2026 NPPES data Addiction Medicine (Family Medicine) Physician NPI 1679156384 MD
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CARLOS LLANES, MD

Addiction Medicine (Family Medicine) Physician in MIDDLETOWN, Connecticut. 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
907
Medicare Part D claims · 110 beneficiaries · Addiction Medicine (Family Medicine) Physician avg: 1K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs
What the federal data reveals: CARLOS LLANES, MD is a Addiction Medicine (Family Medicine) Physician ([object Object]) practicing in MIDDLETOWN, Connecticut with a Medicare Part D prescribing footprint of 907 claims across 110 beneficiaries — 14% brand-name prescribing .

What stands out: CARLOS LLANES, MD filed 907 Medicare Part D claims in 2023 across MIDDLETOWN, Connecticut. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board-eligible specialty (heuristic — not verified)

CARLOS LLANES, MD 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).

CARLOS LLANES, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 04/30/2021

NPI 1679156384

Primary specialty

Addiction Medicine (Family Medicine) Physician

Niche

763 US NPIs in this specialty

Medicare Part D claims

907 20% vs specialty avg

2023 prescription claims

Specialty avg: 1,134

Specialty distribution in Connecticut

How Addiction Medicine (Family Medicine) Physician compares to other specialties among Connecticut providers

Connecticut providers

Addiction Medicine (Family Medicine) Physician share within Connecticut

1. Addiction Medicine (Family Medicine) Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Addiction Medicine (Family Medicine) Physician share within Connecticut

Specialty board-certification context

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

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

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

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

CARLOS LLANES, MD is a Addiction Medicine (Family Medicine) Physician provider practicing in MIDDLETOWN, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1679156384. 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.

CARLOS LLANES, MD appears in the CMS NPPES registry as a Addiction Medicine (Family Medicine) Physician provider holding MD credentials at 1250 SILVER ST, MIDDLETOWN, CT, 06457, with a listed phone of (860) 346-0300. NPI 1679156384 was issued on 04/30/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what LLANES 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 907 prescription claims written by this provider, covering 110 Medicare beneficiaries and totaling roughly $114K in drug spend, split 14% brand-name and 86% 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.

Addiction Medicine (Family Medicine) Physician is a narrow specialty nationwide, with 763 enrolled providers across 48 states and an average of 1,134 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

1250 SILVER ST
MIDDLETOWN, CT 06457

Provider Details

NPI 1679156384
Specialty Addiction Medicine (Family Medicine) Physician
Credentials MD
Gender Male
NPI Issued 04/30/2021

Brand vs generic prescribing mix · Typical

CARLOS LLANES, MD — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 907 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.

907
Total Claims
$114K
Total Drug Cost
110
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,532
Total Day Supply
44,120
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$94K
Generic Drug Cost
$19K
Antibiotic Claims
14

Patient Demographics

Average Patient Age
66.9 years
Avg HCC Risk Score
2.28
Gender Split
53% female / 47% male
Age Distribution
<65: 43, 65-74: 40, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Amlodipine Besylate
72
Atorvastatin Calcium
66
Metformin Hcl
43
Duloxetine Hcl
32
Lisinopril
32
Eliquis
Apixaban
31
Losartan Potassium
29
Hydralazine Hcl
22
Rosuvastatin Calcium
22
Tizanidine Hcl
20

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

Addiction Medicine (Family Medicine) Physician Overview

How CARLOS LLANES, MD fits within the Addiction Medicine (Family Medicine) Physician landscape nationally.

763
Addiction Medicine (Family Medicine) Physician Providers in US
48
States with Addiction Medicine (Family Medicine) Physician
1,134
Avg Claims per Provider

CARLOS LLANES, MD's 907 claims are below the specialty average of 1,134.

Nearby Addiction Medicine (Family Medicine) Physician Providers in Connecticut

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

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

Frequently Asked Questions

What is CARLOS LLANES, MD's specialty?
CARLOS LLANES, MD specializes in Addiction Medicine (Family Medicine) Physician and practices in MIDDLETOWN, Connecticut. Credentials: MD.
How much does CARLOS LLANES, MD prescribe under Medicare Part D?
In 2023, CARLOS LLANES, MD wrote 907 Medicare Part D claims totaling $114K in drug costs for 110 beneficiaries.
Where is CARLOS LLANES, MD located?
CARLOS LLANES, MD is located at 1250 SILVER ST, MIDDLETOWN, CT, 06457. Phone: (860) 346-0300.
What is CARLOS LLANES, MD's NPI number?
CARLOS LLANES, MD's National Provider Identifier (NPI) is 1679156384, issued on 04/30/2021.
Does CARLOS LLANES, MD prescribe more brand-name or generic drugs?
CARLOS LLANES, MD's prescribing is 14% brand-name and 86% generic drugs by claim count, with $94K in brand drug costs.
How many Addiction Medicine (Family Medicine) Physician providers are there in the US?
There are 763 Addiction Medicine (Family Medicine) Physician providers across 48 states in the US. The average Addiction Medicine (Family Medicine) Physician provider writes 1,134 Medicare Part D claims per year.
What drugs does CARLOS LLANES, MD prescribe most often?
Based on 2023 Medicare Part D data, CARLOS LLANES, MD's most frequently prescribed drugs include Amlodipine Besylate, Atorvastatin Calcium, Metformin Hcl. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CARLOS LLANES, MD accept Medicare?
CARLOS LLANES, MD appears in CMS Medicare data with 907 Part D claims and 110 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CARLOS LLANES, MD's credentials?
CARLOS LLANES, MD's NPI is 1679156384 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