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MILL HILL MEDICAL CONSULTANTS INC
NPI 1396755245
Internal Medicine - Cardiovascular Disease in Greenwich, CT

Active since August 09, 2006
55 HOLLY HILL LN, SUITE 240, GREENWICH, CT 06830(203) 863-4210(203) 622-1872 Get Directions Write a Review

NPPES record last updated: May 19, 2010. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Mill Hill Medical Consultants Inc NPPES

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

MILL HILL MEDICAL CONSULTANTS INC (NPI 1396755245) is a healthcare organization registered as a cardiovascular disease in Greenwich, Connecticut and active in the NPI registry since August 2006. The organization lists Bruce Mcdonald, President, as its authorized official.

NPPES Registry Identity

NPI1396755245
Entity TypeOrganization
Primary Taxonomy207RC0000X
Legal Business NameMILL HILL MEDICAL CONSULTANTS INC
Location Address55 HOLLY HILL LN, SUITE 240Greenwich, CT 06830-6074
Mailing Address55 Holly Hill Ln, Suite 240Greenwich, CT 06830-6074 · (203) 863-4210 · Fax (203) 622-1872
Phone(203) 863-4210
Fax(203) 622-1872
Organization SubpartYesParent: Cardiovascular Services Of Greenwich
Authorized OfficialBruce McdonaldPresident · (203) 384-3717
Enumeration DateAugust 9, 2006
Last NPPES UpdateMay 19, 2010
✔ NPI 1396755245 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
55 HOLLY HILL LN, Greenwich, CT 06830
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Other Identifiers 1

OtherC03159CT · Medicare Group Number

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mill Hill Medical Consultants Inc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

1,817

Medicare enrollment records show 1,817 clinicians reassign Medicare billing to Mill Hill Medical Consultants Inc, which bills Medicare for the services they deliver. Of these, 4 practice at this address and 109 within 10 miles. Listed here are the 20 practicing nearest to this location.

Clinicians by Medicare Specialty 53

Nurse Practitioner430
Internal Medicine405
Hospitalist240
Family Practice81
Obstetrics/Gynecology73
Cardiovascular Disease (Cardiology)56
Psychiatry47
Certified Registered Nurse Anesthetist (CRNA)46
45 other specialties439

Nearest to this location (20)

See all 1,817
Jessica Walsh, ANP
Nurse Practitioner
NPI 1871844233
55 HOLLY HILL LN SUITE240
Greenwich, CT 06830
(203) 863-4210
✔ PECOS✔ Accepts MedicareSame address
Yi-Hao Yu, M.D., PH.D.
Endocrinology
NPI 1306914957
55 HOLLY HILL LN
Greenwich, CT 06830
(203) 863-3750
✔ PECOS✔ Accepts MedicareSame address
Alexander Delvecchio, M.D.
Cardiac Electrophysiology
NPI 1053321950
55 HOLLY HILL LN SUITE 240
Greenwich, CT 06830
(203) 863-4210
✔ PECOS✔ Accepts MedicareSame address
Ranee Angeli Lleva, M.D.
Endocrinology
NPI 1578709143
55 HOLLY HILL LN SUITE 150
Greenwich, CT 06830
(203) 863-3750
✔ PECOS✔ Accepts MedicareSame address
Heba Jafri, DPM
Podiatry
NPI 1821670001
55 HOLLY HILL LN
Greenwich, CT 06830
(203) 863-4475
✔ PECOS✔ Accepts MedicareSame address
Mary Kane Brock, MD
Endocrinology
NPI 1245312305
75 HOLLY HILL LN
Greenwich, CT 06830
(203) 869-6960
✔ PECOS✔ Accepts Medicare0.1 mi
Matthew Scott, DO
Family Practice
NPI 1144859612
500 W PUTNAM AVE STE 110
Greenwich, CT 06830
(203) 422-7250
✔ PECOS✔ Accepts Medicare0.2 mi
Lori Cretella, MD
Neurology
NPI 1619934130
15 VALLEY DR STE 201
Greenwich, CT 06831
(203) 863-4490
✔ PECOS✔ Accepts Medicare0.2 mi
Cheng-Hung Tai
Internal Medicine
NPI 1003310434
15 VALLEY DR FL 3
Greenwich, CT 06831
(917) 497-7661
✔ PECOS✔ Accepts Medicare0.2 mi
Casey Doyle, APRN
Nurse Practitioner
NPI 1184091217
15 VALLEY DR STE 200
Greenwich, CT 06831
(203) 863-4210
✔ PECOS✔ Accepts Medicare0.2 mi
Tara Robertson, APRN
Nurse Practitioner
NPI 1679069561
15 VALLEY DR STE 200
Greenwich, CT 06831
(203) 863-4210
✔ PECOS✔ Accepts Medicare0.2 mi
Eric Bader, M.D.
Cardiac Electrophysiology
NPI 1831403534
15 VALLEY DR SUITE 200
Greenwich, CT 06831
(203) 863-4210
✔ PECOS✔ Accepts Medicare0.2 mi
Donald Boyd, M.D.
Medical Oncology
NPI 1396826376
15 VALLEY DR 2ND FLOOR
Greenwich, CT 06831
(203) 869-2111
✔ PECOS✔ Accepts Medicare0.2 mi
Kiyoko Tomita, M.D.
Internal Medicine
NPI 1194041947
15 VALLEY DR
Greenwich, CT 06831
(203) 422-7251
✔ PECOS0.2 mi
Zhilin Jin
Family Practice
NPI 1144725359
500 W PUTNAM AVE STE 110
Greenwich, CT 06830
(203) 422-7250
✔ PECOS✔ Accepts Medicare0.3 mi
Anna Resisi, DO
Internal Medicine
NPI 1598228397
500 W PUTNAM AVE STE 110
Greenwich, CT 06830
(203) 422-7250
✔ PECOS✔ Accepts Medicare0.3 mi
Rosa Velasquez Maguina, MD
Internal Medicine
NPI 1740982966
500 W PUTNAM AVE STE 110
Greenwich, CT 06830
(203) 422-7250
✔ PECOS✔ Accepts Medicare0.4 mi
David Hahn, MD
Neurology
NPI 1053625459
115 MASON ST STE 1
Greenwich, CT 06830
(203) 276-4464
✔ PECOS✔ Accepts Medicare1.5 mi
Lana Bernstein, M.D.
Rheumatology
NPI 1912012857
49 LAKE AVE SUITE 2
Greenwich, CT 06830
(203) 869-5715
✔ PECOS✔ Accepts Medicare1.5 mi
Michael Franco, M.D.
Pulmonary Disease
NPI 1750305686
5 PERRYRIDGE RD SUITE 2-263
Greenwich, CT 06830
(203) 863-3115
✔ PECOS✔ Accepts Medicare1.5 mi
See all 1,817 clinicians

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

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 Mill Hill Medical Consultants Inc's NPI number?

The NPI number for Mill Hill Medical Consultants Inc is 1396755245. It was assigned to this organization in the NPPES registry on August 9, 2006.

Where is Mill Hill Medical Consultants Inc located?

Mill Hill Medical Consultants Inc is located at 55 Holly Hill Ln Suite 240, Greenwich, CT 06830. The listed phone number is (203) 863-4210.

What is Mill Hill Medical Consultants Inc's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Mill Hill Medical Consultants Inc enrolled in Medicare?

Yes. Mill Hill Medical Consultants Inc is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Mill Hill Medical Consultants Inc?

According to the CMS Revalidation Reassignment List (October 2026 release), 1,817 clinicians in 53 Medicare specialties reassign their Medicare billing to Mill Hill Medical Consultants Inc. A 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 the clinician's services. The largest specialties are Nurse Practitioner (430), Internal Medicine (405) and Hospitalist (240). Of these, 4 practice at this address and 109 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Mill Hill Medical Consultants Inc was last updated on May 19, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.