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DAVID WILLIAM HAY MD
NPI 1093804882
Internal Medicine - Gastroenterology in Waterville, ME

Active since October 12, 2006PECOS Enrolled
79.27/100
CMS Quality Rating
325 E KENNEDY MEMORIAL DRIVE, MAINEGENERAL GASTROENTEROLOGY, WATERVILLE, ME 04901(207) 872-2424(207) 872-2099 Get Directions Write a Review

NPPES record last updated: November 16, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About David William Hay Md NPPES

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

DAVID WILLIAM HAY MD (NPI 1093804882) is an individual gastroenterology provider in Waterville, Maine, licensed in Maine (012891) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1093804882
Entity TypeIndividualMale
Primary Taxonomy207RG0100X
Provider Legal NameDAVID WILLIAM HAYCredential: MD
Location Address325 E KENNEDY MEMORIAL DRIVE, MAINEGENERAL GASTROENTEROLOGYWaterville, ME 04901
Mailing Address325 E Kennedy Memorial Drive, Mainegeneral GastroenterologyWaterville, ME 04901 · (207) 872-2424 · Fax (207) 872-2099
Phone(207) 872-2424
Fax(207) 872-2099
Sole ProprietorNo
Enumeration DateOctober 12, 2006
Last NPPES UpdateNovember 16, 2012
✔ NPI 1093804882 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in ME · 012891
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
325 E KENNEDY MEMORIAL DRIVE, Waterville, ME 04901
Open in Google Maps ↗

Other Identifiers 5

Other002128ME · Anthem
Medicare PINMM322501ME
Medicare UPINE54952
Medicaid272270099ME
Medicare ID-Type UnspecifiedMM3225

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

David William Hay Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignment

Medicare enrollment records show David Hay reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mainegeneral Medical Center
14 mi
General Acute Care Hospital
35 MEDICAL CENTER PARKWAY
Augusta, ME 04330
  • Reassigned Medicare billing, Maine enrollment
  • 978 clinicians in this Medicare group
NPI 1083949184 (207) 872-4454

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

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 04901 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$123.23 typical visit price
range $53.26 – $162.77
Typical copayment $30.80 (range $13.31 – $40.69)
Most-billed visit code 99204
Established Patient
$94.60 typical visit price
range $16.90 – $132.79
Typical copayment $23.65 (range $4.22 – $33.19)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

79.27/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality73.72
Promoting Interoperability76
Improvement Activities40
Cost60.51

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 David Hay's NPI number?

The NPI number for David Hay is 1093804882. It was assigned to this individual provider in the NPPES registry on October 12, 2006.

Where is David Hay located?

David Hay practices at 325 E Kennedy Memorial Drive Mainegeneral Gastroenterology, Waterville, ME 04901. The listed phone number is (207) 872-2424.

What is David Hay's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is David Hay enrolled in Medicare?

Yes. David Hay is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for David Hay's services?

According to the CMS Revalidation Reassignment List (October 2026 release), David Hay reassigns Medicare benefits to Mainegeneral Medical Center (Augusta, ME). The 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 David Hay's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for David Hay was last updated on November 16, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 years 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.