2026 NPPES data Psychiatry Physician NPI 1790854610 MD
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MARY MCCARTHY HOLLOWAY, MD

Psychiatry Physician in GARIBALDI, 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
567
Medicare Part D claims · 19 beneficiaries · Psychiatry Physician avg: 1K

What the federal data shows

MARY MCCARTHY HOLLOWAY, MD filed 567 Medicare Part D claims in 2023 as a Psychiatry Physician in GARIBALDI, Oregon.

567
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.

MARY MCCARTHY HOLLOWAY, MD's Medicare Part D volume vs every U.S. prescriber

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

567 Top 34% higher than 66% 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

Board certification likely (heuristic — not verified)

MARY MCCARTHY HOLLOWAY, MD 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 MARY MCCARTHY HOLLOWAY, MD?

Quality data not reported

NPI registry status

Active

Issued 11/07/2006

NPI 1790854610

Primary specialty

Psychiatry Physician

High-volume

53,104 US NPIs in this specialty

Medicare Part D claims

567 45% vs specialty avg

2023 prescription claims

Specialty avg: 1,038

Specialty distribution in Oregon

How Psychiatry Physician compares to other specialties among Oregon providers

Oregon providers

Psychiatry Physician share within Oregon

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

Specialty board-certification context

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

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

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

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

MARY MCCARTHY HOLLOWAY, MD appears in the CMS NPPES registry as a Psychiatry Physician provider holding MD credentials at PO BOX 827, GARIBALDI, OR, 97118, with a listed phone of (503) 559-7333. NPI 1790854610 was issued on 11/07/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what MCCARTHY HOLLOWAY 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 567 prescription claims written by this provider, covering 19 Medicare beneficiaries and totaling roughly $26K 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.

Psychiatry Physician is a high-volume specialty nationwide, with 53,104 enrolled providers across 56 states and an average of 1,038 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

PO BOX 827
GARIBALDI, OR 97118

Provider Details

NPI 1790854610
Specialty Psychiatry Physician
Credentials MD
Gender Female
NPI Issued 11/07/2006

Hospital and facility affiliations

Facilities where MARY MCCARTHY HOLLOWAY, MD 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.

TILLAMOOK FAMILY COUNSELING CENTER
TILLAMOOK, 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.

567
Total Claims
$26K
Total Drug Cost
19
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
713
Total Day Supply
20,933
Generic Drug Cost
$21K

Patient Demographics

Average Patient Age
66.9 years
Avg HCC Risk Score
1.65

Top Prescribed Drugs (Medicare Part D)

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

What MARY MCCARTHY HOLLOWAY, MD 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
Lorazepam
91
Risperidone
34
Lamotrigine
30
Trazodone Hcl
30
Aripiprazole
24
Amantadine
Amantadine Hcl
23
Bupropion Xl
Bupropion Hcl
22
Sertraline Hcl
20
Citalopram Hbr
Citalopram Hydrobromide
18
Lithium Carbonate Er
Lithium Carbonate
17

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

Psychiatry Physician Overview

How MARY MCCARTHY HOLLOWAY, MD fits within the Psychiatry Physician landscape nationally.

53,104
Psychiatry Physician Providers in US
56
States with Psychiatry Physician
1,038
Avg Claims per Provider

MARY MCCARTHY HOLLOWAY, MD's 567 claims are below the specialty average of 1,038.

Nearby Psychiatry Physician Providers in Oregon

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

Compare Psychiatry Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MARY MCCARTHY HOLLOWAY, MD's specialty?
MARY MCCARTHY HOLLOWAY, MD specializes in Psychiatry Physician and practices in GARIBALDI, Oregon. Credentials: MD.
How much does MARY MCCARTHY HOLLOWAY, MD prescribe under Medicare Part D?
In 2023, MARY MCCARTHY HOLLOWAY, MD wrote 567 Medicare Part D claims totaling $26K in drug costs for 19 beneficiaries.
Where is MARY MCCARTHY HOLLOWAY, MD located?
MARY MCCARTHY HOLLOWAY, MD is located at PO BOX 827, GARIBALDI, OR, 97118. Phone: (503) 559-7333.
What is MARY MCCARTHY HOLLOWAY, MD's NPI number?
MARY MCCARTHY HOLLOWAY, MD's National Provider Identifier (NPI) is 1790854610, issued on 11/07/2006.
How many Psychiatry Physician providers are there in the US?
There are 53,104 Psychiatry Physician providers across 56 states in the US. The average Psychiatry Physician provider writes 1,038 Medicare Part D claims per year.
What drugs does MARY MCCARTHY HOLLOWAY, MD prescribe most often?
Based on 2023 Medicare Part D data, MARY MCCARTHY HOLLOWAY, MD's most frequently prescribed drugs include Lorazepam, Risperidone, Lamotrigine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does MARY MCCARTHY HOLLOWAY, MD accept Medicare?
MARY MCCARTHY HOLLOWAY, MD appears in CMS Medicare data with 567 Part D claims and 19 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MARY MCCARTHY HOLLOWAY, MD's credentials?
MARY MCCARTHY HOLLOWAY, MD's NPI is 1790854610 with credentials MD. 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