2026 NPPES data Obstetrics & Gynecology Physician NPI 1386955037 M.D.
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CHIDIMMA ABANULO, M.D.

Obstetrics & Gynecology Physician in HILLSBORO, Oregon. 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
393
Medicare Part D claims · 110 beneficiaries · Obstetrics & Gynecology Physician avg: 179
Generic prescribing
76%
generic claims · 24% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$399.14
9 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: CHIDIMMA ABANULO, M.D. is a Obstetrics & Gynecology Physician ([object Object]) practicing in HILLSBORO, Oregon with a Medicare Part D prescribing footprint of 393 claims across 110 beneficiaries — 24% brand-name prescribing . Industry payments of $399.14 across 9 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: CHIDIMMA ABANULO, M.D. filed 393 Medicare Part D claims in 2023 across HILLSBORO, Oregon. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

CHIDIMMA ABANULO, M.D. 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).

CHIDIMMA ABANULO, M.D. at a glance

Quality data not reported

NPI registry status

Active

Issued 06/28/2010

NPI 1386955037

Primary specialty

Obstetrics & Gynecology Physician

Mid-sized

44,313 US NPIs in this specialty

Medicare Part D claims

393 120% vs specialty avg

2023 prescription claims

Specialty avg: 179

Specialty distribution in Oregon

How Obstetrics & Gynecology Physician compares to other specialties among Oregon providers

Oregon providers

Obstetrics & Gynecology Physician share within Oregon

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

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).

CHIDIMMA ABANULO, M.D. is a Obstetrics & Gynecology Physician provider practicing in HILLSBORO, Oregon, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1386955037. 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.

CHIDIMMA ABANULO, M.D. appears in the CMS NPPES registry as a Obstetrics & Gynecology Physician provider holding M.D. credentials at 5289 NE ELAM YOUNG PKWY STE 150, HILLSBORO, OR, 97124, with a listed phone of (971) 353-4925. NPI 1386955037 was issued on 06/28/2010. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what ABANULO 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 393 prescription claims written by this provider, covering 110 Medicare beneficiaries and totaling roughly $60K in drug spend, split 24% brand-name and 76% generic by claim count, with an opioid prescribing rate of 5.3%. 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

5289 NE ELAM YOUNG PKWY STE 150
HILLSBORO, OR 97124

Provider Details

NPI 1386955037
Specialty Obstetrics & Gynecology Physician
Credentials M.D.
Gender Female
NPI Issued 06/28/2010

Hospital and facility affiliations

Facilities where CHIDIMMA ABANULO, 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.

CHIDIMMA ABANULO, MD, LLC
HILLSBORO, OR

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 CHIDIMMA ABANULO, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$399

Largest payer

Axonics, 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

CHIDIMMA ABANULO, M.D. — brand share 24.0%
Specialty average (est.)

24% brand-name claims vs 76% generic, on 393 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.

393
Total Claims
$60K
Total Drug Cost
110
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
625
Total Day Supply
15,492
Brand vs Generic
24% brand / 76% generic
Brand Drug Cost
$46K
Generic Drug Cost
$15K
Opioid Claims
21 (5.3% rate)
Antibiotic Claims
113

Patient Demographics

Average Patient Age
75.2 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.

Drug Claims
Cephalexin
63
Estradiol
58
Myrbetriq
Mirabegron
54
Darifenacin Er
Darifenacin Hydrobromide
27
Nitrofurantoin Mono-Macro
Nitrofurantoin Monohyd/M-Cryst
19
Oxycodone Hcl
19
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
14
Amitriptyline Hcl
13
Clobetasol Propionate
13
Estring
Estradiol
13

* 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 CHIDIMMA ABANULO, M.D. 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

CHIDIMMA ABANULO, M.D.'s 393 claims are above the specialty average of 179.

Nearby Obstetrics & Gynecology Physician Providers in Oregon

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

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

Frequently Asked Questions

What is CHIDIMMA ABANULO, M.D.'s specialty?
CHIDIMMA ABANULO, M.D. specializes in Obstetrics & Gynecology Physician and practices in HILLSBORO, Oregon. Credentials: M.D..
How much does CHIDIMMA ABANULO, M.D. prescribe under Medicare Part D?
In 2023, CHIDIMMA ABANULO, M.D. wrote 393 Medicare Part D claims totaling $60K in drug costs for 110 beneficiaries.
Where is CHIDIMMA ABANULO, M.D. located?
CHIDIMMA ABANULO, M.D. is located at 5289 NE ELAM YOUNG PKWY STE 150, HILLSBORO, OR, 97124. Phone: (971) 353-4925.
What is CHIDIMMA ABANULO, M.D.'s NPI number?
CHIDIMMA ABANULO, M.D.'s National Provider Identifier (NPI) is 1386955037, issued on 06/28/2010.
Does CHIDIMMA ABANULO, M.D. prescribe more brand-name or generic drugs?
CHIDIMMA ABANULO, M.D.'s prescribing is 24% brand-name and 76% generic drugs by claim count, with $46K in brand drug costs.
Does CHIDIMMA ABANULO, M.D. prescribe opioids?
Yes, CHIDIMMA ABANULO, M.D. had 21 opioid claims in 2023 with an opioid prescribing rate of 5.3%.
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 CHIDIMMA ABANULO, M.D. prescribe most often?
Based on 2023 Medicare Part D data, CHIDIMMA ABANULO, M.D.'s most frequently prescribed drugs include Cephalexin, Estradiol, Myrbetriq. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHIDIMMA ABANULO, M.D. accept Medicare?
CHIDIMMA ABANULO, M.D. appears in CMS Medicare data with 393 Part D claims and 110 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHIDIMMA ABANULO, M.D.'s credentials?
CHIDIMMA ABANULO, M.D.'s NPI is 1386955037 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.
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