2026 NPPES data Internal Medicine Physician NPI 1811154602 M.D.
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CHRISTINE MULLOWNEY, M.D.

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
3K
Medicare Part D claims · 207 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
84%
generic claims · 16% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

CHRISTINE MULLOWNEY, M.D. filed 2,782 Medicare Part D claims in 2023 as a Internal Medicine Physician in PORTLAND, Oregon, prescribing 84% generic.

3K
Part D claims, 2023
84%
generic prescribing
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.

CHRISTINE MULLOWNEY, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

2,782 Top 12% higher than 88% 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%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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

Board certification likely (heuristic — not verified)

CHRISTINE MULLOWNEY, 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).

What does the federal data show about CHRISTINE MULLOWNEY, M.D.?

Quality data not reported

NPI registry status

Active

Issued 05/20/2008

NPI 1811154602

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

2,782 2% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

Specialty distribution in Oregon

How Internal Medicine Physician compares to other specialties among Oregon providers

Oregon providers

Internal Medicine Physician share within Oregon

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

Specialty board-certification context

Estimated specialty board-certified rate — Internal Medicine Physician (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Internal Medicine Physician ABMS/AOA estimate

Est. board-certified rate (Internal Medicine Physician) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Internal Medicine 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).

CHRISTINE MULLOWNEY, M.D. appears in the CMS NPPES registry as a Internal Medicine Physician provider holding M.D. credentials at 3181 SW SAM JACKSON PARK RD # L475, PORTLAND, OR, 97239, with a listed phone of (503) 494-8562. NPI 1811154602 was issued on 05/20/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MULLOWNEY 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 2,782 prescription claims written by this provider, covering 207 Medicare beneficiaries and totaling roughly $401K in drug spend, split 16% brand-name and 84% generic by claim count, with an opioid prescribing rate of 2.8%. 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.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 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 # L475
PORTLAND, OR 97239

Provider Details

NPI 1811154602
Specialty Internal Medicine Physician
Credentials M.D.
Gender Female
NPI Issued 05/20/2008

Hospital and facility affiliations

Facilities where CHRISTINE MULLOWNEY, 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.

UNIVERSITY PROFESSIONAL SERVICES
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).

Brand vs generic prescribing mix · Typical

CHRISTINE MULLOWNEY, M.D. — brand share 16.0%
Specialty average (est.)

16% brand-name claims vs 84% generic, on 2,782 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.

2,782
Total Claims
$401K
Total Drug Cost
207
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
5,801
Total Day Supply
166,809
Brand vs Generic
16% brand / 84% generic
Brand Drug Cost
$332K
Generic Drug Cost
$66K
Opioid Claims
78 (2.8% rate)
Antibiotic Claims
31

Patient Demographics

Average Patient Age
74.1 years
Avg HCC Risk Score
1.40
Gender Split
66% female / 34% male
Age Distribution
<65: 22, 65-74: 87, 75-84: 75, 85+: 23

Top Prescribed Drugs (Medicare Part D)

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

What CHRISTINE MULLOWNEY, M.D. 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
Atorvastatin Calcium
255
Levothyroxine Sodium
122
Amlodipine Besylate
115
Lisinopril
78
Alendronate Sodium
67
Metformin Hcl Er
Metformin Hcl
67
Metoprolol Succinate
63
Omeprazole
56
Oxycodone Hcl
55
Losartan Potassium
54

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

Internal Medicine Physician Overview

How CHRISTINE MULLOWNEY, M.D. fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

CHRISTINE MULLOWNEY, M.D.'s 2,782 claims are above the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in Oregon

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

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

Frequently Asked Questions

What is CHRISTINE MULLOWNEY, M.D.'s specialty?
CHRISTINE MULLOWNEY, M.D. specializes in Internal Medicine Physician and practices in PORTLAND, Oregon. Credentials: M.D..
How much does CHRISTINE MULLOWNEY, M.D. prescribe under Medicare Part D?
In 2023, CHRISTINE MULLOWNEY, M.D. wrote 2,782 Medicare Part D claims totaling $401K in drug costs for 207 beneficiaries.
Where is CHRISTINE MULLOWNEY, M.D. located?
CHRISTINE MULLOWNEY, M.D. is located at 3181 SW SAM JACKSON PARK RD # L475, PORTLAND, OR, 97239. Phone: (503) 494-8562.
What is CHRISTINE MULLOWNEY, M.D.'s NPI number?
CHRISTINE MULLOWNEY, M.D.'s National Provider Identifier (NPI) is 1811154602, issued on 05/20/2008.
Does CHRISTINE MULLOWNEY, M.D. prescribe more brand-name or generic drugs?
CHRISTINE MULLOWNEY, M.D.'s prescribing is 16% brand-name and 84% generic drugs by claim count, with $332K in brand drug costs.
Does CHRISTINE MULLOWNEY, M.D. prescribe opioids?
Yes, CHRISTINE MULLOWNEY, M.D. had 78 opioid claims in 2023 with an opioid prescribing rate of 2.8%.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
What drugs does CHRISTINE MULLOWNEY, M.D. prescribe most often?
Based on 2023 Medicare Part D data, CHRISTINE MULLOWNEY, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Amlodipine Besylate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHRISTINE MULLOWNEY, M.D. accept Medicare?
CHRISTINE MULLOWNEY, M.D. appears in CMS Medicare data with 2,782 Part D claims and 207 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHRISTINE MULLOWNEY, M.D.'s credentials?
CHRISTINE MULLOWNEY, M.D.'s NPI is 1811154602 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