Doctor profile · Federal record
Dr. James Mersey, M.D.
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Endocrinology, Diabetes & Metabolism Physician · The Villages, FL
- NPI 1669477683
- Accepts Medicare
- MIPS 93.9 / 100 · 2023
- 50 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
2955 Brownwood Blvd
The Villages, FL 321632039
(352) 674-8700
fax (352) 674-8714 - Additional location
-
1400 N US Highway 441, Suite 810
The Villages, FL 321598975 - Additional location
-
1451 El Camino Real
The Villages, FL 321590041
(352) 751-8000 - Mailing address
-
1667 Wading Heron Way
The Villages, FL 321632147
Credentials & registration
- NPI registered
- June 2005 — 21 yrs on file
- Profile last updated
- August 18, 2025
- Year of graduation
- 1976 — 50 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State licenses (2)
- Florida #ME116216 · Maryland #D19329
- Medicaid
- MD #053771300
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1669477683. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
4,718
Distinct HCPCS
10
Medicare allowed
$210,773
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J0897 |
Injection, denosumab, 1 mg | 2,700 | 45 | $23 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 475 | 181 | $75 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 378 | 337 | $127 | |
76536 |
Ultrasound scan of head and neck soft tissue | 299 | 294 | $109 | |
36415 |
Insertion of needle into vein for collection of blood sample | 176 | 123 | $6 | |
83036 |
Hemoglobin a1c level | 143 | 133 | $10 | |
96372 |
Injection of drug or substance under skin or into muscle | 114 | 54 | $14 | |
95251 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with interpretation and report | 99 | 87 | $35 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 95 | 92 | $164 | |
82947 |
Blood glucose (sugar) level | 90 | 86 | $4 |
In context: peer comparison
Among 2 peers in this city , average services per provider: 240. This provider delivers 20× the peer median.Open Payments
Industry payments received
All-time total
$1,527
Transactions
28
Manufacturers
12
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Amgen Inc. | 5 | $342.11 | |
| Esperion Therapeutics, Inc. | 3 | $176.67 | |
| Lilly USA, LLC | 6 | $172.20 | |
| Abbott Laboratories | 3 | $164.00 | |
| Radius Health, Inc. | 3 | $148.94 | |
| Ascensia Diabetes Care Us Inc. | 1 | $127.53 | |
| Boehringer Ingelheim Pharmaceuticals, Inc. | 1 | $124.01 | |
| Medtronic, Inc. | 1 | $117.22 | |
| Tandem Diabetes Care, Inc. | 1 | $77.08 | |
| Novo Nordisk Inc | 2 | $38.79 | |
| ABBVIE INC. | 1 | $24.54 | |
| Dexcom, Inc. | 1 | $13.90 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,621
Patients
587
Total drug cost
$1,181,020
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Levothyroxine Sodium | Generic | 273 | 94 | $5,070 |
| Synthroid (Levothyroxine Sodium) | Brand | 176 | 59 | $17,484 |
| Ozempic (Semaglutide) | Brand | 153 | 51 | $310,440 |
| Metformin Hcl | Generic | 135 | 52 | $1,897 |
| Trulicity (Dulaglutide) | Brand | 126 | 37 | $247,607 |
| Toujeo Solostar (Insulin Glargine,hum.Rec.Anlog) | Brand | 102 | 40 | $85,612 |
| Nano 2nd Gen Pen Needle (Pen Needle, Diabetic) | Brand | 87 | 41 | $14,283 |
| Jardiance (Empagliflozin) | Brand | 83 | 21 | $114,465 |
| Metformin Hcl Er (Metformin Hcl) | Brand | 83 | 31 | $1,402 |
| Toujeo Max Solostar (Insulin Glargine,hum.Rec.Anlog) | Brand | 75 | 32 | $132,357 |
Frequently asked questions
What is Dr. James Mersey's medical specialty?
Dr. James Mersey practices Endocrinology, Diabetes & Metabolism Physician in The Villages, FL.
Where does Dr. James Mersey practice?
Dr. James Mersey practices at 2955 Brownwood Blvd, The Villages, FL 321632039. Office phone: 3526748700.
What is Dr. James Mersey's NPI?
Dr. James Mersey's National Provider Identifier (NPI) is 1669477683, issued by NPPES.
Does Dr. James Mersey accept Medicare assignment?
Yes. Dr. James Mersey accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. James Mersey commonly perform?
Top Medicare-reported procedures in 2023: Injection, denosumab, 1 mg (HCPCS J0897); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.