2026 NPPES data Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician NPI 1932555638 M.D.
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ANTHONY GRIEFF, M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in KANSAS CITY, Missouri. 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
194
Medicare Part D claims · 68 beneficiaries · Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician avg: 128
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
96.6792/100
▲ 14 pts above national avg 83.1 · [object Object]
Industry payments
$8.9K
39 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: ANTHONY GRIEFF, M.D. is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician ([object Object]) practicing in KANSAS CITY, Missouri with a Medicare Part D prescribing footprint of 194 claims across 68 beneficiaries — 9% brand-name prescribing . Their CMS MIPS Final Score of 96.6792/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $8.9K across 39 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: ANTHONY GRIEFF, M.D. reported a CMS MIPS final score of 96.6792 out of 100, above the 83.1 national average, and filed 194 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

ANTHONY GRIEFF, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

ANTHONY GRIEFF, M.D. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 05/11/2016

NPI 1932555638

Primary specialty

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician

Mid-sized

5,062 US NPIs in this specialty

Medicare Part D claims

194 52% vs specialty avg

2023 prescription claims

Specialty avg: 128

MIPS final score

96.6792/100 13.5792% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Missouri

How Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician compares to other specialties among Missouri providers

Missouri providers

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician share within Missouri

1. Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician share within Missouri

Medicare quality performance — MIPS

ANTHONY GRIEFF, M.D.'s 2023 MIPS final score plotted against the Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician national average

High performer (top quartile)
MIPS Final Score
96.6792/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician) — 96.6792/100 vs national avg 83.1

0%100%National avg83%96.7%
MIPS final score (Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician) — 96.6792/100 vs national avg 83.1

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).

ANTHONY GRIEFF, M.D. is a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider practicing in KANSAS CITY, Missouri, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1932555638. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

ANTHONY GRIEFF, M.D. appears in the CMS NPPES registry as a Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider holding M.D. credentials at 4330 WORNALL RD STE 50, KANSAS CITY, MO, 64111, with a listed phone of (816) 931-3312. NPI 1932555638 was issued on 05/11/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GRIEFF 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 194 prescription claims written by this provider, covering 68 Medicare beneficiaries and totaling roughly $20K in drug spend, split 9% brand-name and 91% generic by claim count, with an opioid prescribing rate of 17.5%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 96.6792/100 for the 2023 performance year (Quality 94.9469, Cost 79.7038), compared with the national average of 83.1.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician is a mid-sized specialty nationwide, with 5,062 enrolled providers across 52 states and an average of 128 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

4330 WORNALL RD STE 50
KANSAS CITY, MO 64111

Provider Details

NPI 1932555638
Specialty Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
Credentials M.D.
Gender Male
NPI Issued 05/11/2016

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

96.6792
Final Score
Avg: 83.1
94.9469
Quality
79.7038
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where ANTHONY GRIEFF, M.D. 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.

HEART SURGEONS OF KANSAS CITY INC
LEES SUMMIT, MO

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 ANTHONY GRIEFF, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$8.9K

Largest payer

Integra 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.

Brand vs generic prescribing mix · Generic-heavy

ANTHONY GRIEFF, M.D. — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 194 2023 Medicare Part D claims.

The federal Medicare Part D Generic Dispensing Rate national benchmark sits near 90% generic / 10% brand for primary-care prescribers, per CMS Office of the Actuary 2024 estimates. Higher brand share is common in specialty prescribing where generic equivalents are not available.

Medicare Part D Prescribing Data

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

194
Total Claims
$20K
Total Drug Cost
68
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
347
Total Day Supply
9,200
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$16K
Generic Drug Cost
$3K
Opioid Claims
34 (17.5% rate)

Patient Demographics

Average Patient Age
71.0 years
Avg HCC Risk Score
2.26
Gender Split
44% female / 56% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Clopidogrel
Clopidogrel Bisulfate
49
Cilostazol
22
Atorvastatin Calcium
18
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
12
Eliquis
Apixaban
11
Oxycodone Hcl
11

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

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Overview

How ANTHONY GRIEFF, M.D. fits within the Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician landscape nationally.

5,062
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Providers in US
52
States with Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician
128
Avg Claims per Provider

ANTHONY GRIEFF, M.D.'s 194 claims are above the specialty average of 128.

Nearby Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician Providers in Missouri

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

Compare Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is ANTHONY GRIEFF, M.D.'s specialty?
ANTHONY GRIEFF, M.D. specializes in Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician and practices in KANSAS CITY, Missouri. Credentials: M.D..
How much does ANTHONY GRIEFF, M.D. prescribe under Medicare Part D?
In 2023, ANTHONY GRIEFF, M.D. wrote 194 Medicare Part D claims totaling $20K in drug costs for 68 beneficiaries.
What is ANTHONY GRIEFF, M.D.'s Medicare quality score?
ANTHONY GRIEFF, M.D. has a CMS MIPS Final Score of 96.6792/100 (Quality: 94.9469, Cost: 79.7038). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ANTHONY GRIEFF, M.D. located?
ANTHONY GRIEFF, M.D. is located at 4330 WORNALL RD STE 50, KANSAS CITY, MO, 64111. Phone: (816) 931-3312.
What is ANTHONY GRIEFF, M.D.'s NPI number?
ANTHONY GRIEFF, M.D.'s National Provider Identifier (NPI) is 1932555638, issued on 05/11/2016.
Does ANTHONY GRIEFF, M.D. prescribe more brand-name or generic drugs?
ANTHONY GRIEFF, M.D.'s prescribing is 9% brand-name and 91% generic drugs by claim count, with $16K in brand drug costs.
Does ANTHONY GRIEFF, M.D. prescribe opioids?
Yes, ANTHONY GRIEFF, M.D. had 34 opioid claims in 2023 with an opioid prescribing rate of 17.5%.
How many Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers are there in the US?
There are 5,062 Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers across 52 states in the US. The average Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician provider writes 128 Medicare Part D claims per year.
What drugs does ANTHONY GRIEFF, M.D. prescribe most often?
Based on 2023 Medicare Part D data, ANTHONY GRIEFF, M.D.'s most frequently prescribed drugs include Clopidogrel, Cilostazol, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ANTHONY GRIEFF, M.D. accept Medicare?
ANTHONY GRIEFF, M.D. appears in CMS Medicare data with 194 Part D claims and 68 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ANTHONY GRIEFF, M.D.'s credentials?
ANTHONY GRIEFF, M.D.'s NPI is 1932555638 with credentials M.D.. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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