2026 NPPES data Obstetrics & Gynecology Nurse Practitioner NPI 1548666274 WHNP/MSN
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ABIGAIL BARTOLO-COSTELLO, WHNP/MSN

Obstetrics & Gynecology Nurse Practitioner in IOWA CITY, Iowa. 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
422
Medicare Part D claims · 150 beneficiaries · Obstetrics & Gynecology Nurse Practitioner avg: 232
Generic prescribing
67%
generic claims · 33% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

ABIGAIL BARTOLO-COSTELLO, WHNP/MSN filed 422 Medicare Part D claims in 2023 as a Obstetrics & Gynecology Nurse Practitioner in IOWA CITY, Iowa, prescribing 67% generic.

422
Part D claims, 2023
67%
generic prescribing

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.

ABIGAIL BARTOLO-COSTELLO, WHNP/MSN's Medicare Part D volume vs every U.S. prescriber

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

422 Top 38% higher than 62% 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%). This entry sits in this band. 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 ABIGAIL BARTOLO-COSTELLO, WHNP/MSN?

Quality data not reported

NPI registry status

Active

Issued 11/06/2014

NPI 1548666274

Primary specialty

Obstetrics & Gynecology Nurse Practitioner

Niche

2,864 US NPIs in this specialty

Medicare Part D claims

422 82% vs specialty avg

2023 prescription claims

Specialty avg: 232

Specialty distribution in Iowa

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

Iowa providers

Obstetrics & Gynecology Nurse Practitioner share within Iowa

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

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).

ABIGAIL BARTOLO-COSTELLO, WHNP/MSN appears in the CMS NPPES registry as a Obstetrics & Gynecology Nurse Practitioner provider holding WHNP/MSN credentials at 200 HAWKINS DR, IOWA CITY, IA, 52242, with a listed phone of (319) 356-2294. NPI 1548666274 was issued on 11/06/2014. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BARTOLO-COSTELLO 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 422 prescription claims written by this provider, covering 150 Medicare beneficiaries and totaling roughly $92K in drug spend, split 33% brand-name and 67% 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

200 HAWKINS DR
IOWA CITY, IA 52242

Provider Details

NPI 1548666274
Specialty Obstetrics & Gynecology Nurse Practitioner
Credentials WHNP/MSN
Gender Female
NPI Issued 11/06/2014

Hospital and facility affiliations

Facilities where ABIGAIL BARTOLO-COSTELLO, WHNP/MSN 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.

STATE UNIVERSITY OF IOWA
IOWA CITY, IA

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 · Above average

ABIGAIL BARTOLO-COSTELLO, WHNP/MSN — brand share 33.0%
Specialty average (est.)

33% brand-name claims vs 67% generic, on 422 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.

422
Total Claims
$92K
Total Drug Cost
150
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
716
Total Day Supply
19,359
Brand vs Generic
33% brand / 67% generic
Brand Drug Cost
$75K
Generic Drug Cost
$16K
Antibiotic Claims
51

Patient Demographics

Average Patient Age
73.4 years
Avg HCC Risk Score
1.13
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 ABIGAIL BARTOLO-COSTELLO, WHNP/MSN 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
Myrbetriq
Mirabegron
67
Estradiol
62
Triamcinolone Acetonide
57
Oxybutynin Chloride Er
Oxybutynin Chloride
31
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
20
Norethindrone Acetate
14
Premarin
"Estrogens
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 ABIGAIL BARTOLO-COSTELLO, WHNP/MSN 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

ABIGAIL BARTOLO-COSTELLO, WHNP/MSN's 422 claims are above the specialty average of 232.

Nearby Obstetrics & Gynecology Nurse Practitioner Providers in Iowa

Other clinicians with the same primary specialty enrolled in Iowa, drawn from the same CMS NPPES roster as BARTOLO-COSTELLO.

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

Frequently Asked Questions

What is ABIGAIL BARTOLO-COSTELLO, WHNP/MSN's specialty?
ABIGAIL BARTOLO-COSTELLO, WHNP/MSN specializes in Obstetrics & Gynecology Nurse Practitioner and practices in IOWA CITY, Iowa. Credentials: WHNP/MSN.
How much does ABIGAIL BARTOLO-COSTELLO, WHNP/MSN prescribe under Medicare Part D?
In 2023, ABIGAIL BARTOLO-COSTELLO, WHNP/MSN wrote 422 Medicare Part D claims totaling $92K in drug costs for 150 beneficiaries.
Where is ABIGAIL BARTOLO-COSTELLO, WHNP/MSN located?
ABIGAIL BARTOLO-COSTELLO, WHNP/MSN is located at 200 HAWKINS DR, IOWA CITY, IA, 52242. Phone: (319) 356-2294.
What is ABIGAIL BARTOLO-COSTELLO, WHNP/MSN's NPI number?
ABIGAIL BARTOLO-COSTELLO, WHNP/MSN's National Provider Identifier (NPI) is 1548666274, issued on 11/06/2014.
Does ABIGAIL BARTOLO-COSTELLO, WHNP/MSN prescribe more brand-name or generic drugs?
ABIGAIL BARTOLO-COSTELLO, WHNP/MSN's prescribing is 33% brand-name and 67% generic drugs by claim count, with $75K 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 ABIGAIL BARTOLO-COSTELLO, WHNP/MSN prescribe most often?
Based on 2023 Medicare Part D data, ABIGAIL BARTOLO-COSTELLO, WHNP/MSN's most frequently prescribed drugs include Myrbetriq, Estradiol, Triamcinolone Acetonide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ABIGAIL BARTOLO-COSTELLO, WHNP/MSN accept Medicare?
ABIGAIL BARTOLO-COSTELLO, WHNP/MSN appears in CMS Medicare data with 422 Part D claims and 150 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ABIGAIL BARTOLO-COSTELLO, WHNP/MSN's credentials?
ABIGAIL BARTOLO-COSTELLO, WHNP/MSN's NPI is 1548666274 with credentials WHNP/MSN. 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