2026 NPPES data Family Medicine Physician NPI 1477658821 MD
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ALAN WEISS, MD

Family Medicine Physician in GUILFORD, 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
1K
Medicare Part D claims · 255 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
91%
generic claims · 9% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
93.2757/100
▲ 10 pts above national avg 83.1 · [object Object]

What the federal data shows

ALAN WEISS, MD reported a CMS MIPS final score of 93.2757/100 — above the 83.1 national average — and filed 1,020 Medicare Part D claims in 2023.

93.2757/100
MIPS score · +10 vs avg
1K
Part D claims, 2023
91%
generic prescribing
Likely
board-certified (heuristic)

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.

ALAN WEISS, MD's MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

93 Top 29% higher than 71% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

ALAN WEISS, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about ALAN WEISS, MD?

High performer (top quartile)

NPI registry status

Active

Issued 09/13/2006

NPI 1477658821

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

1,020 70% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

MIPS final score

93.2757/100 10.175700000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Connecticut

How Family Medicine Physician compares to other specialties among Connecticut providers

Connecticut providers

Family Medicine Physician share within Connecticut

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

Medicare quality performance — MIPS

ALAN WEISS, MD's 2023 MIPS final score plotted against the Family Medicine Physician national average

High performer (top quartile)
MIPS Final Score
93.2757/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Family Medicine Physician) — 93.2757/100 vs national avg 83.1

0%100%National avg83%93.3%
MIPS final score (Family Medicine Physician) — 93.2757/100 vs national avg 83.1

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).

ALAN WEISS, MD appears in the CMS NPPES registry as a Family Medicine Physician provider holding MD credentials at 652 BOSTON POST ROAD, GUILFORD, CT, 06437, with a listed phone of (203) 453-0677. NPI 1477658821 was issued on 09/13/2006. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WEISS 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 1,020 prescription claims written by this provider, covering 255 Medicare beneficiaries and totaling roughly $73K in drug spend, split 9% brand-name and 91% 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 93.2757/100 for the 2023 performance year (Quality 81.7219), compared with the national average of 83.1.

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

652 BOSTON POST ROAD
GUILFORD, CT 06437

Provider Details

NPI 1477658821
Specialty Family Medicine Physician
Credentials MD
Gender Male
NPI Issued 09/13/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

93.2757
Final Score
Avg: 83.1
81.7219
Quality
78.0315
Promoting Interoperability

Reporting: Alternative Payment Model

Brand vs generic prescribing mix · Generic-heavy

ALAN WEISS, MD — brand share 9.0%
Specialty average (est.)

9% brand-name claims vs 91% generic, on 1,020 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.

1,020
Total Claims
$73K
Total Drug Cost
255
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,702
Total Day Supply
80,892
Brand vs Generic
9% brand / 91% generic
Brand Drug Cost
$56K
Generic Drug Cost
$16K

Patient Demographics

Average Patient Age
74.9 years
Avg HCC Risk Score
0.97
Gender Split
34% female / 66% male

Top Prescribed Drugs (Medicare Part D)

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

What ALAN WEISS, MD 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
Atorvastatin Calcium
140
Lisinopril
88
Hydrochlorothiazide
61
Metformin Hcl
57
Losartan Potassium
53
Amlodipine Besylate
46
Levothyroxine Sodium
45
Sertraline Hcl
33
Simvastatin
32
Metoprolol Succinate
31

* 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 ALAN WEISS, MD 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

ALAN WEISS, MD's 1,020 claims are below the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Connecticut

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

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

Frequently Asked Questions

What is ALAN WEISS, MD's specialty?
ALAN WEISS, MD specializes in Family Medicine Physician and practices in GUILFORD, Connecticut. Credentials: MD.
How much does ALAN WEISS, MD prescribe under Medicare Part D?
In 2023, ALAN WEISS, MD wrote 1,020 Medicare Part D claims totaling $73K in drug costs for 255 beneficiaries.
What is ALAN WEISS, MD's Medicare quality score?
ALAN WEISS, MD has a CMS MIPS Final Score of 93.2757/100 (Quality: 81.7219). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is ALAN WEISS, MD located?
ALAN WEISS, MD is located at 652 BOSTON POST ROAD, GUILFORD, CT, 06437. Phone: (203) 453-0677.
What is ALAN WEISS, MD's NPI number?
ALAN WEISS, MD's National Provider Identifier (NPI) is 1477658821, issued on 09/13/2006.
Does ALAN WEISS, MD prescribe more brand-name or generic drugs?
ALAN WEISS, MD's prescribing is 9% brand-name and 91% generic drugs by claim count, with $56K in brand drug costs.
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 ALAN WEISS, MD prescribe most often?
Based on 2023 Medicare Part D data, ALAN WEISS, MD's most frequently prescribed drugs include Atorvastatin Calcium, Lisinopril, Hydrochlorothiazide. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does ALAN WEISS, MD accept Medicare?
ALAN WEISS, MD appears in CMS Medicare data with 1,020 Part D claims and 255 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify ALAN WEISS, MD's credentials?
ALAN WEISS, MD's NPI is 1477658821 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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