2026 NPPES data Endocrinology, Diabetes & Metabolism Physician NPI 1659472363 M.D.
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GREGG KOVAL, M.D.

Endocrinology, Diabetes & Metabolism Physician in ATLANTA, Georgia. 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
5K
Medicare Part D claims · 314 beneficiaries · Endocrinology, Diabetes & Metabolism Physician avg: 3K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.1 · [object Object]
Industry payments
$1.1K
60 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: GREGG KOVAL, M.D. is a Endocrinology, Diabetes & Metabolism Physician ([object Object]) practicing in ATLANTA, Georgia with a Medicare Part D prescribing footprint of 5K claims across 314 beneficiaries — 14% brand-name prescribing . Their CMS MIPS Final Score of 100/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $1.1K across 60 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: GREGG KOVAL, M.D. reported a CMS MIPS final score of 100 out of 100, above the 83.1 national average, and filed 5,070 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)

GREGG KOVAL, 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).

GREGG KOVAL, M.D. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 09/26/2006

NPI 1659472363

Primary specialty

Endocrinology, Diabetes & Metabolism Physician

Mid-sized

7,852 US NPIs in this specialty

Medicare Part D claims

5,070 92% vs specialty avg

2023 prescription claims

Specialty avg: 2,639

MIPS final score

100/100 16.900000000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Georgia

How Endocrinology, Diabetes & Metabolism Physician compares to other specialties among Georgia providers

Georgia providers

Endocrinology, Diabetes & Metabolism Physician share within Georgia

1. Endocrinology, Diabetes & Metabolism Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Endocrinology, Diabetes & Metabolism Physician share within Georgia

Medicare quality performance — MIPS

GREGG KOVAL, M.D.'s 2023 MIPS final score plotted against the Endocrinology, Diabetes & Metabolism Physician national average

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

MIPS final score (Endocrinology, Diabetes & Metabolism Physician) — 100/100 vs national avg 83.1

0%100%National avg83%99%
MIPS final score (Endocrinology, Diabetes & Metabolism Physician) — 100/100 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).

GREGG KOVAL, M.D. is a Endocrinology, Diabetes & Metabolism Physician provider practicing in ATLANTA, Georgia, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1659472363. 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.

GREGG KOVAL, M.D. appears in the CMS NPPES registry as a Endocrinology, Diabetes & Metabolism Physician provider holding M.D. credentials at 5667 PEACHTREE DUNWOODY ROAD, ATLANTA, GA, 30342, with a listed phone of (404) 256-0775. NPI 1659472363 was issued on 09/26/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what KOVAL 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 5,070 prescription claims written by this provider, covering 314 Medicare beneficiaries and totaling roughly $583K in drug spend, split 14% brand-name and 86% generic by claim count, with an opioid prescribing rate of 0.9%. 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 100/100 for the 2023 performance year, compared with the national average of 83.1.

Endocrinology, Diabetes & Metabolism Physician is a mid-sized specialty nationwide, with 7,852 enrolled providers across 54 states and an average of 2,639 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

5667 PEACHTREE DUNWOODY ROAD
ATLANTA, GA 30342

Provider Details

NPI 1659472363
Specialty Endocrinology, Diabetes & Metabolism Physician
Credentials M.D.
Gender Male
NPI Issued 09/26/2006

CMS Quality Score (MIPS)

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

100
Final Score
Avg: 83.1
100
Promoting Interoperability

Reporting: Individual

Hospital and facility affiliations

Facilities where GREGG KOVAL, 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.

CENTER FOR MEDICINE ENDOCRINOLOGY AND DIABETES LLC
ATLANTA, GA

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 GREGG KOVAL, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$1.1K

Largest payer

ABBVIE INC.

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 · Typical

GREGG KOVAL, M.D. — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 5,070 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.

5,070
Total Claims
$583K
Total Drug Cost
314
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
12,317
Total Day Supply
362,471
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$471K
Generic Drug Cost
$110K
Opioid Claims
44 (0.9% rate)
Antibiotic Claims
98

Patient Demographics

Average Patient Age
78.7 years
Avg HCC Risk Score
1.16
Gender Split
46% female / 54% 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
Atorvastatin Calcium
301
Amlodipine Besylate
291
Rosuvastatin Calcium
284
Levothyroxine Sodium
219
Losartan Potassium
200
Pravastatin Sodium
124
Trazodone Hcl
100
Metoprolol Succinate
95
Metformin Hcl Er
Metformin Hcl
87
Eliquis
Apixaban
81

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

Endocrinology, Diabetes & Metabolism Physician Overview

How GREGG KOVAL, M.D. fits within the Endocrinology, Diabetes & Metabolism Physician landscape nationally.

7,852
Endocrinology, Diabetes & Metabolism Physician Providers in US
54
States with Endocrinology, Diabetes & Metabolism Physician
2,639
Avg Claims per Provider

GREGG KOVAL, M.D.'s 5,070 claims are above the specialty average of 2,639.

Nearby Endocrinology, Diabetes & Metabolism Physician Providers in Georgia

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

Compare Endocrinology, Diabetes & Metabolism Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GREGG KOVAL, M.D.'s specialty?
GREGG KOVAL, M.D. specializes in Endocrinology, Diabetes & Metabolism Physician and practices in ATLANTA, Georgia. Credentials: M.D..
How much does GREGG KOVAL, M.D. prescribe under Medicare Part D?
In 2023, GREGG KOVAL, M.D. wrote 5,070 Medicare Part D claims totaling $583K in drug costs for 314 beneficiaries.
What is GREGG KOVAL, M.D.'s Medicare quality score?
GREGG KOVAL, M.D. has a CMS MIPS Final Score of 100/100. The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is GREGG KOVAL, M.D. located?
GREGG KOVAL, M.D. is located at 5667 PEACHTREE DUNWOODY ROAD, ATLANTA, GA, 30342. Phone: (404) 256-0775.
What is GREGG KOVAL, M.D.'s NPI number?
GREGG KOVAL, M.D.'s National Provider Identifier (NPI) is 1659472363, issued on 09/26/2006.
Does GREGG KOVAL, M.D. prescribe more brand-name or generic drugs?
GREGG KOVAL, M.D.'s prescribing is 14% brand-name and 86% generic drugs by claim count, with $471K in brand drug costs.
Does GREGG KOVAL, M.D. prescribe opioids?
Yes, GREGG KOVAL, M.D. had 44 opioid claims in 2023 with an opioid prescribing rate of 0.9%.
How many Endocrinology, Diabetes & Metabolism Physician providers are there in the US?
There are 7,852 Endocrinology, Diabetes & Metabolism Physician providers across 54 states in the US. The average Endocrinology, Diabetes & Metabolism Physician provider writes 2,639 Medicare Part D claims per year.
What drugs does GREGG KOVAL, M.D. prescribe most often?
Based on 2023 Medicare Part D data, GREGG KOVAL, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Rosuvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GREGG KOVAL, M.D. accept Medicare?
GREGG KOVAL, M.D. appears in CMS Medicare data with 5,070 Part D claims and 314 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GREGG KOVAL, M.D.'s credentials?
GREGG KOVAL, M.D.'s NPI is 1659472363 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