2026 NPPES data Obstetrics & Gynecology Nurse Practitioner NPI 1730270463 ARNP
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CATHERINE GARDNER, ARNP

Obstetrics & Gynecology Nurse Practitioner in OKLAHOMA CITY, Oklahoma. 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
185
Medicare Part D claims · 40 beneficiaries · Obstetrics & Gynecology Nurse Practitioner avg: 232
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$805.04
18 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

CATHERINE GARDNER, ARNP filed 185 Medicare Part D claims in 2023 as a Obstetrics & Gynecology Nurse Practitioner in OKLAHOMA CITY, Oklahoma, prescribing 78% generic.

185
Part D claims, 2023
78%
generic prescribing
$805.04
industry payments (Sunshine Act)

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.

CATHERINE GARDNER, ARNP's Medicare Part D volume vs every U.S. prescriber

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

185 35th percentile higher than 35% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 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

What does the federal data show about CATHERINE GARDNER, ARNP?

Quality data not reported

NPI registry status

Active

Issued 09/27/2006

NPI 1730270463

Primary specialty

Obstetrics & Gynecology Nurse Practitioner

Niche

2,864 US NPIs in this specialty

Medicare Part D claims

185 20% vs specialty avg

2023 prescription claims

Specialty avg: 232

Specialty distribution in Oklahoma

How Obstetrics & Gynecology Nurse Practitioner compares to other specialties among Oklahoma providers

Oklahoma providers

Obstetrics & Gynecology Nurse Practitioner share within Oklahoma

1. Obstetrics & Gynecology Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Obstetrics & Gynecology Nurse Practitioner share within Oklahoma

Specialty board-certification context

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

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

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

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

CATHERINE GARDNER, ARNP appears in the CMS NPPES registry as a Obstetrics & Gynecology Nurse Practitioner provider holding ARNP credentials at 11220 N ROCKWELL AVE, OKLAHOMA CITY, OK, 73162, with a listed phone of (405) 632-6688. NPI 1730270463 was issued on 09/27/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what GARDNER 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 185 prescription claims written by this provider, covering 40 Medicare beneficiaries and totaling roughly $23K in drug spend, split 22% brand-name and 78% 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 Nurse Practitioner is a narrow specialty nationwide, with 2,864 enrolled providers across 52 states and an average of 232 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

11220 N ROCKWELL AVE
OKLAHOMA CITY, OK 73162

Provider Details

NPI 1730270463
Specialty Obstetrics & Gynecology Nurse Practitioner
Credentials ARNP
Gender Female
NPI Issued 09/27/2006

Hospital and facility affiliations

Facilities where CATHERINE GARDNER, ARNP 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.

VARIETY CARE, INC.
OKLAHOMA CITY, OK

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 CATHERINE GARDNER, ARNP. Source: openpaymentsdata.cms.gov.

Total received

$805

Largest payer

AstraZeneca Pharmaceuticals LP

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

CATHERINE GARDNER, ARNP — brand share 22.0%
Specialty average (est.)

22% brand-name claims vs 78% generic, on 185 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.

185
Total Claims
$23K
Total Drug Cost
40
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
464
Total Day Supply
13,464
Brand vs Generic
22% brand / 78% generic
Brand Drug Cost
$15K
Generic Drug Cost
$8K
Antibiotic Claims
13

Patient Demographics

Average Patient Age
62.4 years
Avg HCC Risk Score
1.00
Gender Split
100% female / 0% male
Age Distribution
<65: 15, 65-74: 21, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

What CATHERINE GARDNER, ARNP 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
Levothyroxine Sodium
31
Estradiol
13
Estradiol (Twice Weekly)
Estradiol
12
Progesterone
"Progesterone
N/A

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

Obstetrics & Gynecology Nurse Practitioner Overview

How CATHERINE GARDNER, ARNP fits within the Obstetrics & Gynecology Nurse Practitioner landscape nationally.

2,864
Obstetrics & Gynecology Nurse Practitioner Providers in US
52
States with Obstetrics & Gynecology Nurse Practitioner
232
Avg Claims per Provider

CATHERINE GARDNER, ARNP's 185 claims are below the specialty average of 232.

Nearby Obstetrics & Gynecology Nurse Practitioner Providers in Oklahoma

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

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

Frequently Asked Questions

What is CATHERINE GARDNER, ARNP's specialty?
CATHERINE GARDNER, ARNP specializes in Obstetrics & Gynecology Nurse Practitioner and practices in OKLAHOMA CITY, Oklahoma. Credentials: ARNP.
How much does CATHERINE GARDNER, ARNP prescribe under Medicare Part D?
In 2023, CATHERINE GARDNER, ARNP wrote 185 Medicare Part D claims totaling $23K in drug costs for 40 beneficiaries.
Where is CATHERINE GARDNER, ARNP located?
CATHERINE GARDNER, ARNP is located at 11220 N ROCKWELL AVE, OKLAHOMA CITY, OK, 73162. Phone: (405) 632-6688.
What is CATHERINE GARDNER, ARNP's NPI number?
CATHERINE GARDNER, ARNP's National Provider Identifier (NPI) is 1730270463, issued on 09/27/2006.
Does CATHERINE GARDNER, ARNP prescribe more brand-name or generic drugs?
CATHERINE GARDNER, ARNP's prescribing is 22% brand-name and 78% generic drugs by claim count, with $15K in brand drug costs.
How many Obstetrics & Gynecology Nurse Practitioner providers are there in the US?
There are 2,864 Obstetrics & Gynecology Nurse Practitioner providers across 52 states in the US. The average Obstetrics & Gynecology Nurse Practitioner provider writes 232 Medicare Part D claims per year.
What drugs does CATHERINE GARDNER, ARNP prescribe most often?
Based on 2023 Medicare Part D data, CATHERINE GARDNER, ARNP's most frequently prescribed drugs include Levothyroxine Sodium, Estradiol, Estradiol (Twice Weekly). This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CATHERINE GARDNER, ARNP accept Medicare?
CATHERINE GARDNER, ARNP appears in CMS Medicare data with 185 Part D claims and 40 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CATHERINE GARDNER, ARNP's credentials?
CATHERINE GARDNER, ARNP's NPI is 1730270463 with credentials ARNP. 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