Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Internal Medicine

Maura L. Sparks, MD

Works at hospitals in Bridgeport, CT · Danbury, CT · Greenwich, CT … · Connecticut

Summary

Dr. Maura L. Sparks, MD is an internal medicine doctor at 1931 Black Rock Tpke, Fairfield, CT 06825. Phone: (203) 384-8681. Accepts Medicare assignment. In 2024, Maura L. Sparks had 311 Original Medicare patients and 1,424 services. NPI 1124020516. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 1931 Black Rock Tpke, Fairfield, CT 06825 · Directions (2 more locations)
  • Phone: (203) 384‑8681
  • Medicare: Accepts Medicare assignment
  • Hospitals: Bridgeport Hospital, Danbury Hospital, Greenwich Hospital Association - and 2 more
  • Group practice: Rehabilitation Associates Inc (+1 more)
  • Medical school: Georgetown University School Of Medicine · graduated 2001 (25 years since medical school)
  • Gender (as listed): Female
  • Telehealth: offered

From official Medicare data

This page shows what Medicare's official clinician data says about Maura L. Sparks, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Maura L. Sparks accept Medicare assignment?
Yes. Medicare's clinician data says Maura L. Sparks accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Maura L. Sparks see?
In 2024, CMS data shows 311 Original Medicare patients and 1,424 services for Maura L. Sparks. This counts Original Medicare only and measures volume, not quality.
What is Maura L. Sparks's NPI number?
1124020516. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Maura L. Sparks, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients311
Services billed to Medicare1,424
Different services or procedures33
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)290 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)212 services
  3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)191 services
  4. Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)154 services
  5. Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use (90677)72 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High cholesterol73%
  • High blood pressure63%
  • Arthritis46%
  • Ischemic heart disease29%
  • Osteoporosis26%
  • Anxiety23%

Hospitals where Maura L. Sparks works

Medicare's Facility Affiliation Data lists Maura L. Sparks at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Bridgeport HospitalBridgeport, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070010
  • Danbury HospitalDanbury, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070033
  • Greenwich Hospital Association -Greenwich, CT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 070018
  • Norwalk HospitalNorwalk, CT · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 070034
  • Stamford HospitalStamford, CT · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 070006

Practice locations

Addresses where Maura L. Sparks is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Maura L. Sparks as a member of these groups (CMS data updated October 2, 2026).

  • Rehabilitation Associates Inc529 clinicians in the group
  • Stamford Health Medical Group Inc444 clinicians in the group

Specialties

Find other Internal Medicine doctors in Connecticut →

Other internal medicine doctors in Fairfield

Clinicians with the same Medicare primary specialty in Fairfield, CT — not a recommendation.

All internal medicine doctors in Fairfield →

Other clinicians in Rehabilitation Associates Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolGeorgetown University School Of Medicine
Graduation year2001 (25 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1124020516
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians