Doctor profile · Federal record
Dr. Mark Geller, M.D.
Endocrinology, Diabetes & Metabolism Physician (CMS: Internal Medicine) · Tarzana, CA
- NPI 1093710345
- Accepts Medicare
- 41 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
18133 Ventura Blvd, Suite 204
Tarzana, CA 913563641
(818) 466-7700
fax (818) 996-1649 - Mailing address
-
Po Box 9602
Mission Hills, CA 913469602
Credentials & registration
- NPI registered
- June 2005 — 21 yrs on file
- Profile last updated
- October 23, 2018
- Year of graduation
- 1985 — 41 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- California #G60287
- Medicaid
- CA #YYY40048Y
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1093710345. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,442
Distinct HCPCS
10
Medicare allowed
$117,974
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 536 | 262 | $138 | |
36415 |
Insertion of needle into vein for collection of blood sample | 507 | 261 | $8 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 71 | 57 | $99 | |
93000 |
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | 64 | 61 | $16 | |
99215 |
Established patient office or other outpatient visit, 40-54 minutes | 47 | 46 | $194 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 37 | 37 | $140 | |
99443 |
Telephone medical discussion with physician, 21-30 minutes | 35 | 19 | $138 | |
71046 |
X-ray of chest, 2 views | 31 | 30 | $27 | |
G0008 |
Administration of influenza virus vaccine | 27 | 27 | $33 | |
90694 |
Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 24 | 24 | $76 |
In context: peer comparison
Among 3 peers in this city , average services per provider: 133. This provider delivers 11× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
2,185
Patients
639
Total drug cost
$281,043
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Atorvastatin Calcium | Generic | 365 | 112 | $5,619 |
| Levothyroxine Sodium | Generic | 302 | 77 | $4,343 |
| Amlodipine Besylate | Generic | 202 | 69 | $2,176 |
| Losartan Potassium | Generic | 182 | 53 | $3,532 |
| Metformin Hcl | Generic | 163 | 49 | $2,067 |
| Metoprolol Succinate | Generic | 124 | 33 | $2,807 |
| Lisinopril | Generic | 123 | 38 | $903 |
| Rosuvastatin Calcium | Generic | 116 | 39 | $3,503 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 109 | 33 | $2,028 |
| Synthroid (Levothyroxine Sodium) | Brand | 104 | 27 | $10,490 |
Frequently asked questions
What is Dr. Mark Geller's medical specialty?
Dr. Mark Geller practices Endocrinology, Diabetes & Metabolism Physician in Tarzana, CA.
Where does Dr. Mark Geller practice?
Dr. Mark Geller practices at 18133 Ventura Blvd, Tarzana, CA 913563641. Office phone: 8184667700.
What is Dr. Mark Geller's NPI?
Dr. Mark Geller's National Provider Identifier (NPI) is 1093710345, issued by NPPES.
Does Dr. Mark Geller accept Medicare assignment?
Yes. Dr. Mark Geller accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Mark Geller commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Insertion of needle into vein for collection of blood sample (HCPCS 36415); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.