2026 NPPES data Emergency Medicine Physician NPI 1508806498 MD
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DAVID CLAASSEN, MD

Emergency Medicine Physician in DOTHAN, Alabama. 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
574
Medicare Part D claims · 385 beneficiaries · Emergency Medicine Physician avg: 352
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: DAVID CLAASSEN, MD is a Emergency Medicine Physician ([object Object]) practicing in DOTHAN, Alabama with a Medicare Part D prescribing footprint of 574 claims across 385 beneficiaries — 5% brand-name prescribing .

What stands out: DAVID CLAASSEN, MD filed 574 Medicare Part D claims in 2023 across DOTHAN, Alabama. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

DAVID CLAASSEN, 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 CLAASSEN, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 06/08/2006

NPI 1508806498

Primary specialty

Emergency Medicine Physician

High-volume

64,398 US NPIs in this specialty

Medicare Part D claims

574 63% vs specialty avg

2023 prescription claims

Specialty avg: 352

Specialty distribution in Alabama

How Emergency Medicine Physician compares to other specialties among Alabama providers

Alabama providers

Emergency Medicine Physician share within Alabama

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

Specialty board-certification context

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

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

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

0%100%78%
Est. board-certified rate (Emergency 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 CLAASSEN, MD is a Emergency Medicine Physician provider practicing in DOTHAN, Alabama, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1508806498. 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 CLAASSEN, MD appears in the CMS NPPES registry as a Emergency Medicine Physician provider holding MD credentials at 4370 W MAIN ST, DOTHAN, AL, 36305, with a listed phone of (334) 793-5000. NPI 1508806498 was issued on 06/08/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CLAASSEN 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 574 prescription claims written by this provider, covering 385 Medicare beneficiaries and totaling roughly $11K in drug spend, split 5% brand-name and 95% generic by claim count, with an opioid prescribing rate of 24.7%. 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.

Emergency Medicine Physician is a high-volume specialty nationwide, with 64,398 enrolled providers across 56 states and an average of 352 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

4370 W MAIN ST
DOTHAN, AL 36305

Provider Details

NPI 1508806498
Specialty Emergency Medicine Physician
Credentials MD
Gender Male
NPI Issued 06/08/2006

Hospital and facility affiliations

Facilities where DAVID CLAASSEN, 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.

FLOWERS HB MEDICAL SERVICES LLC
DOTHAN, AL

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 · Generic-heavy

DAVID CLAASSEN, MD — brand share 5.0%
Specialty average (est.)

5% brand-name claims vs 95% generic, on 574 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.

574
Total Claims
$11K
Total Drug Cost
385
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
659
Total Day Supply
8,002
Brand vs Generic
5% brand / 95% generic
Brand Drug Cost
$5K
Generic Drug Cost
$7K
Opioid Claims
142 (24.7% rate)
Antibiotic Claims
139

Patient Demographics

Average Patient Age
68.5 years
Avg HCC Risk Score
1.55
Gender Split
61% female / 39% male
Age Distribution
<65: 117, 65-74: 134, 75-84: 102, 85+: 32

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Hydrocodone-Acetaminophen
Hydrocodone/Acetaminophen
87
Cefdinir
55
Ondansetron Odt
Ondansetron
53
Oxycodone-Acetaminophen
Oxycodone Hcl/Acetaminophen
31
Methylprednisolone
19
Methocarbamol
18
Levofloxacin
14
Tamsulosin Hcl
13
Amoxicillin-Clavulanate Potass
Amoxicillin/Potassium Clav
12
Etodolac
12

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

Emergency Medicine Physician Overview

How DAVID CLAASSEN, MD fits within the Emergency Medicine Physician landscape nationally.

64,398
Emergency Medicine Physician Providers in US
56
States with Emergency Medicine Physician
352
Avg Claims per Provider

DAVID CLAASSEN, MD's 574 claims are above the specialty average of 352.

Nearby Emergency Medicine Physician Providers in Alabama

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

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

Frequently Asked Questions

What is DAVID CLAASSEN, MD's specialty?
DAVID CLAASSEN, MD specializes in Emergency Medicine Physician and practices in DOTHAN, Alabama. Credentials: MD.
How much does DAVID CLAASSEN, MD prescribe under Medicare Part D?
In 2023, DAVID CLAASSEN, MD wrote 574 Medicare Part D claims totaling $11K in drug costs for 385 beneficiaries.
Where is DAVID CLAASSEN, MD located?
DAVID CLAASSEN, MD is located at 4370 W MAIN ST, DOTHAN, AL, 36305. Phone: (334) 793-5000.
What is DAVID CLAASSEN, MD's NPI number?
DAVID CLAASSEN, MD's National Provider Identifier (NPI) is 1508806498, issued on 06/08/2006.
Does DAVID CLAASSEN, MD prescribe more brand-name or generic drugs?
DAVID CLAASSEN, MD's prescribing is 5% brand-name and 95% generic drugs by claim count, with $5K in brand drug costs.
Does DAVID CLAASSEN, MD prescribe opioids?
Yes, DAVID CLAASSEN, MD had 142 opioid claims in 2023 with an opioid prescribing rate of 24.7%.
How many Emergency Medicine Physician providers are there in the US?
There are 64,398 Emergency Medicine Physician providers across 56 states in the US. The average Emergency Medicine Physician provider writes 352 Medicare Part D claims per year.
What drugs does DAVID CLAASSEN, MD prescribe most often?
Based on 2023 Medicare Part D data, DAVID CLAASSEN, MD's most frequently prescribed drugs include Hydrocodone-Acetaminophen, Cefdinir, Ondansetron Odt. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DAVID CLAASSEN, MD accept Medicare?
DAVID CLAASSEN, MD appears in CMS Medicare data with 574 Part D claims and 385 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DAVID CLAASSEN, MD's credentials?
DAVID CLAASSEN, MD's NPI is 1508806498 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