2026 NPPES data Family Medicine Physician NPI 1114183555 D.O.
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DAVID DAHL, D.O.

Family Medicine Physician in WASHINGTON, Indiana. 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
28
Medicare Part D claims · 19 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
54%
generic claims · 46% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

DAVID DAHL, D.O. filed 28 Medicare Part D claims in 2023 as a Family Medicine Physician in WASHINGTON, Indiana, prescribing 54% generic.

28
Part D claims, 2023
54%
generic prescribing

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.

DAVID DAHL, D.O.'s Medicare Part D volume vs every U.S. prescriber

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

28 0th percentile higher than 0% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). This entry sits in this band. 200–400: 182,923 prescribers (13%). Above this entry. 400–600: 90,619 prescribers (7%). Above this entry. 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-eligible specialty (heuristic — not verified)

DAVID DAHL, D.O. practices in an ABMS-board-eligible specialty but we don't have enough CMS-participation signals to confirm active board-certified status. Consult CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about DAVID DAHL, D.O.?

Quality data not reported

NPI registry status

Active

Issued 08/05/2008

NPI 1114183555

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

28 99% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Indiana

How Family Medicine Physician compares to other specialties among Indiana providers

Indiana providers

Family Medicine Physician share within Indiana

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

Specialty board-certification context

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

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

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

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

DAVID DAHL, D.O. appears in the CMS NPPES registry as a Family Medicine Physician provider holding D.O. credentials at 600 S STATE ROAD 57, WASHINGTON, IN, 47501, with a listed phone of (812) 257-1052. NPI 1114183555 was issued on 08/05/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what DAHL 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 28 prescription claims written by this provider, covering 19 Medicare beneficiaries and totaling roughly $11K in drug spend, split 46% brand-name and 54% 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.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

600 S STATE ROAD 57
WASHINGTON, IN 47501

Provider Details

NPI 1114183555
Specialty Family Medicine Physician
Credentials D.O.
Gender Male
NPI Issued 08/05/2008

Brand vs generic prescribing mix · Above average

DAVID DAHL, D.O. — brand share 46.0%
Specialty average (est.)

46% brand-name claims vs 54% generic, on 28 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.

28
Total Claims
$11K
Total Drug Cost
19
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
47
Total Day Supply
1,316
Brand vs Generic
46% brand / 54% generic
Brand Drug Cost
$10K
Generic Drug Cost
$921

Patient Demographics

Average Patient Age
64.8 years
Avg HCC Risk Score
0.70

Family Medicine Physician Overview

How DAVID DAHL, D.O. fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

DAVID DAHL, D.O.'s 28 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Indiana

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

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

Frequently Asked Questions

What is DAVID DAHL, D.O.'s specialty?
DAVID DAHL, D.O. specializes in Family Medicine Physician and practices in WASHINGTON, Indiana. Credentials: D.O..
How much does DAVID DAHL, D.O. prescribe under Medicare Part D?
In 2023, DAVID DAHL, D.O. wrote 28 Medicare Part D claims totaling $11K in drug costs for 19 beneficiaries.
Where is DAVID DAHL, D.O. located?
DAVID DAHL, D.O. is located at 600 S STATE ROAD 57, WASHINGTON, IN, 47501. Phone: (812) 257-1052.
What is DAVID DAHL, D.O.'s NPI number?
DAVID DAHL, D.O.'s National Provider Identifier (NPI) is 1114183555, issued on 08/05/2008.
Does DAVID DAHL, D.O. prescribe more brand-name or generic drugs?
DAVID DAHL, D.O.'s prescribing is 46% brand-name and 54% generic drugs by claim count, with $10K in brand drug costs.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
Does DAVID DAHL, D.O. accept Medicare?
DAVID DAHL, D.O. appears in CMS Medicare data with 28 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 DAVID DAHL, D.O.'s credentials?
DAVID DAHL, D.O.'s NPI is 1114183555 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.
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