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MICHAEL D MERRILL MD
NPI 1649205782
Internal Medicine in Buffalo, NY

Active since July 11, 2006PECOS Enrolled
95.19/100
CMS Quality Rating
565 ABBOTT RD, @ MERCY HOSPITAL OF BUFFALO, BUFFALO, NY 14220(518) 383-5450(518) 383-4223 Get Directions Write a Review

NPPES record last updated: December 23, 2021. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Michael D Merrill Md NPPES

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

MICHAEL D MERRILL MD (NPI 1649205782) is an individual internal medicine provider in Buffalo, New York, licensed in New York (212164-1) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1649205782
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameMICHAEL D MERRILLCredential: MD
Location Address565 ABBOTT RD, @ MERCY HOSPITAL OF BUFFALOBuffalo, NY 14220-2039
Mailing Address58 Stillwell AveKenmore, NY 14217-2122 · (716) 871-8747
Phone(518) 383-5450
Fax(518) 383-4223
Sole ProprietorNo
Enumeration DateJuly 11, 2006
Last NPPES UpdateDecember 23, 2021
NPPES CertifiedDecember 23, 2021
✔ NPI 1649205782 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 212164-1
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedHospitalistTaxonomy 208M00000X · License 212164 (NY)
565 ABBOTT RD, Buffalo, NY 14220
Open in Google Maps ↗

Other Identifiers 1

Medicaid02515277NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Michael D Merrill 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 Reassignments

4

Medicare enrollment records show Michael Merrill reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Infinity Medical Of Wny PC
11 mi
Hospitalist
1540 MAPLE RD
Williamsville, NY 14221
  • Reassigned Medicare billing, New York enrollment
  • 104 clinicians in this Medicare group
NPI 1568883080 (716) 568-3600
Infinity Medical Group P.C.
13 mi
Internal Medicine
275 NORTHPOINTE PKWY, SUITE 50
Amherst, NY 14228
  • Reassigned Medicare billing, New York enrollment
  • 106 clinicians in this Medicare group
NPI 1841648011 (716) 834-1191
United Memorial Medical Center
34 mi
Hematology & Oncology
127 NORTH ST, SECOND FLOOR
Batavia, NY 14020
  • Reassigned Medicare billing, New York enrollment
  • 782 clinicians in this Medicare group
NPI 1508260704 (585) 344-5252
Cogent Medical Care PC
333 mi
Internal Medicine
101 HOSPITAL RD
East Patchogue, NY 11772
  • Reassigned Medicare billing, New York enrollment
  • 640 clinicians in this Medicare group
NPI 1912941238 (631) 687-4131

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 14220 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
$126.40 typical visit price
range $54.87 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.08 typical visit price
range $17.54 – $136.14
Typical copayment $24.27 (range $4.38 – $34.03)
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.

95.19/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality70.62
Promoting Interoperability100
Improvement Activities40

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ERIN ELIZABETH URBAN PHARM.D
Pharmacist
565 ABBOTT RD
BUFFALO, NY 14220
Erie County (716) 826-7000
DEBORAH MARIE GIERMEK RN
Registered Nurse
565 ABBOTT RD
BUFFALO, NY 14220
Erie County (716) 826-7000
CATHERINE ELAINE ALMETER PA
Physician Assistant
565 ABBOTT RD
BUFFALO, NY 14220
Erie County (716) 826-7000
CHRISTOPHER DAMELIO
Nurse Practitioner
565 ABBOTT RD
BUFFALO, NY 14220
Erie County (716) 826-7000
MARY L NOLAN PA
Physician Assistant
565 ABBOTT RD, @ MERCY HOSPITAL OF BUFFALO
BUFFALO, NY 14220
Erie County (518) 383-5450
CATHOLIC HEALTH SYSTEM
Student in an Organized Health Care Education/Training Program
565 ABBOTT RD
BUFFALO, NY 14220
Erie County (716) 828-2557
JULIE PONCE NP
Nurse Practitioner (Adult Health)
565 ABBOTT RD
BUFFALO, NY 14220
Erie County (716) 826-7000
ANTHONY VINCENT STOCKUS P.A.
Physician Assistant (Medical)
565 ABBOTT RD
BUFFALO, NY 14220
Erie County (716) 828-2055

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 Michael Merrill's NPI number?

The NPI number for Michael Merrill is 1649205782. It was assigned to this individual provider in the NPPES registry on July 11, 2006.

Where is Michael Merrill located?

Michael Merrill practices at 565 Abbott Rd @ Mercy Hospital Of Buffalo, Buffalo, NY 14220. The listed phone number is (518) 383-5450.

What is Michael Merrill's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Michael Merrill enrolled in Medicare?

Yes. Michael Merrill is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Michael Merrill's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Merrill reassigns Medicare benefits to 4 organizations: Infinity Medical Of Wny PC (Williamsville, NY), Infinity Medical Group P.C. (Amherst, NY), United Memorial Medical Center (Batavia, NY) and Cogent Medical Care PC (East Patchogue, NY). 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 Michael Merrill'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 Michael Merrill was last updated on December 23, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.