2026 NPPES data Cardiovascular Disease Physician NPI 1265499560 MD
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MICHAEL GIVERTZ, MD

Cardiovascular Disease Physician in BROOKLINE, Massachusetts. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
1K
Medicare Part D claims · 190 beneficiaries · Cardiovascular Disease Physician avg: 3K
Industry payments
$5.9K
14 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

MICHAEL GIVERTZ, MD filed 1,313 Medicare Part D claims in 2023 as a Cardiovascular Disease Physician in BROOKLINE, Massachusetts.

1K
Part D claims, 2023
Likely
board-certified (heuristic)

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

MICHAEL GIVERTZ, MD's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

1,313 Top 21% higher than 79% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). This entry sits in this band. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

MICHAEL GIVERTZ, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about MICHAEL GIVERTZ, MD?

Quality data not reported

NPI registry status

Active

Issued 04/28/2006

NPI 1265499560

Primary specialty

Cardiovascular Disease Physician

Mid-sized

24,795 US NPIs in this specialty

Medicare Part D claims

1,313 57% vs specialty avg

2023 prescription claims

Specialty avg: 3,033

Specialty distribution in Massachusetts

How Cardiovascular Disease Physician compares to other specialties among Massachusetts providers

Massachusetts providers

Cardiovascular Disease Physician share within Massachusetts

1. Cardiovascular Disease Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Cardiovascular Disease Physician share within Massachusetts

Specialty board-certification context

Estimated specialty board-certified rate — Cardiovascular Disease Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Cardiovascular Disease Physician ABMS/AOA estimate

Est. board-certified rate (Cardiovascular Disease Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Cardiovascular Disease Physician) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

MICHAEL GIVERTZ, MD appears in the CMS NPPES registry as a Cardiovascular Disease Physician provider holding MD credentials at 111 CYPRESS ST, BROOKLINE, MA, 02445, with a listed phone of (857) 307-0896. NPI 1265499560 was issued on 04/28/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GIVERTZ most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 1,313 prescription claims written by this provider, covering 190 Medicare beneficiaries and totaling roughly $601K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Cardiovascular Disease Physician is a mid-sized specialty nationwide, with 24,795 enrolled providers across 54 states and an average of 3,033 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

111 CYPRESS ST
BROOKLINE, MA 02445

Provider Details

NPI 1265499560
Specialty Cardiovascular Disease Physician
Credentials MD
Gender Male
NPI Issued 04/28/2006

Hospital and facility affiliations

Facilities where MICHAEL GIVERTZ, MD bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

BRIGHAM AND WOMENS PHYSICIANS ORGANIZATION INC
BOSTON, MA

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for MICHAEL GIVERTZ, MD. Source: openpaymentsdata.cms.gov.

Total received

$5.9K

Largest payer

Edwards Lifesciences Corporation

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — Massachusetts BORIM 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~38K Massachusetts medical licensees in 2023 — they are NOT specific to MICHAEL GIVERTZ, MD. To verify MICHAEL GIVERTZ, MD's current license status, search the BORIM public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

80
Total board actions, Massachusetts 2023
Across 78 cases
2.11
Actions per 1,000 licensees
Massachusetts statewide rate
probation
Most common action type
29 cases

BORIM publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the Massachusetts disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

1,313
Total Claims
$601K
Total Drug Cost
190
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,162
Total Day Supply
94,201
Generic Drug Cost
$39K

Patient Demographics

Average Patient Age
69.0 years
Avg HCC Risk Score
2.24
Gender Split
37% female / 63% male

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What MICHAEL GIVERTZ, MD prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Entresto
Sacubitril/Valsartan
157
Metoprolol Succinate
101
Farxiga
Dapagliflozin Propanediol
96
Carvedilol
80
Rosuvastatin Calcium
80
Spironolactone
76
Torsemide
61
Atorvastatin Calcium
55
Jardiance
Empagliflozin
55
Eliquis
Apixaban
50

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Cardiovascular Disease Physician Overview

How MICHAEL GIVERTZ, MD fits within the Cardiovascular Disease Physician landscape nationally.

24,795
Cardiovascular Disease Physician Providers in US
54
States with Cardiovascular Disease Physician
3,033
Avg Claims per Provider

MICHAEL GIVERTZ, MD's 1,313 claims are below the specialty average of 3,033.

Nearby Cardiovascular Disease Physician Providers in Massachusetts

Other clinicians with the same primary specialty enrolled in Massachusetts, drawn from the same CMS NPPES roster as GIVERTZ.

Compare Cardiovascular Disease Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MICHAEL GIVERTZ, MD's specialty?
MICHAEL GIVERTZ, MD specializes in Cardiovascular Disease Physician and practices in BROOKLINE, Massachusetts. Credentials: MD.
How much does MICHAEL GIVERTZ, MD prescribe under Medicare Part D?
In 2023, MICHAEL GIVERTZ, MD wrote 1,313 Medicare Part D claims totaling $601K in drug costs for 190 beneficiaries.
Where is MICHAEL GIVERTZ, MD located?
MICHAEL GIVERTZ, MD is located at 111 CYPRESS ST, BROOKLINE, MA, 02445. Phone: (857) 307-0896.
What is MICHAEL GIVERTZ, MD's NPI number?
MICHAEL GIVERTZ, MD's National Provider Identifier (NPI) is 1265499560, issued on 04/28/2006.
How many Cardiovascular Disease Physician providers are there in the US?
There are 24,795 Cardiovascular Disease Physician providers across 54 states in the US. The average Cardiovascular Disease Physician provider writes 3,033 Medicare Part D claims per year.
What drugs does MICHAEL GIVERTZ, MD prescribe most often?
Based on 2023 Medicare Part D data, MICHAEL GIVERTZ, MD's most frequently prescribed drugs include Entresto, Metoprolol Succinate, Farxiga. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MICHAEL GIVERTZ, MD accept Medicare?
MICHAEL GIVERTZ, MD appears in CMS Medicare data with 1,313 Part D claims and 190 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MICHAEL GIVERTZ, MD's credentials?
MICHAEL GIVERTZ, MD's NPI is 1265499560 with credentials MD. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology