2026 NPPES data Sleep Medicine (Internal Medicine) Physician NPI 1154716900 D.O.
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CHLOE MANCHESTER, D.O.

Sleep Medicine (Internal 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
229
Medicare Part D claims · 106 beneficiaries · Sleep Medicine (Internal Medicine) Physician avg: 1K
MIPS score
97.83/100
▲ 15 pts above national avg 83.1 · [object Object]

What the federal data shows

CHLOE MANCHESTER, D.O. reported a CMS MIPS final score of 97.83/100 — above the 83.1 national average — and filed 229 Medicare Part D claims in 2023.

97.83/100
MIPS score · +15 vs avg
229
Part D claims, 2023
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.

CHLOE MANCHESTER, D.O.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

98 Top 15% higher than 85% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

CHLOE MANCHESTER, D.O. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 CHLOE MANCHESTER, D.O.?

High performer (top quartile)

NPI registry status

Active

Issued 03/30/2015

NPI 1154716900

Primary specialty

Sleep Medicine (Internal Medicine) Physician

Niche

857 US NPIs in this specialty

Medicare Part D claims

229 83% vs specialty avg

2023 prescription claims

Specialty avg: 1,310

MIPS final score

97.83/100 14.730000000000004% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Oregon

How Sleep Medicine (Internal Medicine) Physician compares to other specialties among Oregon providers

Oregon providers

Sleep Medicine (Internal Medicine) Physician share within Oregon

1. Sleep Medicine (Internal Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Sleep Medicine (Internal Medicine) Physician share within Oregon

Medicare quality performance — MIPS

CHLOE MANCHESTER, D.O.'s 2023 MIPS final score plotted against the Sleep Medicine (Internal Medicine) Physician national average

High performer (top quartile)
MIPS Final Score
97.83/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Sleep Medicine (Internal Medicine) Physician) — 97.83/100 vs national avg 83.1

0%100%National avg83%97.8%
MIPS final score (Sleep Medicine (Internal Medicine) Physician) — 97.83/100 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).

CHLOE MANCHESTER, D.O. appears in the CMS NPPES registry as a Sleep Medicine (Internal Medicine) Physician provider holding D.O. credentials at 10201 SE MAIN ST STE 29, PORTLAND, OR, 97216, with a listed phone of (503) 261-4475. NPI 1154716900 was issued on 03/30/2015. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MANCHESTER 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 229 prescription claims written by this provider, covering 106 Medicare beneficiaries and totaling roughly $9K 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 97.83/100 for the 2023 performance year (Quality 80.9759), compared with the national average of 83.1.

Sleep Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 857 enrolled providers across 52 states and an average of 1,310 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

10201 SE MAIN ST STE 29
PORTLAND, OR 97216

Provider Details

NPI 1154716900
Specialty Sleep Medicine (Internal Medicine) Physician
Credentials D.O.
Gender Female
NPI Issued 03/30/2015

CMS Quality Score (MIPS)

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

97.83
Final Score
Avg: 83.1
80.9759
Quality
100
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where CHLOE MANCHESTER, D.O. 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.

PORTLAND ADVENTIST MEDICAL CENTER
PORTLAND, 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).

Medicare Part D Prescribing Data

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

229
Total Claims
$9K
Total Drug Cost
106
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
301
Total Day Supply
6,794
Generic Drug Cost
$4K

Patient Demographics

Average Patient Age
69.9 years
Avg HCC Risk Score
1.15
Gender Split
62% female / 38% male

Top Prescribed Drugs (Medicare Part D)

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

What CHLOE MANCHESTER, D.O. 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
Zolpidem Tartrate
82
Gabapentin
38
Doxepin Hcl
17
Ropinirole Hcl
13

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

Sleep Medicine (Internal Medicine) Physician Overview

How CHLOE MANCHESTER, D.O. fits within the Sleep Medicine (Internal Medicine) Physician landscape nationally.

857
Sleep Medicine (Internal Medicine) Physician Providers in US
52
States with Sleep Medicine (Internal Medicine) Physician
1,310
Avg Claims per Provider

CHLOE MANCHESTER, D.O.'s 229 claims are below the specialty average of 1,310.

Nearby Sleep Medicine (Internal Medicine) Physician Providers in Oregon

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

Compare Sleep Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is CHLOE MANCHESTER, D.O.'s specialty?
CHLOE MANCHESTER, D.O. specializes in Sleep Medicine (Internal Medicine) Physician and practices in PORTLAND, Oregon. Credentials: D.O..
How much does CHLOE MANCHESTER, D.O. prescribe under Medicare Part D?
In 2023, CHLOE MANCHESTER, D.O. wrote 229 Medicare Part D claims totaling $9K in drug costs for 106 beneficiaries.
What is CHLOE MANCHESTER, D.O.'s Medicare quality score?
CHLOE MANCHESTER, D.O. has a CMS MIPS Final Score of 97.83/100 (Quality: 80.9759). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is CHLOE MANCHESTER, D.O. located?
CHLOE MANCHESTER, D.O. is located at 10201 SE MAIN ST STE 29, PORTLAND, OR, 97216. Phone: (503) 261-4475.
What is CHLOE MANCHESTER, D.O.'s NPI number?
CHLOE MANCHESTER, D.O.'s National Provider Identifier (NPI) is 1154716900, issued on 03/30/2015.
How many Sleep Medicine (Internal Medicine) Physician providers are there in the US?
There are 857 Sleep Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Sleep Medicine (Internal Medicine) Physician provider writes 1,310 Medicare Part D claims per year.
What drugs does CHLOE MANCHESTER, D.O. prescribe most often?
Based on 2023 Medicare Part D data, CHLOE MANCHESTER, D.O.'s most frequently prescribed drugs include Zolpidem Tartrate, Gabapentin, Doxepin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHLOE MANCHESTER, D.O. accept Medicare?
CHLOE MANCHESTER, D.O. appears in CMS Medicare data with 229 Part D claims and 106 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHLOE MANCHESTER, D.O.'s credentials?
CHLOE MANCHESTER, D.O.'s NPI is 1154716900 with credentials D.O.. 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