Doctor profile · Federal record
Dr. Jonathan Fillmore, MD
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Trumbull, CT
- NPI 1578592713
- Accepts Medicare
- 29 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
5520 Park Ave, Suite 306
Trumbull, CT 066113463
(203) 373-7388
fax (203) 373-7472
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- December 9, 2009
- Year of graduation
- 1997 — 29 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- Connecticut #039461
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1578592713. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,046
Distinct HCPCS
7
Medicare allowed
$71,353
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 433 | 248 | $133 | |
J0897 |
Injection, denosumab, 1 mg | 317 | 15 | $18 | |
83036 |
Hemoglobin a1c level | 153 | 104 | $9 | |
96372 |
Injection of drug or substance under skin or into muscle | 85 | 19 | $15 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 30 | 29 | $93 | |
95251 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 17 | 14 | $36 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 11 | 11 | $175 |
In context: peer comparison
Among 7 peers in this city , average services per provider: 632. This provider delivers 1.7× the peer median.Open Payments
Industry payments received
All-time total
$2,577
Transactions
123
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Lilly USA, LLC | 20 | $437.38 | |
| Xeris Pharmaceuticals, Inc. | 18 | $329.01 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 21 | $307.81 | |
| Abbott Laboratories | 12 | $236.13 | |
| Amgen Inc. | 9 | $162.86 | |
| Novo Nordisk Inc | 15 | $146.40 | |
| Antares Pharma, Inc. | 4 | $119.68 | |
| Ascensia Diabetes Care Us Inc. | 3 | $83.95 | |
| Astellas Pharma US Inc | 3 | $80.24 | |
| Kyowa Kirin, Inc. | 3 | $74.99 | |
| ABBVIE INC. | 3 | $73.68 | |
| Novartis Pharmaceuticals Corporation | 4 | $68.03 | |
| Insulet Corporation | 3 | $63.46 | |
| Corcept Therapeutics | 3 | $59.47 | |
| Ascendis Pharma Inc | 2 | $50.73 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
3,097
Patients
816
Total drug cost
$1,895,561
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 617 | 146 | $9,731 |
| Ozempic (Semaglutide) | Brand | 413 | 94 | $703,796 |
| Lantus Solostar (Insulin Glargine,hum.Rec.Anlog) | Brand | 248 | 50 | $166,879 |
| Metformin Hcl | Generic | 240 | 72 | $3,396 |
| Glimepiride | Generic | 213 | 57 | $3,756 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 188 | 56 | $4,307 |
| Trulicity (Dulaglutide) | Brand | 187 | 44 | $327,074 |
| Synthroid (Levothyroxine Sodium) | Brand | 174 | 46 | $18,630 |
| Nano 2nd Gen Pen Needle (Pen Needle, Diabetic) | Brand | 138 | 63 | $13,662 |
| Jardiance (Empagliflozin) | Brand | 127 | 31 | $137,196 |
Hospital affiliations
Frequently asked questions
What is Dr. Jonathan Fillmore's medical specialty?
Dr. Jonathan Fillmore practices Endocrinology, Diabetes & Metabolism Physician in Trumbull, CT.
Where does Dr. Jonathan Fillmore practice?
Dr. Jonathan Fillmore practices at 5520 Park Ave, Trumbull, CT 066113463. Office phone: 2033737388.
What is Dr. Jonathan Fillmore's NPI?
Dr. Jonathan Fillmore's National Provider Identifier (NPI) is 1578592713, issued by NPPES.
Does Dr. Jonathan Fillmore accept Medicare assignment?
Yes. Dr. Jonathan Fillmore accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Jonathan Fillmore commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Injection, denosumab, 1 mg (HCPCS J0897); Hemoglobin a1c level (HCPCS 83036). Source: CMS Medicare Physician & Other Practitioners file.