2026 NPPES data Maternal & Fetal Medicine Physician NPI 1770756561 M.D., PH.D.
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KATHLEEN BROOKFIELD, M.D., PH.D.

Maternal & Fetal Medicine Physician in PORTLAND, 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
11
Medicare Part D claims · Maternal & Fetal Medicine Physician avg: 75
MIPS score
88.6735/100
▲ 6 pts above national avg 83.1 · [object Object]
What the federal data reveals: KATHLEEN BROOKFIELD, M.D., PH.D. is a Maternal & Fetal Medicine Physician ([object Object]) practicing in PORTLAND, Oregon with a Medicare Part D prescribing footprint of 11 claims . Their CMS MIPS Final Score of 88.6735/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: KATHLEEN BROOKFIELD, M.D., PH.D. reported a CMS MIPS final score of 88.6735 out of 100, above the 83.1 national average, and filed 11 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

KATHLEEN BROOKFIELD, M.D., PH.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

KATHLEEN BROOKFIELD, M.D., PH.D. at a glance

High performer (top quartile)

NPI registry status

Active

Issued 04/11/2008

NPI 1770756561

Primary specialty

Maternal & Fetal Medicine Physician

Niche

2,103 US NPIs in this specialty

Medicare Part D claims

11 85% vs specialty avg

2023 prescription claims

Specialty avg: 75

MIPS final score

88.6735/100 5.57350000000001% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Oregon

How Maternal & Fetal Medicine Physician compares to other specialties among Oregon providers

Oregon providers

Maternal & Fetal Medicine Physician share within Oregon

1. Maternal & Fetal Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Maternal & Fetal Medicine Physician share within Oregon

Medicare quality performance — MIPS

KATHLEEN BROOKFIELD, M.D., PH.D.'s 2023 MIPS final score plotted against the Maternal & Fetal Medicine Physician national average

High performer (top quartile)
MIPS Final Score
88.6735/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Maternal & Fetal Medicine Physician) — 88.6735/100 vs national avg 83.1

0%100%National avg83%88.7%
MIPS final score (Maternal & Fetal Medicine Physician) — 88.6735/100 vs national avg 83.1

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).

KATHLEEN BROOKFIELD, M.D., PH.D. is a Maternal & Fetal Medicine Physician provider practicing in PORTLAND, Oregon, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D., PH.D.. NPI: 1770756561. 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.

KATHLEEN BROOKFIELD, M.D., PH.D. appears in the CMS NPPES registry as a Maternal & Fetal Medicine Physician provider holding M.D., PH.D. credentials at 3181 SW SAM JACKSON PARK RD, PORTLAND, OR, 97239, with a listed phone of (503) 418-4200. NPI 1770756561 was issued on 04/11/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BROOKFIELD 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 11 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $920 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 88.6735/100 for the 2023 performance year (Quality 91.544, Cost 70.7008), compared with the national average of 83.1.

Maternal & Fetal Medicine Physician is a narrow specialty nationwide, with 2,103 enrolled providers across 52 states and an average of 75 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

3181 SW SAM JACKSON PARK RD
PORTLAND, OR 97239

Provider Details

NPI 1770756561
Specialty Maternal & Fetal Medicine Physician
Credentials M.D., PH.D.
Gender Female
NPI Issued 04/11/2008

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

88.6735
Final Score
Avg: 83.1
91.544
Quality
70.7008
Cost
100
Promoting Interoperability

Reporting: Group practice

Medicare Part D Prescribing Data

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

11
Total Claims
$920
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
13
Total Day Supply
329

Patient Demographics

Average Patient Age
32.5 years
Avg HCC Risk Score
0.93

Maternal & Fetal Medicine Physician Overview

How KATHLEEN BROOKFIELD, M.D., PH.D. fits within the Maternal & Fetal Medicine Physician landscape nationally.

2,103
Maternal & Fetal Medicine Physician Providers in US
52
States with Maternal & Fetal Medicine Physician
75
Avg Claims per Provider

KATHLEEN BROOKFIELD, M.D., PH.D.'s 11 claims are below the specialty average of 75.

Nearby Maternal & Fetal Medicine Physician Providers in Oregon

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

Compare Maternal & Fetal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is KATHLEEN BROOKFIELD, M.D., PH.D.'s specialty?
KATHLEEN BROOKFIELD, M.D., PH.D. specializes in Maternal & Fetal Medicine Physician and practices in PORTLAND, Oregon. Credentials: M.D., PH.D..
How much does KATHLEEN BROOKFIELD, M.D., PH.D. prescribe under Medicare Part D?
In 2023, KATHLEEN BROOKFIELD, M.D., PH.D. wrote 11 Medicare Part D claims totaling $920 in drug costs for N/A beneficiaries.
What is KATHLEEN BROOKFIELD, M.D., PH.D.'s Medicare quality score?
KATHLEEN BROOKFIELD, M.D., PH.D. has a CMS MIPS Final Score of 88.6735/100 (Quality: 91.544, Cost: 70.7008). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is KATHLEEN BROOKFIELD, M.D., PH.D. located?
KATHLEEN BROOKFIELD, M.D., PH.D. is located at 3181 SW SAM JACKSON PARK RD, PORTLAND, OR, 97239. Phone: (503) 418-4200.
What is KATHLEEN BROOKFIELD, M.D., PH.D.'s NPI number?
KATHLEEN BROOKFIELD, M.D., PH.D.'s National Provider Identifier (NPI) is 1770756561, issued on 04/11/2008.
How many Maternal & Fetal Medicine Physician providers are there in the US?
There are 2,103 Maternal & Fetal Medicine Physician providers across 52 states in the US. The average Maternal & Fetal Medicine Physician provider writes 75 Medicare Part D claims per year.
Does KATHLEEN BROOKFIELD, M.D., PH.D. accept Medicare?
KATHLEEN BROOKFIELD, M.D., PH.D. appears in CMS Medicare data with 11 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify KATHLEEN BROOKFIELD, M.D., PH.D.'s credentials?
KATHLEEN BROOKFIELD, M.D., PH.D.'s NPI is 1770756561 with credentials M.D., PH.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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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