2026 NPPES data Family Medicine Physician NPI 1366893281 M.D.
Verify on CMS →

CHADI BERJAOUI, M.D.

Family Medicine Physician in OLD LYME, 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
7K
Medicare Part D claims · 630 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
86%
generic claims · 14% brand-name · higher generic rates reduce patient out-of-pocket costs

What the federal data shows

CHADI BERJAOUI, M.D. filed 7,230 Medicare Part D claims in 2023 as a Family Medicine Physician in OLD LYME, Connecticut, prescribing 86% generic.

7K
Part D claims, 2023
86%
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.

CHADI BERJAOUI, M.D.'s Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

7,230 Top 3% higher than 97% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). Below this entry. 400–600: 90,619 prescribers (7%). Below this entry. 600–800: 56,224 prescribers (4%). Below this entry. 800–1,000: 40,919 prescribers (3%). Below this entry. 1,000–1,200: 31,827 prescribers (2%). Below this entry. 1,200–1,400: 26,224 prescribers (2%). Below this entry. 1,400–1,600: 21,710 prescribers (2%). Below this entry. 1,600–1,800: 19,072 prescribers (1%). Below this entry. 1,800–2,000: 16,451 prescribers (1%). Below this entry. 2,000–2,200: 213,991 prescribers (16%). This entry sits in this band. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. 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 Medicare Part D Prescriber Public Use File · 2023

Board certification likely (heuristic — not verified)

CHADI BERJAOUI, M.D. 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).

What does the federal data show about CHADI BERJAOUI, M.D.?

Quality data not reported

NPI registry status

Active

Issued 06/22/2016

NPI 1366893281

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

7,230 112% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

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

Specialty board-certification context

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

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

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

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

CHADI BERJAOUI, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at 19 HALLS RD, OLD LYME, CT, 06371, with a listed phone of (860) 434-8300. NPI 1366893281 was issued on 06/22/2016. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BERJAOUI 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 7,230 prescription claims written by this provider, covering 630 Medicare beneficiaries and totaling roughly $749K 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.

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

19 HALLS RD
OLD LYME, CT 06371

Provider Details

NPI 1366893281
Specialty Family Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 06/22/2016

Hospital and facility affiliations

Facilities where CHADI BERJAOUI, M.D. 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.

NORTHEAST MEDICAL GROUP INC
OLD LYME, CT

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

Brand vs generic prescribing mix · Typical

CHADI BERJAOUI, M.D. — brand share 14.0%
Specialty average (est.)

14% brand-name claims vs 86% generic, on 7,230 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.

7,230
Total Claims
$749K
Total Drug Cost
630
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
17,062
Total Day Supply
501,733
Brand vs Generic
14% brand / 86% generic
Brand Drug Cost
$596K
Generic Drug Cost
$147K
Antibiotic Claims
127

Patient Demographics

Average Patient Age
72.3 years
Avg HCC Risk Score
1.21
Gender Split
54% female / 46% male
Age Distribution
<65: 74, 65-74: 313, 75-84: 185, 85+: 58

Top Prescribed Drugs (Medicare Part D)

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

What CHADI BERJAOUI, M.D. 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
391
Levothyroxine Sodium
364
Losartan Potassium
309
Amlodipine Besylate
281
Lisinopril
232
Metformin Hcl
219
Gabapentin
190
Omeprazole
161
Albuterol Sulfate Hfa
Albuterol Sulfate
137
Furosemide
137

* 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 CHADI BERJAOUI, M.D. 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

CHADI BERJAOUI, M.D.'s 7,230 claims are above 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 BERJAOUI.

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

Frequently Asked Questions

What is CHADI BERJAOUI, M.D.'s specialty?
CHADI BERJAOUI, M.D. specializes in Family Medicine Physician and practices in OLD LYME, Connecticut. Credentials: M.D..
How much does CHADI BERJAOUI, M.D. prescribe under Medicare Part D?
In 2023, CHADI BERJAOUI, M.D. wrote 7,230 Medicare Part D claims totaling $749K in drug costs for 630 beneficiaries.
Where is CHADI BERJAOUI, M.D. located?
CHADI BERJAOUI, M.D. is located at 19 HALLS RD, OLD LYME, CT, 06371. Phone: (860) 434-8300.
What is CHADI BERJAOUI, M.D.'s NPI number?
CHADI BERJAOUI, M.D.'s National Provider Identifier (NPI) is 1366893281, issued on 06/22/2016.
Does CHADI BERJAOUI, M.D. prescribe more brand-name or generic drugs?
CHADI BERJAOUI, M.D.'s prescribing is 14% brand-name and 86% generic drugs by claim count, with $596K 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 CHADI BERJAOUI, M.D. prescribe most often?
Based on 2023 Medicare Part D data, CHADI BERJAOUI, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Levothyroxine Sodium, Losartan Potassium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does CHADI BERJAOUI, M.D. accept Medicare?
CHADI BERJAOUI, M.D. appears in CMS Medicare data with 7,230 Part D claims and 630 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify CHADI BERJAOUI, M.D.'s credentials?
CHADI BERJAOUI, M.D.'s NPI is 1366893281 with credentials M.D.. 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