2026 NPPES data Anesthesiology Physician NPI 1043232333 M.D.
Verify on CMS →

DEAN HARLESS, M.D.

Anesthesiology Physician in MEMPHIS, Tennessee. 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
145
Medicare Part D claims · 27 beneficiaries · Anesthesiology Physician avg: 860
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

DEAN HARLESS, M.D. filed 145 Medicare Part D claims in 2023 as a Anesthesiology Physician in MEMPHIS, Tennessee, prescribing 92% generic.

145
Part D claims, 2023
92%
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.

DEAN HARLESS, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

145 35th percentile higher than 35% 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)

DEAN HARLESS, M.D. 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 DEAN HARLESS, M.D.?

Quality data not reported

NPI registry status

Active

Issued 07/24/2006

NPI 1043232333

Primary specialty

Anesthesiology Physician

High-volume

56,398 US NPIs in this specialty

Medicare Part D claims

145 83% vs specialty avg

2023 prescription claims

Specialty avg: 860

Specialty distribution in Tennessee

How Anesthesiology Physician compares to other specialties among Tennessee providers

Tennessee providers

Anesthesiology Physician share within Tennessee

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

Specialty board-certification context

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

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

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

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

DEAN HARLESS, M.D. appears in the CMS NPPES registry as a Anesthesiology Physician provider holding M.D. credentials at 3362 S 3RD ST, MEMPHIS, TN, 38109, with a listed phone of (901) 701-2510. NPI 1043232333 was issued on 07/24/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HARLESS 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 145 prescription claims written by this provider, covering 27 Medicare beneficiaries and totaling roughly $21K in drug spend, split 8% brand-name and 92% 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.

Anesthesiology Physician is a high-volume specialty nationwide, with 56,398 enrolled providers across 56 states and an average of 860 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

3362 S 3RD ST
MEMPHIS, TN 38109

Provider Details

NPI 1043232333
Specialty Anesthesiology Physician
Credentials M.D.
Gender Male
NPI Issued 07/24/2006

Brand vs generic prescribing mix · Generic-heavy

DEAN HARLESS, M.D. — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 145 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.

145
Total Claims
$21K
Total Drug Cost
27
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
172
Total Day Supply
4,182
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$10K
Generic Drug Cost
$11K

Patient Demographics

Average Patient Age
60.1 years
Avg HCC Risk Score
1.18

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Buprenorphine-Naloxone
Buprenorphine Hcl/Naloxone Hcl
79

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

Anesthesiology Physician Overview

How DEAN HARLESS, M.D. fits within the Anesthesiology Physician landscape nationally.

56,398
Anesthesiology Physician Providers in US
56
States with Anesthesiology Physician
860
Avg Claims per Provider

DEAN HARLESS, M.D.'s 145 claims are below the specialty average of 860.

Nearby Anesthesiology Physician Providers in Tennessee

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

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

Frequently Asked Questions

What is DEAN HARLESS, M.D.'s specialty?
DEAN HARLESS, M.D. specializes in Anesthesiology Physician and practices in MEMPHIS, Tennessee. Credentials: M.D..
How much does DEAN HARLESS, M.D. prescribe under Medicare Part D?
In 2023, DEAN HARLESS, M.D. wrote 145 Medicare Part D claims totaling $21K in drug costs for 27 beneficiaries.
Where is DEAN HARLESS, M.D. located?
DEAN HARLESS, M.D. is located at 3362 S 3RD ST, MEMPHIS, TN, 38109. Phone: (901) 701-2510.
What is DEAN HARLESS, M.D.'s NPI number?
DEAN HARLESS, M.D.'s National Provider Identifier (NPI) is 1043232333, issued on 07/24/2006.
Does DEAN HARLESS, M.D. prescribe more brand-name or generic drugs?
DEAN HARLESS, M.D.'s prescribing is 8% brand-name and 92% generic drugs by claim count, with $10K in brand drug costs.
How many Anesthesiology Physician providers are there in the US?
There are 56,398 Anesthesiology Physician providers across 56 states in the US. The average Anesthesiology Physician provider writes 860 Medicare Part D claims per year.
What drugs does DEAN HARLESS, M.D. prescribe most often?
Based on 2023 Medicare Part D data, DEAN HARLESS, M.D.'s most frequently prescribed drugs include Buprenorphine-Naloxone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DEAN HARLESS, M.D. accept Medicare?
DEAN HARLESS, M.D. appears in CMS Medicare data with 145 Part D claims and 27 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DEAN HARLESS, M.D.'s credentials?
DEAN HARLESS, M.D.'s NPI is 1043232333 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