 21 | $4,807 |
| Gabapentin | Generic | 68 | 22 | $3,225 |
| Memantine Hcl | Generic | 63 | 21 | $3,952 |
| Sumatriptan Succinate | Generic | 51 | 0 | $3,728 |
| Lacosamide | Generic | 32 | 0 | $11,138 |
| Lamotrigine | Generic | 25 | 0 | $703 |
| Quetiapine Fumarate | Generic | 25 | 0 | $1,205 |
| Amantadine (Amantadine Hcl) | Brand | 24 | 0 | $1,860 |
Frequently asked questions
What is Dr. Holly Maccallum's medical specialty?
Dr. Holly Maccallum practices Neurology Physician in Fremont, CA.
Where does Dr. Holly Maccallum practice?
Dr. Holly Maccallum practices at 3200 Kearney St, Fremont, CA 945382299. Office phone: 5104901222.
What is Dr. Holly Maccallum's NPI?
Dr. Holly Maccallum's National Provider Identifier (NPI) is 1518225788, issued by NPPES.
Does Dr. Holly Maccallum accept Medicare assignment?
Yes. Dr. Holly Maccallum accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Holly Maccallum 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 99215); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.