Doctor profile · Federal record
Dr. Gregor Paronian, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Pasadena, CA
- NPI 1366627945
- Accepts Medicare
- MIPS 8.7 / 100 · 2023
- 19 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1713 E Walnut St
Pasadena, CA 911061611
(626) 696-3607
fax (626) 696-3907
Credentials & registration
- NPI registered
- January 2008 — 18 yrs on file
- Profile last updated
- July 31, 2020
- Year of graduation
- 2007 — 19 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A107875
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1366627945. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
8,520
Distinct HCPCS
10
Medicare allowed
$589,196
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99458 |
Management using the results of remote vital sign monitoring per calendar month, each additional 20 minutes | 1,530 | 131 | $43 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 1,418 | 530 | $139 | |
99457 |
Management using the results of remote vital sign monitoring per calendar month, first 20 minutes | 1,146 | 180 | $53 | |
99454 |
Remote monitoring of physiologic parameters, initial supply of devices with daily recordings or programmed alerts transmission, each 30 days | 1,005 | 143 | $58 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 684 | 352 | $98 | |
36415 |
Insertion of needle into vein for collection of blood sample | 674 | 349 | $8 | |
99439 |
Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month | 647 | 66 | $51 | |
99490 |
Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month | 451 | 67 | $67 | |
96372 |
Injection of drug or substance under skin or into muscle | 157 | 44 | $16 | |
J3420 |
Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg | 114 | 35 | $2 |
In context: peer comparison
Among 31 peers in Pasadena Internal Medicine Physician, average services per provider: 151. This provider delivers 56× the peer median.Open Payments
Industry payments received
All-time total
$3,204
Transactions
122
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Abbvie INC. | 25 | $548.23 | |
| Amgen INC. | 26 | $432.62 | |
| AstraZeneca Pharmaceuticals Lp | 10 | $291.51 | |
| Bayer Healthcare Pharmaceuticals INC. | 9 | $220.46 | |
| Teleflex LLC | 2 | $162.67 | |
| Lilly USA, LLC | 6 | $160.00 | |
| Otsuka America Pharmaceutical, INC. | 6 | $158.34 | |
| Almatica Pharma LLC | 9 | $155.16 | |
| Novo Nordisk INC | 7 | $145.54 | |
| Phathom Pharmaceuticals, INC. | 8 | $139.84 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 4 | $73.73 | |
| GlaxoSmithKline, LLC. | 3 | $71.09 | |
| Lundbeck LLC | 3 | $68.70 | |
| Lexicon Pharmaceuticals, INC. | 2 | $62.59 | |
| Axsome Therapeutics, INC. | 2 | $55.58 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
13,209
Patients
2,249
Total drug cost
$591,216
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Rosuvastatin Calcium | Generic | 1,840 | 314 | $55,549 |
| Atorvastatin Calcium | Generic | 1,356 | 237 | $17,047 |
| Amlodipine Besylate | Generic | 1,069 | 195 | $10,722 |
| Levothyroxine Sodium | Generic | 964 | 161 | $15,028 |
| Gabapentin | Generic | 947 | 146 | $12,285 |
| Diclofenac Sodium | Generic | 897 | 154 | $150,860 |
| Metformin Hcl | Generic | 839 | 147 | $8,876 |
| Escitalopram Oxalate | Generic | 741 | 116 | $11,767 |
| Omeprazole | Generic | 680 | 112 | $8,201 |
| Ibuprofen | Generic | 674 | 127 | $6,019 |
Frequently asked questions
What is Dr. Gregor Paronian's medical specialty?
Dr. Gregor Paronian practices Internal Medicine Physician in Pasadena, CA.
Where does Dr. Gregor Paronian practice?
Dr. Gregor Paronian practices at 1713 E Walnut St, Pasadena, CA 911061611. Office phone: 6266963607.
What is Dr. Gregor Paronian's NPI?
Dr. Gregor Paronian's National Provider Identifier (NPI) is 1366627945, issued by NPPES.
Does Dr. Gregor Paronian accept Medicare assignment?
Yes. Dr. Gregor Paronian accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregor Paronian commonly perform?
Top Medicare-reported procedures in 2023: Management using the results of remote vital sign monitoring per calendar month (HCPCS 99458); Established patient office or other outpatient visit (HCPCS 99214); Management using the results of remote vital sign monitoring per calendar month (HCPCS 99457). Source: CMS Medicare Physician & Other Practitioners file.