2026 NPPES data Obstetrics & Gynecology Physician NPI 1225122211 MD
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CHERYL STONER, MD

Obstetrics & Gynecology Physician in GREENVILLE, South Carolina. 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
2K
Medicare Part D claims · 409 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

CHERYL STONER, MD filed 1,641 Medicare Part D claims in 2023 as a Obstetrics & Gynecology Physician in GREENVILLE, South Carolina, prescribing 89% generic.

2K
Part D claims, 2023
89%
generic prescribing
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.

CHERYL STONER, MD's Medicare Part D volume vs every U.S. prescriber

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

1,641 Top 18% higher than 82% 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%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). This entry sits in this band. 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)

CHERYL STONER, 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 CHERYL STONER, MD?

Quality data not reported

NPI registry status

Active

Issued 10/03/2006

NPI 1225122211

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

1,641 817% vs specialty avg

2023 prescription claims

Specialty avg: 179

Specialty distribution in South Carolina

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

South Carolina providers

Obstetrics & Gynecology Physician share within South Carolina

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

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).

CHERYL STONER, MD appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding MD credentials at 135 COMMONWEALTH DR, GREENVILLE, SC, 29615, with a listed phone of (864) 675-1190. NPI 1225122211 was issued on 10/03/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what STONER 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 1,641 prescription claims written by this provider, covering 409 Medicare beneficiaries and totaling roughly $134K in drug spend, split 11% brand-name and 89% generic by claim count. 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

135 COMMONWEALTH DR
GREENVILLE, SC 29615

Provider Details

NPI 1225122211
Specialty Obstetrics & Gynecology Physician
Credentials MD
Gender Female
NPI Issued 10/03/2006

Hospital and facility affiliations

Facilities where CHERYL STONER, 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.

BON SECOURS MEDICAL GROUP GREENVILLE SPECIALTY CARE LLC
GREENVILLE, SC

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

Brand vs generic prescribing mix · Typical

CHERYL STONER, MD — brand share 11.0%
Specialty average (est.)

11% brand-name claims vs 89% generic, on 1,641 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.

1,641
Total Claims
$134K
Total Drug Cost
409
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
3,195
Total Day Supply
86,431
Brand vs Generic
11% brand / 89% generic
Brand Drug Cost
$64K
Generic Drug Cost
$69K
Antibiotic Claims
70

Patient Demographics

Average Patient Age
69.1 years
Avg HCC Risk Score
0.82
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.

What CHERYL STONER, 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
Estradiol
558
Fluconazole
217
Medroxyprogesterone Acetate
66
Valacyclovir
Valacyclovir Hcl
62
Clobetasol Propionate
52
Zolpidem Tartrate
45
Yuvafem
Estradiol
44
Estradiol (Twice Weekly)
Estradiol
40
Terconazole
39
Nystatin-Triamcinolone
Nystatin/Triamcinolone Acet
37

* 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 CHERYL STONER, 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

CHERYL STONER, MD's 1,641 claims are above the specialty average of 179.

Nearby Obstetrics & Gynecology Physician Providers in South Carolina

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

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

Frequently Asked Questions

What is CHERYL STONER, MD's specialty?
CHERYL STONER, MD specializes in Obstetrics & Gynecology Physician and practices in GREENVILLE, South Carolina. Credentials: MD.
How much does CHERYL STONER, MD prescribe under Medicare Part D?
In 2023, CHERYL STONER, MD wrote 1,641 Medicare Part D claims totaling $134K in drug costs for 409 beneficiaries.
Where is CHERYL STONER, MD located?
CHERYL STONER, MD is located at 135 COMMONWEALTH DR, GREENVILLE, SC, 29615. Phone: (864) 675-1190.
What is CHERYL STONER, MD's NPI number?
CHERYL STONER, MD's National Provider Identifier (NPI) is 1225122211, issued on 10/03/2006.
Does CHERYL STONER, MD prescribe more brand-name or generic drugs?
CHERYL STONER, MD's prescribing is 11% brand-name and 89% generic drugs by claim count, with $64K in brand drug costs.
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 CHERYL STONER, MD prescribe most often?
Based on 2023 Medicare Part D data, CHERYL STONER, MD's most frequently prescribed drugs include Estradiol, Fluconazole, Medroxyprogesterone Acetate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHERYL STONER, MD accept Medicare?
CHERYL STONER, MD appears in CMS Medicare data with 1,641 Part D claims and 409 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHERYL STONER, MD's credentials?
CHERYL STONER, MD's NPI is 1225122211 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