2026 NPPES data Obstetrics & Gynecology Physician NPI 1043378912 MD
Verify on CMS →

GREGG CARLSON, MD

Obstetrics & Gynecology Physician in ABERDEEN, South Dakota. 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
169
Medicare Part D claims · 45 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Industry payments
$58.89
2 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: GREGG CARLSON, MD is a Obstetrics & Gynecology Physician ([object Object]) practicing in ABERDEEN, South Dakota with a Medicare Part D prescribing footprint of 169 claims across 45 beneficiaries . Industry payments of $58.89 across 2 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: GREGG CARLSON, MD filed 169 Medicare Part D claims in 2023 across ABERDEEN, South Dakota. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

GREGG CARLSON, 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).

GREGG CARLSON, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 12/04/2006

NPI 1043378912

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

169 6% vs specialty avg

2023 prescription claims

Specialty avg: 179

Specialty distribution in South Dakota

How Obstetrics & Gynecology Physician compares to other specialties among South Dakota providers

South Dakota providers

Obstetrics & Gynecology Physician share within South Dakota

1. Obstetrics & Gynecology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Obstetrics & Gynecology Physician share within South Dakota

Specialty board-certification context

Estimated specialty board-certified rate — Obstetrics & Gynecology Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Obstetrics & Gynecology Physician ABMS/AOA estimate

Est. board-certified rate (Obstetrics & Gynecology Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Obstetrics & Gynecology 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).

GREGG CARLSON, MD is a Obstetrics & Gynecology Physician provider practicing in ABERDEEN, South Dakota, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1043378912. 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 CARLSON, MD appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding MD credentials at 310 S PENN ST, ABERDEEN, SD, 57401, with a listed phone of (605) 225-1636. NPI 1043378912 was issued on 12/04/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CARLSON 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 169 prescription claims written by this provider, covering 45 Medicare beneficiaries and totaling roughly $16K 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.

Obstetrics & Gynecology Physician is a mid-sized specialty nationwide, with 44,313 enrolled providers across 56 states and an average of 179 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

310 S PENN ST
ABERDEEN, SD 57401

Provider Details

NPI 1043378912
Specialty Obstetrics & Gynecology Physician
Credentials MD
Gender Male
NPI Issued 12/04/2006

Hospital and facility affiliations

Facilities where GREGG CARLSON, 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.

AVERA ST LUKES
★★★★☆ 4/5
ABERDEEN, SD
Acute Care Hospitals
CMS CCN: 430014

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 CARLSON, MD. Source: openpaymentsdata.cms.gov.

Total received

$59

Largest payer

Astellas Pharma US 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.

Medicare Part D Prescribing Data

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

169
Total Claims
$16K
Total Drug Cost
45
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
327
Total Day Supply
9,310
Generic Drug Cost
$14K

Patient Demographics

Average Patient Age
70.0 years
Avg HCC Risk Score
0.97
Gender Split
100% female / 0% 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
Estradiol
33
Oxybutynin Chloride Er
Oxybutynin Chloride
24
Gabapentin
20
Clobetasol Propionate
11

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

Obstetrics & Gynecology Physician Overview

How GREGG CARLSON, MD fits within the Obstetrics & Gynecology Physician landscape nationally.

44,313
Obstetrics & Gynecology Physician Providers in US
56
States with Obstetrics & Gynecology Physician
179
Avg Claims per Provider

GREGG CARLSON, MD's 169 claims are below the specialty average of 179.

Nearby Obstetrics & Gynecology Physician Providers in South Dakota

Other clinicians with the same primary specialty enrolled in South Dakota, drawn from the same CMS NPPES roster as CARLSON.

Compare Obstetrics & Gynecology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is GREGG CARLSON, MD's specialty?
GREGG CARLSON, MD specializes in Obstetrics & Gynecology Physician and practices in ABERDEEN, South Dakota. Credentials: MD.
How much does GREGG CARLSON, MD prescribe under Medicare Part D?
In 2023, GREGG CARLSON, MD wrote 169 Medicare Part D claims totaling $16K in drug costs for 45 beneficiaries.
Where is GREGG CARLSON, MD located?
GREGG CARLSON, MD is located at 310 S PENN ST, ABERDEEN, SD, 57401. Phone: (605) 225-1636.
What is GREGG CARLSON, MD's NPI number?
GREGG CARLSON, MD's National Provider Identifier (NPI) is 1043378912, issued on 12/04/2006.
How many Obstetrics & Gynecology Physician providers are there in the US?
There are 44,313 Obstetrics & Gynecology Physician providers across 56 states in the US. The average Obstetrics & Gynecology Physician provider writes 179 Medicare Part D claims per year.
What drugs does GREGG CARLSON, MD prescribe most often?
Based on 2023 Medicare Part D data, GREGG CARLSON, MD's most frequently prescribed drugs include Estradiol, Oxybutynin Chloride Er, Gabapentin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does GREGG CARLSON, MD accept Medicare?
GREGG CARLSON, MD appears in CMS Medicare data with 169 Part D claims and 45 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify GREGG CARLSON, MD's credentials?
GREGG CARLSON, MD's NPI is 1043378912 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