Charles Xiaodong Ma, M.D.
Endocrinology, Diabetes & Metabolism Physician · Wilton, CT
Charles Xiaodong Ma, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Wilton, Connecticut, and NPI 1174979611, issued on May 13, 2016. Check the license (Connecticut 68083, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Charles Xiaodong Ma
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 68083 CT
Self-reported in NPPES; status is on the state search - Practice location
- 249 Danbury RD, Wilton, CT 06897
- Phone
- (203) 852-2270
- Enumerated
- May 13, 2016
- Record last updated
- May 25, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210630003476); accepts Medicare assignment
- Medical or professional school
- University Of Connecticut School Of Medicine, 2016
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 214 in Connecticut → Look up another NPI →
Also registered at 249 Danbury RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kristina Bikoulova, APRNFamily Nurse Practitioner1568119667
- Kenneth Cheung, DOInternal Medicine Physician1093394025
- Jessica Convery, PT, DPTOrthopedic Physical Therapist1871479394
- Arthur D'Souza, M.D.Internal Medicine Physician1306937602
- Michelle LeeMedical Physician Assistant1922603125
- Amy Lohman, MDObesity Medicine (Family Medicine) Physician1821382532
Verify Charles Xiaodong Ma in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 68083Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
17% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
2,194 Medicare Part D claims for 322 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.
Most prescribed
- Ozempic230 claims
- Levothyroxine Sodium217 claims
- Metformin Hcl142 claims
- Lantus Solostar135 claims
- Trulicity130 claims
- Nano 2nd Gen Pen Needle95 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 94.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $302.59
13 payments; by number, the most common kind was food and beverage; the largest payer was Radius Health, Inc. The 5,661 providers of this specialty with any payment received $5,742.15 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Rehabilitation Associates IncFairfield, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Charles Xiaodong Ma among 214 endocrinology, diabetes & metabolism physician records in Connecticut
Charles Xiaodong Ma, M.D. is one of 214 endocrinology, diabetes & metabolism physician records with a practice address in Connecticut. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 83% of them.
- NPI issued2016 · 83% of these records are older, 13% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2016 · median 2004 among the 145 with a school on file
- Record last updated2021 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 endocrinology, diabetes & metabolism physician records list a practice address in Wilton
They are 4 of the 435 NPPES records with a practice address in Wilton, and 214 endocrinology, diabetes & metabolism physician records in Connecticut.
All 214 in Connecticut → Every provider in Wilton → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Kathleen O'Connell, M.D.Wilton, CT 068971346592862
- Pamela Randolph, M.D.Wilton, CT 068971003839135
- Meghna ShahWilton, CT 068971518312438
- Vivek Alaigh, MDStamford, CT 069021740675818
- Maria Cecilia Asnis, M.D.Stamford, CT 069021437475688
- Jansi Gnanasekaran, MDStamford, CT 069021760825103
- Melissa Goldstein, M.D.Stamford, CT 069021689835878
- Rebekah Gospin, M.D.Stamford, CT 069021528367026
Common questions
What is Charles Xiaodong Ma, M.D.'s NPI number?
Charles Xiaodong Ma, M.D.'s National Provider Identifier (NPI) is 1174979611, issued on May 13, 2016. An NPI identifies a provider in billing; it is not a license.
Where is Charles Xiaodong Ma, M.D. located?
The NPPES record lists a practice address at 249 Danbury RD, Wilton, CT, 06897. Phone: (203) 852-2270. Providers update this record themselves, so call before visiting.
How can I verify Charles Xiaodong Ma, M.D.'s license?
NPPES lists Connecticut license number 68083, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Charles Xiaodong Ma, M.D. prescribe under Medicare Part D?
In 2024, Charles Xiaodong Ma, M.D. had 2,194 Medicare Part D claims for 322 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Charles Xiaodong Ma, M.D.'s MIPS final score?
The 2023 MIPS final score is 94.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.