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Gastroenterology

Hannah L. Miller, MD

Works at hospitals in New Haven, CT · Connecticut

Summary

Dr. Hannah L. Miller, MD is a gastroenterologist at 1450 Chapel St B, New Haven, CT 06511. Phone: (203) 287-6100. Accepts Medicare assignment. In 2024, Hannah L. Miller had 236 Original Medicare patients and 9,327 services. NPI 1407879018. 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: Gastroenterologist (Medicare lists Gastroenterology)
  • Address: 1450 Chapel St B, New Haven, CT 06511 · Directions (4 more locations)
  • Phone: (203) 287‑6100
  • Medicare: Accepts Medicare assignment
  • Hospital: Yale-New Haven Hospital
  • Group practice: Yale University
  • Medical school: Js Weill Medical College, Cornell University · graduated 2000 (26 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 Hannah L. Miller, 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 Hannah L. Miller accept Medicare assignment?
Yes. Medicare's clinician data says Hannah L. Miller 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 Hannah L. Miller see?
In 2024, CMS data shows 236 Original Medicare patients and 9,327 services for Hannah L. Miller. This counts Original Medicare only and measures volume, not quality.
What is Hannah L. Miller's NPI number?
1407879018. 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 Hannah L. Miller, 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 patients236
Services billed to Medicare9,327
Different services or procedures33
Participating Medicare providerYes
Average age of these patients74

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)135 services
  2. Biopsy of large bowel using a flexible endoscope (45380)50 services
  3. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)35 services
  4. Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43239)31 services
  5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)28 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 cholesterol75%
  • High blood pressure71%
  • Arthritis50%
  • Anxiety33%
  • Ischemic heart disease32%
  • Diabetes27%

Hospitals where Hannah L. Miller works

Medicare's Facility Affiliation Data lists Hannah L. Miller 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.

Practice locations

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

Group practices

Medicare enrollment lists Hannah L. Miller as a member of this group (CMS data updated October 2, 2026).

  • Yale University2,645 clinicians in the group

Specialties

Find other Gastroenterology doctors in Connecticut →

Other gastroenterologists in New Haven

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

All gastroenterologists in New Haven →

Other clinicians in Yale University

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

Clinician information

CredentialMD
Medical schoolJs Weill Medical College, Cornell University
Graduation year2000 (26 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1407879018
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