Maura L. Sparks, MD
Internal Medicine Physician · Wilton, CT
Maura L. Sparks, MD is an internal medicine physician with a practice address in Wilton, Connecticut, and NPI 1124020516, issued on Aug 15, 2005. Check the license (Connecticut 045756, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Maura L. Sparks
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 045756 CT
Self-reported in NPPES; status is on the state search - Practice location
- 372 Danbury RD, Wilton, CT 06897
- Phone
- (203) 276-4015
- Enumerated
- Aug 15, 2005
- Record last updated
- Mar 3, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (203) 834-2639
- Medicare enrollment
- Enrolled (PECOS I20071025000575); accepts Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2001
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,623 in Connecticut → Look up another NPI →
Also registered at 372 Danbury RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Maura L. Sparks in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 045756Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
57% more Medicare Part D claims than the average internal medicine physician in 2024
4,999 Medicare Part D claims for 526 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 42 claims were for opioids.
Most prescribed
- Atorvastatin Calcium341 claims
- Losartan Potassium333 claims
- Amlodipine Besylate316 claims
- Levothyroxine Sodium285 claims
- Rosuvastatin Calcium265 claims
- Sertraline Hcl178 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 practice group's MIPS final score for 2023 (Medicare payment program): 79.1 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Rehabilitation Associates IncFairfield, CT
- Stamford Health Medical Group IncWilton, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Maura L. Sparks among 2,623 internal medicine physician records in Connecticut
Maura L. Sparks, MD is one of 2,623 internal medicine physician records with a practice address in Connecticut. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 89% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2001 · median 2004 among the 1,646 with a school on file
- Record last updated2020 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
25 internal medicine physician records list a practice address in Wilton
They are 25 of the 435 NPPES records with a practice address in Wilton, and 2,623 internal medicine physician records in Connecticut.
All 2,623 in Connecticut → Every provider in Wilton → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sally Bergwerk, MDWilton, CT 068971205863560
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- Arthur D'Souza, M.D.Wilton, CT 068971306937602
- Nancy Gade, M. D.Wilton, CT 068971306938634
- Varshapriya Iyer, M.D.Wilton, CT 068971134211485
- Donald Leone, M.D.Wilton, CT 068971295727782
- Jeremiah Lewis, M.D.Wilton, CT 068971497747968
- Steven Phillips, MDWilton, CT 068971306876255
Common questions
What is Maura L. Sparks, MD's NPI number?
Maura L. Sparks, MD's National Provider Identifier (NPI) is 1124020516, issued on Aug 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Maura L. Sparks, MD located?
The NPPES record lists a practice address at 372 Danbury RD, Wilton, CT, 06897. Phone: (203) 276-4015. Providers update this record themselves, so call before visiting.
How can I verify Maura L. Sparks, MD's license?
NPPES lists Connecticut license number 045756, 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 Maura L. Sparks, MD prescribe under Medicare Part D?
In 2024, Maura L. Sparks, MD had 4,999 Medicare Part D claims for 526 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Maura L. Sparks, MD's MIPS final score?
The 2023 MIPS final score is 79.1 of 100, reported for the practice group. 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.