2026 NPPES data Physician Assistant NPI 1821264656 PA/C
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RICHARD BYRNS, PA/C

Physician Assistant in STAMFORD, 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.
What the federal data reveals: RICHARD BYRNS, PA/C is a Physician Assistant ([object Object]) practicing in STAMFORD, Connecticut .

What stands out: RICHARD BYRNS, PA/C specializes in Physician Assistant and practices in STAMFORD, Connecticut, listed in the federal CMS National Provider Identifier registry. Every detail on this page comes straight from federal CMS records, with no proprietary rating applied.

RICHARD BYRNS, PA/C at a glance

Quality data not reported

NPI registry status

Active

Issued 05/01/2008

NPI 1821264656

Primary specialty

Physician Assistant

High-volume

149,975 US NPIs in this specialty

Specialty distribution in Connecticut

How Physician Assistant compares to other specialties among Connecticut providers

Connecticut providers

Physician Assistant share within Connecticut

1. Physician Assistant42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Physician Assistant share within Connecticut

Specialty board-certification context

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

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

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

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

RICHARD BYRNS, PA/C is a Physician Assistant provider practicing in STAMFORD, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: PA/C. NPI: 1821264656. 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.

RICHARD BYRNS, PA/C appears in the CMS NPPES registry as a Physician Assistant provider holding PA/C credentials at 30 COMMERCE RD, STAMFORD, CT, 06902, with a listed phone of (203) 962-8382. NPI 1821264656 was issued on 05/01/2008. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BYRNS 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 prescribing data is not currently published for this NPI, which typically means the provider either wrote fewer than 11 Part D claims in the most recent reporting year, does not participate in Medicare, or practices in a specialty that rarely prescribes outpatient drugs. Absence of prescribing data is not a quality signal — many Physician Assistant providers operate outside Part D entirely.

Physician Assistant is a high-volume specialty nationwide, with 149,975 enrolled providers across 56 states and an average of 790 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

30 COMMERCE RD
STAMFORD, CT 06902

Provider Details

NPI 1821264656
Specialty Physician Assistant
Credentials PA/C
Gender Male
NPI Issued 05/01/2008

Physician Assistant Overview

How RICHARD BYRNS, PA/C fits within the Physician Assistant landscape nationally.

149,975
Physician Assistant Providers in US
56
States with Physician Assistant
790
Avg Claims per Provider

Nearby Physician Assistant Providers in Connecticut

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

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

Frequently Asked Questions

What is RICHARD BYRNS, PA/C's specialty?
RICHARD BYRNS, PA/C specializes in Physician Assistant and practices in STAMFORD, Connecticut. Credentials: PA/C.
Where is RICHARD BYRNS, PA/C located?
RICHARD BYRNS, PA/C is located at 30 COMMERCE RD, STAMFORD, CT, 06902. Phone: (203) 962-8382.
What is RICHARD BYRNS, PA/C's NPI number?
RICHARD BYRNS, PA/C's National Provider Identifier (NPI) is 1821264656, issued on 05/01/2008.
How many Physician Assistant providers are there in the US?
There are 149,975 Physician Assistant providers across 56 states in the US. The average Physician Assistant provider writes 790 Medicare Part D claims per year.
Does RICHARD BYRNS, PA/C accept Medicare?
RICHARD BYRNS, PA/C appears in CMS Medicare data. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify RICHARD BYRNS, PA/C's credentials?
RICHARD BYRNS, PA/C's NPI is 1821264656 with credentials PA/C. 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.
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