MARY MARGARET KANE-BROCK MD
NPI 1245312305
Internal Medicine in Greenwich, CT

Active since October 19, 2006PECOS EnrolledAccepts Medicare Assignment
70.22/100
CMS Quality Rating
75 HOLLY HILL LN, GREENWICH, CT 06830(203) 869-6960(203) 869-5103 Get Directions Write a Review

NPPES record last updated: September 3, 2014. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Mary Margaret Kane-brock Md NPPES

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

MARY MARGARET KANE-BROCK MD (NPI 1245312305) is an individual internal medicine provider in Greenwich, Connecticut, licensed in Connecticut (035005) and active in the NPI registry since October 2006. She is enrolled in Medicare PECOS and is a graduate of Other (1987).

NPPES Registry Identity

NPI1245312305
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameMARY MARGARET KANE-BROCKCredential: MD
Location Address75 HOLLY HILL LNGreenwich, CT 06830-6098
Mailing Address75 Holly Hill LnGreenwich, CT 06830-6098 · (203) 869-6960 · Fax (203) 869-5103
Fax(203) 869-5103
Sole ProprietorNo
Medical School CMSOtherGraduated 1987
Enumeration DateOctober 19, 2006
Last NPPES UpdateSeptember 3, 2014
NPI 1245312305 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 CT · 035005
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 ListedSpecialistTaxonomy 174400000X · License 035005 (CT)
75 HOLLY HILL LN, Greenwich, CT 06830

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Mary Margaret Kane-brock Md 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 ID7315956943
PECOS Enrollment IDI20060411000024
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.

Areas of Expertise CMS Part B claims 5

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
317 services132 patients
Hospital discharge day management, more than 30 minutes 99239
Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.
90 services87 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233
Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.
86 services57 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
20 services15 patients
Hospital discharge day management, 30 minutes or less 99238
Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.
19 services18 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 06830 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
$138.84 typical visit price
range $60.82 – $183.10
Typical copayment $34.71 (range $15.20 – $45.77)
Most-billed visit code 99204
Established Patient
$106.68 typical visit price
range $19.76 – $149.26
Typical copayment $26.67 (range $4.94 – $37.31)
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.

70.22/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality94.44
Promoting Interoperability73
Improvement Activities40
Cost28.81

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390
DME-Oxygen and Supplies · category DC002N
2 suppliers15 claims15 services$66.27 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

Internal Medicine
75 HOLLY HILL LN
GREENWICH, CT 06830
Internal Medicine
75 HOLLY HILL LN
GREENWICH, CT 06830
Dentist (General Practice)
75 HOLLY HILL LN
GREENWICH, CT 06830
Physical Therapist
75 HOLLY HILL LN
GREENWICH, CT 06830
Neurological Surgery
75 HOLLY HILL LN
GREENWICH, CT 06830
Physician Assistant
75 HOLLY HILL LN
GREENWICH, CT 06830
Nurse Practitioner (Primary Care)
75 HOLLY HILL LN
GREENWICH, CT 06830
Social Worker (Clinical)
75 HOLLY HILL LN
GREENWICH, CT 06830

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 Mary Kane-brock's NPI number?

The NPI number for Mary Kane-brock is 1245312305. It was assigned to this individual provider in the NPPES registry on October 19, 2006.

Where is Mary Kane-brock located?

Mary Kane-brock practices at 75 Holly Hill Ln, Greenwich, CT 06830. The listed phone number is (203) 869-6960.

What is Mary Kane-brock's specialty?

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

Is Mary Kane-brock enrolled in Medicare?

Yes. Mary Kane-brock 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.

When was this NPI record last updated?

The NPPES record for Mary Kane-brock was last updated on September 3, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.