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MR. DWAIN ANTHONY HAMILTON M.D.
NPI 1609932664
Anesthesiology in New Haven, CT

Active since December 27, 2006PECOS EnrolledAccepts Medicare Assignment
78.18/100
CMS Quality Rating
93 DIAMOND ST, NEW HAVEN, CT 06515(203) 387-7104(203) 387-7380 Get Directions Write a Review

NPPES record last updated: December 16, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Dec 16, 2025, Dec 9, 2025 (2 updates tracked since 2025).

About Mr. Dwain Anthony Hamilton M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MR. DWAIN ANTHONY HAMILTON M.D. (NPI 1609932664) is an individual anesthesiology provider in New Haven, Connecticut, licensed in Texas (W2174) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS, is affiliated with Christus St Michael Health System, and maintains a secondary practice location in Texarkana.

NPPES Registry Identity

NPI1609932664
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameMR. DWAIN ANTHONY HAMILTONCredential: M.D.
Location Address93 DIAMOND STNew Haven, CT 06515-1317
Mailing Address93 Diamond StNew Haven, CT 06515-1317 · (203) 387-7104 · Fax (203) 387-7380
Phone(203) 387-7104
Fax(203) 387-7380
Sole ProprietorNo
Medical School CMSUniversity Of Florida College Of MedicineGraduated 1995
Enumeration DateDecember 27, 2006
Last NPPES UpdateDecember 16, 20252 updates tracked since enumeration
NPPES CertifiedDecember 16, 2025
✔ NPI 1609932664 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
Licenses✔ Licensed in TX · W2174✔ Licensed in CT · 043656✔ Licensed in FL · ME98839
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
93 DIAMOND ST, New Haven, CT 06515
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Secondary Practice Location 1

Location 12602 Saint Michael Dr Ste 301Texarkana, TX 75503-5206 · Phone (903) 614-5258

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Mr. Dwain Anthony Hamilton M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7719916402
PECOS Enrollment IDI20251217004158
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

8

Medicare enrollment records show Dwain Hamilton reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

American Anesthesiology Services Of Florida, Inc.
45 mi
Anesthesiology
1305 WALT WHITMAN RD STE 300
Melville, NY 11747
  • Reassigned Medicare billing, Florida enrollment
  • 628 clinicians in this Medicare group
NPI 1508318387 (516) 945-3000
Chs Anesthesia Services Group Inc
593 mi
Anesthesiology
8800 N TRYON ST
Charlotte, NC 28262
  • Reassigned Medicare billing, North Carolina enrollment
  • 1,212 clinicians in this Medicare group
NPI 1346649415 (704) 863-6000
Commonwealth Health Corporation, Inc
729 mi
Surgery
252 BURKESVILLE RD
Albany, KY 42602
  • Reassigned Medicare billing, Kentucky enrollment
  • 319 clinicians in this Medicare group
NPI 1922539188 (606) 387-3000
Florida Clinical Practice Association Inc
963 mi
Surgery
1600 SW ARCHER RD
Gainesville, FL 32610
  • Reassigned Medicare billing, Florida enrollment
  • 3,324 clinicians in this Medicare group
NPI 1063463768 (352) 265-7922
Us Anesthesia Partners Of Florida Inc.
996 mi
Anesthesiology
851 TRAFALGAR CT, SUITE 200E
Maitland, FL 32751
  • Reassigned Medicare billing, Florida enrollment
  • 2,356 clinicians in this Medicare group
NPI 1518910520 (321) 422-7155
Gulf-To-Bay Anesthesiology Associates LLC
1,036 mi
Anesthesiology
13100 FORT KING RD
Dade City, FL 33525
  • Reassigned Medicare billing, Florida enrollment
  • 1,287 clinicians in this Medicare group
NPI 1982932562 (813) 844-4434
Baycare Medical Group, Inc.
1,074 mi
General Practice
2995 DREW ST FL 2
Clearwater, FL 33759
  • Reassigned Medicare billing, Florida enrollment
  • 2,009 clinicians in this Medicare group
NPI 1043269871 (727) 281-9065
Christus Trinity Clinic Texas
1,379 mi
Family Medicine
520 DOUGLAS BLVD
Tyler, TX 75702
  • Reassigned Medicare billing, Texas enrollment
  • 2,745 clinicians in this Medicare group
NPI 1285684225 (903) 315-4119

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 4

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for procedure on small and large bowel using an endoscope 00813
Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.
32 services32 patients
Anesthesia for exam of colon using an endoscope 00812
Anesthesia for a colon examination with an endoscope is a method used to ensure comfort during the procedure. It involves administering medication to help you relax or sleep, thus reducing discomfort as the endoscope, a thin, flexible tube, is navigated through your colon.
30 services29 patients
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731
This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.
26 services25 patients
Anesthesia for other procedure on large bowel using an endoscope 00811
Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.
23 services23 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Christus St Michael Health System

Acute Care Hospitals · Texarkana, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number450801
Location2600 St Michael DrTexarkana, TX 75503 · Bowie County
Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

78.18/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality72.54
Promoting Interoperability100
Improvement Activities40
Cost54.74

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Dwain Hamilton's NPI number?

The NPI number for Dwain Hamilton is 1609932664. It was assigned to this individual provider in the NPPES registry on December 27, 2006.

Where is Dwain Hamilton located?

Dwain Hamilton practices at 93 Diamond St, New Haven, CT 06515. The listed phone number is (203) 387-7104.

What is Dwain Hamilton's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Dwain Hamilton enrolled in Medicare?

Yes. Dwain Hamilton is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Dwain Hamilton's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dwain Hamilton reassigns Medicare benefits to 8 organizations: American Anesthesiology Services Of Florida, Inc. (Melville, NY), Chs Anesthesia Services Group Inc (Charlotte, NC), Commonwealth Health Corporation, Inc (Albany, KY), Florida Clinical Practice Association Inc (Gainesville, FL), Us Anesthesia Partners Of Florida Inc. (Maitland, FL) and 3 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Dwain Hamilton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Dwain Hamilton accept?

Health plans from Blue Cross and Blue Shield of Texas and UnitedHealthcare list Dwain Hamilton as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Dwain Hamilton affiliated with any hospitals?

According to CMS data, Dwain Hamilton is affiliated with Christus St Michael Health System.

When was this NPI record last updated?

The NPPES record for Dwain Hamilton was last updated on December 16, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.