2026 NPPES data Addiction Medicine (Family Medicine) Physician NPI 1972619864 MD
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DANIEL REGAN, MD

Addiction Medicine (Family Medicine) Physician in JOHNSTON, Rhode Island. 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
2K
Medicare Part D claims · 843 beneficiaries · Addiction Medicine (Family Medicine) Physician avg: 1K
Generic prescribing
94%
generic claims · 6% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$97.8
5 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: DANIEL REGAN, MD is a Addiction Medicine (Family Medicine) Physician ([object Object]) practicing in JOHNSTON, Rhode Island with a Medicare Part D prescribing footprint of 2K claims across 843 beneficiaries — 6% brand-name prescribing . Industry payments of $97.8 across 5 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: DANIEL REGAN, MD filed 1,906 Medicare Part D claims in 2023 across JOHNSTON, Rhode Island. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

DANIEL REGAN, 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).

DANIEL REGAN, MD at a glance

Quality data not reported

NPI registry status

Active

Issued 08/22/2006

NPI 1972619864

Primary specialty

Addiction Medicine (Family Medicine) Physician

Niche

763 US NPIs in this specialty

Medicare Part D claims

1,906 68% vs specialty avg

2023 prescription claims

Specialty avg: 1,134

Specialty distribution in Rhode Island

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

Rhode Island providers

Addiction Medicine (Family Medicine) Physician share within Rhode Island

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

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).

DANIEL REGAN, MD is a Addiction Medicine (Family Medicine) Physician provider practicing in JOHNSTON, Rhode Island, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1972619864. 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.

DANIEL REGAN, MD appears in the CMS NPPES registry as a Addiction Medicine (Family Medicine) Physician provider holding MD credentials at 1526 ATWOOD AVE, JOHNSTON, RI, 02919, with a listed phone of (401) 273-9400. NPI 1972619864 was issued on 08/22/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what REGAN 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 1,906 prescription claims written by this provider, covering 843 Medicare beneficiaries and totaling roughly $166K in drug spend, split 6% brand-name and 94% generic by claim count, with an opioid prescribing rate of 3.0%. 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.

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

1526 ATWOOD AVE
JOHNSTON, RI 02919

Provider Details

NPI 1972619864
Specialty Addiction Medicine (Family Medicine) Physician
Credentials MD
Gender Male
NPI Issued 08/22/2006

Hospital and facility affiliations

Facilities where DANIEL REGAN, 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.

ATMED TREATMENT CENTER, INC.
JOHNSTON, RI

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for DANIEL REGAN, MD. Source: openpaymentsdata.cms.gov.

Total received

$98

Largest payer

Braeburn Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

Brand vs generic prescribing mix · Generic-heavy

DANIEL REGAN, MD — brand share 6.0%
Specialty average (est.)

6% brand-name claims vs 94% generic, on 1,906 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.

1,906
Total Claims
$166K
Total Drug Cost
843
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
1,924
Total Day Supply
26,649
Brand vs Generic
6% brand / 94% generic
Brand Drug Cost
$55K
Generic Drug Cost
$111K
Opioid Claims
58 (3.0% rate)
Antibiotic Claims
679

Patient Demographics

Average Patient Age
67.3 years
Avg HCC Risk Score
1.15
Gender Split
64% female / 36% male
Age Distribution
<65: 255, 65-74: 319, 75-84: 192, 85+: 77

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
471
Prednisone
212
Azithromycin
179
Sulfamethoxazole-Trimethoprim
Sulfamethoxazole/Trimethoprim
119
Amoxicillin
113
Cefuroxime
Cefuroxime Axetil
75
Naproxen
73
Doxycycline Monohydrate
54
Cyclobenzaprine Hcl
53
Suboxone
Buprenorphine Hcl/Naloxone Hcl
52

* 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 DANIEL REGAN, 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

DANIEL REGAN, MD's 1,906 claims are above the specialty average of 1,134.

Nearby Addiction Medicine (Family Medicine) Physician Providers in Rhode Island

Other clinicians with the same primary specialty enrolled in Rhode Island, drawn from the same CMS NPPES roster as REGAN.

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

Frequently Asked Questions

What is DANIEL REGAN, MD's specialty?
DANIEL REGAN, MD specializes in Addiction Medicine (Family Medicine) Physician and practices in JOHNSTON, Rhode Island. Credentials: MD.
How much does DANIEL REGAN, MD prescribe under Medicare Part D?
In 2023, DANIEL REGAN, MD wrote 1,906 Medicare Part D claims totaling $166K in drug costs for 843 beneficiaries.
Where is DANIEL REGAN, MD located?
DANIEL REGAN, MD is located at 1526 ATWOOD AVE, JOHNSTON, RI, 02919. Phone: (401) 273-9400.
What is DANIEL REGAN, MD's NPI number?
DANIEL REGAN, MD's National Provider Identifier (NPI) is 1972619864, issued on 08/22/2006.
Does DANIEL REGAN, MD prescribe more brand-name or generic drugs?
DANIEL REGAN, MD's prescribing is 6% brand-name and 94% generic drugs by claim count, with $55K in brand drug costs.
Does DANIEL REGAN, MD prescribe opioids?
Yes, DANIEL REGAN, MD had 58 opioid claims in 2023 with an opioid prescribing rate of 3.0%.
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 DANIEL REGAN, MD prescribe most often?
Based on 2023 Medicare Part D data, DANIEL REGAN, MD's most frequently prescribed drugs include Buprenorphine-Naloxone, Prednisone, Azithromycin. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does DANIEL REGAN, MD accept Medicare?
DANIEL REGAN, MD appears in CMS Medicare data with 1,906 Part D claims and 843 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify DANIEL REGAN, MD's credentials?
DANIEL REGAN, MD's NPI is 1972619864 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