2026 NPPES data Child & Adolescent Psychiatry Physician NPI 1881701670 MD
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DAVID SCHENK, MD

Child & Adolescent Psychiatry Physician in PORTLAND, Maine. 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
457
Medicare Part D claims · Child & Adolescent Psychiatry Physician avg: 600
Generic prescribing
78%
generic claims · 22% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$35.56
1 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: DAVID SCHENK, MD is a Child & Adolescent Psychiatry Physician ([object Object]) practicing in PORTLAND, Maine with a Medicare Part D prescribing footprint of 457 claims — 22% brand-name prescribing . Industry payments of $35.56 across 1 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: DAVID SCHENK, MD filed 457 Medicare Part D claims in 2023 across PORTLAND, Maine. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

DAVID SCHENK, 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).

DAVID SCHENK, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 08/25/2006

NPI 1881701670

Primary specialty

Child & Adolescent Psychiatry Physician

Mid-sized

6,160 US NPIs in this specialty

Medicare Part D claims

457 24% vs specialty avg

2023 prescription claims

Specialty avg: 600

Specialty distribution in Maine

How Child & Adolescent Psychiatry Physician compares to other specialties among Maine providers

Maine providers

Child & Adolescent Psychiatry Physician share within Maine

1. Child & Adolescent Psychiatry Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Child & Adolescent Psychiatry Physician share within Maine

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Child & Adolescent 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).

DAVID SCHENK, MD is a Child & Adolescent Psychiatry Physician provider practicing in PORTLAND, Maine, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1881701670. 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.

DAVID SCHENK, MD appears in the CMS NPPES registry as a Child & Adolescent Psychiatry Physician provider holding MD credentials at 165 LANCASTER ST, PORTLAND, ME, 04101, with a listed phone of (207) 661-3500. NPI 1881701670 was issued on 08/25/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what SCHENK 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 457 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $44K in drug spend, split 22% brand-name and 78% generic by claim count. 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.

Child & Adolescent Psychiatry Physician is a mid-sized specialty nationwide, with 6,160 enrolled providers across 54 states and an average of 600 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

165 LANCASTER ST
PORTLAND, ME 04101

Provider Details

NPI 1881701670
Specialty Child & Adolescent Psychiatry Physician
Credentials MD
Gender Male
NPI Issued 08/25/2006

Hospital and facility affiliations

Facilities where DAVID SCHENK, 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.

COMMUNITY CLINICAL SERVICES INC
LEWISTON, ME

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 DAVID SCHENK, MD. Source: openpaymentsdata.cms.gov.

Total received

$36

Largest payer

Janssen Pharmaceuticals, 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

DAVID SCHENK, MD — brand share 22.0%
Specialty average (est.)

22% brand-name claims vs 78% generic, on 457 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.

457
Total Claims
$44K
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
461
Total Day Supply
3,359
Brand vs Generic
22% brand / 78% generic
Brand Drug Cost
$42K
Generic Drug Cost
$2K

Patient Demographics

Average Patient Age
32.0 years
Avg HCC Risk Score
0.51

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Prazosin Hcl
102
Fanapt
Iloperidone
99
Bupropion Hcl Sr
Bupropion Hcl
51
Lamotrigine
51
Mirtazapine
51
Venlafaxine Hcl Er
Venlafaxine Hcl
51
Buspirone Hcl
50

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

Child & Adolescent Psychiatry Physician Overview

How DAVID SCHENK, MD fits within the Child & Adolescent Psychiatry Physician landscape nationally.

6,160
Child & Adolescent Psychiatry Physician Providers in US
54
States with Child & Adolescent Psychiatry Physician
600
Avg Claims per Provider

DAVID SCHENK, MD's 457 claims are below the specialty average of 600.

Nearby Child & Adolescent Psychiatry Physician Providers in Maine

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

Compare Child & Adolescent Psychiatry Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is DAVID SCHENK, MD's specialty?
DAVID SCHENK, MD specializes in Child & Adolescent Psychiatry Physician and practices in PORTLAND, Maine. Credentials: MD.
How much does DAVID SCHENK, MD prescribe under Medicare Part D?
In 2023, DAVID SCHENK, MD wrote 457 Medicare Part D claims totaling $44K in drug costs for N/A beneficiaries.
Where is DAVID SCHENK, MD located?
DAVID SCHENK, MD is located at 165 LANCASTER ST, PORTLAND, ME, 04101. Phone: (207) 661-3500.
What is DAVID SCHENK, MD's NPI number?
DAVID SCHENK, MD's National Provider Identifier (NPI) is 1881701670, issued on 08/25/2006.
Does DAVID SCHENK, MD prescribe more brand-name or generic drugs?
DAVID SCHENK, MD's prescribing is 22% brand-name and 78% generic drugs by claim count, with $42K in brand drug costs.
How many Child & Adolescent Psychiatry Physician providers are there in the US?
There are 6,160 Child & Adolescent Psychiatry Physician providers across 54 states in the US. The average Child & Adolescent Psychiatry Physician provider writes 600 Medicare Part D claims per year.
What drugs does DAVID SCHENK, MD prescribe most often?
Based on 2023 Medicare Part D data, DAVID SCHENK, MD's most frequently prescribed drugs include Prazosin Hcl, Fanapt, Bupropion Hcl Sr. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DAVID SCHENK, MD accept Medicare?
DAVID SCHENK, MD appears in CMS Medicare data with 457 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 DAVID SCHENK, MD's credentials?
DAVID SCHENK, MD's NPI is 1881701670 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