Doctor profile · Federal record
Dr. Charles Ma, M.D.
Endocrinology, Diabetes & Metabolism Physician (CMS: Endocrinology) · Student in an Organized Health Care Education/Training Program · Wilton, CT
- NPI 1174979611
- Accepts Medicare
- MIPS 89.1 / 100 · 2023
- 10 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
249 Danbury RD
Wilton, CT 068974010
(203) 852-2270 - Additional location
-
759 Chestnut St
Springfield, MA 011991001
(413) 794-0000 - Additional location
-
111 E 210Th St
Bronx, NY 104672401
(718) 920-2017
fax (718) 920-5202
Credentials & registration
- NPI registered
- May 2016 — 10 yrs on file
- Profile last updated
- May 25, 2021
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 207RE0101X — NUCC code
- State license (1)
- Connecticut #68083
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1174979611. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
4,937
Distinct HCPCS
7
Medicare allowed
$168,510
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J0897 |
Injection, denosumab, 1 mg | 4,024 | 53 | $23 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 416 | 225 | $125 | |
82962 |
Blood glucose (sugar) test performed by hand-held instrument | 204 | 99 | $3 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 103 | 103 | $162 | |
83036 |
Hemoglobin a1c level | 100 | 72 | $9 | |
96372 |
Injection of drug or substance under skin or into muscle | 71 | 53 | $14 | |
95250 |
Continuous monitoring of blood sugar level in tissue fluid using sensor under skin with provider supplied equipment | 19 | 16 | $148 |
In context: peer comparison
Among 3 peers in Wilton Endocrinology, Diabetes & Metabolism Physician, average services per provider: 450. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$303
Transactions
13
Manufacturers
9
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Radius Health, INC. | 3 | $86.93 | |
| Amgen INC. | 2 | $46.25 | |
| Medtronic, INC. | 2 | $42.78 | |
| CeQur Corporation | 1 | $33.64 | |
| Corcept Therapeutics | 1 | $23.79 | |
| Sanofi-Aventis U.S. LLC | 1 | $20.94 | |
| Dexcom, INC. | 1 | $18.68 | |
| Lilly USA, LLC | 1 | $16.50 | |
| Amneal Pharmaceuticals LLC | 1 | $13.08 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,252
Patients
335
Total drug cost
$673,040
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Trulicity (Dulaglutide) | Brand | 172 | 32 | $197,912 |
| Ozempic (Semaglutide) | Brand | 140 | 28 | $159,472 |
| Lantus Solostar (Insulin Glargine,Hum.Rec.Anlog) | Brand | 137 | 49 | $76,852 |
| Levothyroxine Sodium | Generic | 128 | 37 | $1,953 |
| Metformin Hcl | Generic | 116 | 37 | $1,217 |
| Nano 2Nd Gen Pen Needle (Pen Needle, Diabetic) | Brand | 99 | 45 | $9,318 |
| Jardiance (Empagliflozin) | Brand | 70 | 15 | $74,091 |
| Alendronate Sodium | Generic | 69 | 25 | $1,151 |
| Humalog Kwikpen U-100 (Insulin Lispro) | Brand | 66 | 16 | $29,829 |
| Metformin Hcl ER (Metformin Hcl) | Brand | 50 | 17 | $671 |
Hospital affiliations
Frequently asked questions
What is Dr. Charles Ma's medical specialty?
Dr. Charles Ma practices Endocrinology, Diabetes & Metabolism Physician in Wilton, CT.
Where does Dr. Charles Ma practice?
Dr. Charles Ma practices at 249 Danbury RD, Wilton, CT 068974010. Office phone: 2038522270.
What is Dr. Charles Ma's NPI?
Dr. Charles Ma's National Provider Identifier (NPI) is 1174979611, issued by NPPES.
Does Dr. Charles Ma accept Medicare assignment?
Yes. Dr. Charles Ma accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Charles Ma commonly perform?
Top Medicare-reported procedures in 2023: Injection, denosumab, 1 mg (HCPCS J0897); Established patient office or other outpatient visit (HCPCS 99214); Blood glucose (sugar) test performed by hand-held instrument (HCPCS 82962). Source: CMS Medicare Physician & Other Practitioners file.