2026 NPPES data Family Medicine Physician NPI 1447486790 M.D.
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DOUGLAS HENDREX, M.D.

Family Medicine Physician in FORT SMITH, Arkansas. 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
9K
Medicare Part D claims · 237 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
74%
generic claims · 26% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

DOUGLAS HENDREX, M.D. filed 8,776 Medicare Part D claims in 2023 as a Family Medicine Physician in FORT SMITH, Arkansas, prescribing 74% generic.

9K
Part D claims, 2023
74%
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.

DOUGLAS HENDREX, M.D.'s Medicare Part D volume vs every U.S. prescriber

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

8,776 Top 2% higher than 98% 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%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. 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)

DOUGLAS HENDREX, 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 DOUGLAS HENDREX, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/01/2009

NPI 1447486790

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

8,776 157% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

Specialty distribution in Arkansas

How Family Medicine Physician compares to other specialties among Arkansas providers

Arkansas providers

Family Medicine Physician share within Arkansas

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

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).

DOUGLAS HENDREX, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at 612 S 12TH ST, FORT SMITH, AR, 72901, with a listed phone of (479) 785-2431. NPI 1447486790 was issued on 06/01/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what HENDREX 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 8,776 prescription claims written by this provider, covering 237 Medicare beneficiaries and totaling roughly $1.2 million in drug spend, split 26% brand-name and 74% generic by claim count, with an opioid prescribing rate of 1.0%. 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

612 S 12TH ST
FORT SMITH, AR 72901

Provider Details

NPI 1447486790
Specialty Family Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 06/01/2009

Brand vs generic prescribing mix · Above average

DOUGLAS HENDREX, M.D. — brand share 26.0%
Specialty average (est.)

26% brand-name claims vs 74% generic, on 8,776 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.

8,776
Total Claims
$1.2M
Total Drug Cost
237
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
9,697
Total Day Supply
277,540
Brand vs Generic
26% brand / 74% generic
Brand Drug Cost
$839K
Generic Drug Cost
$296K
Opioid Claims
85 (1.0% rate)
Antibiotic Claims
136

Patient Demographics

Average Patient Age
71.8 years
Avg HCC Risk Score
1.29
Gender Split
59% female / 41% male
Age Distribution
<65: 41, 65-74: 99, 75-84: 75, 85+: 22

Top Prescribed Drugs (Medicare Part D)

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

What DOUGLAS HENDREX, M.D. 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
Losartan Potassium
445
Lisinopril
381
Atorvastatin Calcium
335
Synthroid
Levothyroxine Sodium
322
Gabapentin
288
Ozempic
Semaglutide
272
Hydrochlorothiazide
269
Albuterol Sulfate Hfa
Albuterol Sulfate
259
Rosuvastatin Calcium
240
Amlodipine Besylate
227

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

Family Medicine Physician Overview

How DOUGLAS HENDREX, M.D. 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

DOUGLAS HENDREX, M.D.'s 8,776 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Arkansas

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

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

Frequently Asked Questions

What is DOUGLAS HENDREX, M.D.'s specialty?
DOUGLAS HENDREX, M.D. specializes in Family Medicine Physician and practices in FORT SMITH, Arkansas. Credentials: M.D..
How much does DOUGLAS HENDREX, M.D. prescribe under Medicare Part D?
In 2023, DOUGLAS HENDREX, M.D. wrote 8,776 Medicare Part D claims totaling $1.2M in drug costs for 237 beneficiaries.
Where is DOUGLAS HENDREX, M.D. located?
DOUGLAS HENDREX, M.D. is located at 612 S 12TH ST, FORT SMITH, AR, 72901. Phone: (479) 785-2431.
What is DOUGLAS HENDREX, M.D.'s NPI number?
DOUGLAS HENDREX, M.D.'s National Provider Identifier (NPI) is 1447486790, issued on 06/01/2009.
Does DOUGLAS HENDREX, M.D. prescribe more brand-name or generic drugs?
DOUGLAS HENDREX, M.D.'s prescribing is 26% brand-name and 74% generic drugs by claim count, with $839K in brand drug costs.
Does DOUGLAS HENDREX, M.D. prescribe opioids?
Yes, DOUGLAS HENDREX, M.D. had 85 opioid claims in 2023 with an opioid prescribing rate of 1.0%.
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.
What drugs does DOUGLAS HENDREX, M.D. prescribe most often?
Based on 2023 Medicare Part D data, DOUGLAS HENDREX, M.D.'s most frequently prescribed drugs include Losartan Potassium, Lisinopril, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DOUGLAS HENDREX, M.D. accept Medicare?
DOUGLAS HENDREX, M.D. appears in CMS Medicare data with 8,776 Part D claims and 237 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DOUGLAS HENDREX, M.D.'s credentials?
DOUGLAS HENDREX, M.D.'s NPI is 1447486790 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