Doctor profile · Federal record
Dr. Mark Terrelonge, MD, MPH
Neurology Physician (CMS: Neurology) · Neuromuscular Medicine (Psychiatry & Neurology) Physician · Student in an Organized Health Care Education/Training Program · San Francisco, CA
- NPI 1366837734
- Accepts Medicare
- MIPS 85.5 / 100 · 2023
- 11 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
505 Parnassus Ave, Box 0114
San Francisco, CA 941432204
(415) 476-3891
Credentials & registration
- NPI registered
- April 2015 — 11 yrs on file
- Profile last updated
- May 4, 2020
- Year of graduation
- 2015 — 11 yrs since
- Specialty taxonomy
- 2084N0400X — NUCC code
- State license (1)
- California #A146489
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1366837734. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
460
Distinct HCPCS
10
Medicare allowed
$46,541
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
95886 |
Needle measurement of electrical activity in arm or leg muscles, complete study | 112 | 72 | $52 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 65 | 39 | $162 | |
95885 |
Needle measurement of electrical activity in arm or leg muscles, limited study | 50 | 35 | $21 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 40 | 33 | $110 | |
99205 |
New patient office or other outpatient visit, 60-74 minutes | 39 | 39 | $203 | |
95910 |
Nerve conduction, 7-8 studies | 27 | 27 | $120 | |
99442 |
Telephone medical discussion with physician, 11-20 minutes | 25 | 20 | $74 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 22 | 20 | $74 | |
95911 |
Nerve conduction, 9-10 studies | 18 | 18 | $149 | |
95913 |
Nerve conduction, 13 or more studies | 18 | 18 | $212 |
In context: peer comparison
Among 69 peers in San Francisco Neurology Physician, average services per provider: 156. This provider delivers 2.9× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
226
Patients
25
Total drug cost
$575,538
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Gabapentin | Generic | 36 | 14 | $1,020 |
| Pregabalin | Generic | 31 | 11 | $1,622 |
| Riluzole | Generic | 26 | 0 | $13,823 |
| Duloxetine Hcl | Generic | 23 | 0 | $494 |
| Prednisone | Generic | 19 | 0 | $195 |
| Radicava Ors (Edaravone) | Brand | 18 | 0 | $251,720 |
| Baclofen | Generic | 17 | 0 | $681 |
| Relyvrio (Sod Phenylbutyrat/Taurursodiol) | Brand | 17 | 0 | $205,879 |
| Pyridostigmine Bromide | Generic | 15 | 0 | $1,052 |
| Diazepam | Generic | 12 | 0 | $78 |
Hospital affiliations
Frequently asked questions
What is Dr. Mark Terrelonge's medical specialty?
Dr. Mark Terrelonge practices Neurology Physician in San Francisco, CA.
Where does Dr. Mark Terrelonge practice?
Dr. Mark Terrelonge practices at 505 Parnassus Ave, San Francisco, CA 941432204. Office phone: 4154763891.
What is Dr. Mark Terrelonge's NPI?
Dr. Mark Terrelonge's National Provider Identifier (NPI) is 1366837734, issued by NPPES.
Does Dr. Mark Terrelonge accept Medicare assignment?
Yes. Dr. Mark Terrelonge accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Terrelonge commonly perform?
Top Medicare-reported procedures in 2023: Needle measurement of electrical activity in arm or leg muscles, complete study (HCPCS 95886); Established patient office or other outpatient visit (HCPCS 99215); Needle measurement of electrical activity in arm or leg muscles, limited study (HCPCS 95885). Source: CMS Medicare Physician & Other Practitioners file.