2026 NPPES data Specialist NPI 1649332909 MD.
Verify on CMS →

RAYMOND CHAGNON, MD.

Specialist in HARTFORD, 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
19
Medicare Part D claims · Specialist avg: 1K
What the federal data reveals: RAYMOND CHAGNON, MD. is a Specialist ([object Object]) practicing in HARTFORD, Connecticut with a Medicare Part D prescribing footprint of 19 claims .

What stands out: RAYMOND CHAGNON, MD. filed 19 Medicare Part D claims in 2023 across HARTFORD, Connecticut. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

RAYMOND CHAGNON, MD. at a glance

Quality data not reported

NPI registry status

Active

Issued 12/14/2006

NPI 1649332909

Primary specialty

Specialist

High-volume

69,658 US NPIs in this specialty

Medicare Part D claims

19 99% vs specialty avg

2023 prescription claims

Specialty avg: 1,474

Specialty distribution in Connecticut

How Specialist compares to other specialties among Connecticut providers

Connecticut providers

Specialist share within Connecticut

1. Specialist42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Specialist share within Connecticut

Specialty board-certification context

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

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

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

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

RAYMOND CHAGNON, MD. is a Specialist provider practicing in HARTFORD, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD.. NPI: 1649332909. 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.

RAYMOND CHAGNON, MD. appears in the CMS NPPES registry as a Specialist provider holding MD. credentials at 490 BLUE HILLS AVE, HARTFORD, CT, 06112, with a listed phone of (860) 714-2647. NPI 1649332909 was issued on 12/14/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what CHAGNON 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 19 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $645 in drug spend. 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.

Specialist is a high-volume specialty nationwide, with 69,658 enrolled providers across 55 states and an average of 1,474 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

490 BLUE HILLS AVE
HARTFORD, CT 06112

Provider Details

NPI 1649332909
Specialty Specialist
Credentials MD.
Gender Male
NPI Issued 12/14/2006

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

19
Total Claims
$645
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
31
Total Day Supply
910
Generic Drug Cost
$631

Patient Demographics

Average Patient Age
73.0 years
Avg HCC Risk Score
1.35

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Venlafaxine Hcl Er
Venlafaxine Hcl
12

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

Specialist Overview

How RAYMOND CHAGNON, MD. fits within the Specialist landscape nationally.

69,658
Specialist Providers in US
55
States with Specialist
1,474
Avg Claims per Provider

RAYMOND CHAGNON, MD.'s 19 claims are below the specialty average of 1,474.

Nearby Specialist Providers in Connecticut

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

Compare Specialist nationally: see state-by-state distribution →

Frequently Asked Questions

What is RAYMOND CHAGNON, MD.'s specialty?
RAYMOND CHAGNON, MD. specializes in Specialist and practices in HARTFORD, Connecticut. Credentials: MD..
How much does RAYMOND CHAGNON, MD. prescribe under Medicare Part D?
In 2023, RAYMOND CHAGNON, MD. wrote 19 Medicare Part D claims totaling $645 in drug costs for N/A beneficiaries.
Where is RAYMOND CHAGNON, MD. located?
RAYMOND CHAGNON, MD. is located at 490 BLUE HILLS AVE, HARTFORD, CT, 06112. Phone: (860) 714-2647.
What is RAYMOND CHAGNON, MD.'s NPI number?
RAYMOND CHAGNON, MD.'s National Provider Identifier (NPI) is 1649332909, issued on 12/14/2006.
How many Specialist providers are there in the US?
There are 69,658 Specialist providers across 55 states in the US. The average Specialist provider writes 1,474 Medicare Part D claims per year.
What drugs does RAYMOND CHAGNON, MD. prescribe most often?
Based on 2023 Medicare Part D data, RAYMOND CHAGNON, MD.'s most frequently prescribed drugs include Venlafaxine Hcl Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does RAYMOND CHAGNON, MD. accept Medicare?
RAYMOND CHAGNON, MD. appears in CMS Medicare data with 19 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RAYMOND CHAGNON, MD.'s credentials?
RAYMOND CHAGNON, MD.'s NPI is 1649332909 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