2026 NPPES data Geriatric Medicine (Internal Medicine) Physician NPI 1629261193 MD
Verify on CMS →

LEEN BAKKALI, MD

Geriatric Medicine (Internal Medicine) Physician in NEW HAVEN, 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
2K
Medicare Part D claims · 346 beneficiaries · Geriatric Medicine (Internal Medicine) Physician avg: 4K
Generic prescribing
97%
generic claims · 3% 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 reveals: LEEN BAKKALI, MD is a Geriatric Medicine (Internal Medicine) Physician ([object Object]) practicing in NEW HAVEN, Connecticut with a Medicare Part D prescribing footprint of 2K claims across 346 beneficiaries — 3% brand-name prescribing . Their CMS MIPS Final Score of 93.2757/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: LEEN BAKKALI, MD reported a CMS MIPS final score of 93.2757 out of 100, above the 83.1 national average, and filed 1,553 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

LEEN BAKKALI, MD practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 2 hospital affiliations — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

LEEN BAKKALI, MD at a glance

High performer (top quartile)

NPI registry status

Active

Issued 08/19/2007

NPI 1629261193

Primary specialty

Geriatric Medicine (Internal Medicine) Physician

Niche

4,161 US NPIs in this specialty

Medicare Part D claims

1,553 65% vs specialty avg

2023 prescription claims

Specialty avg: 4,450

MIPS final score

93.2757/100 10.175700000000006% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Connecticut

How Geriatric Medicine (Internal Medicine) Physician compares to other specialties among Connecticut providers

Connecticut providers

Geriatric Medicine (Internal Medicine) Physician share within Connecticut

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

Medicare quality performance — MIPS

LEEN BAKKALI, MD's 2023 MIPS final score plotted against the Geriatric Medicine (Internal 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 (Geriatric Medicine (Internal Medicine) Physician) — 93.2757/100 vs national avg 83.1

0%100%National avg83%93.3%
MIPS final score (Geriatric Medicine (Internal 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).

LEEN BAKKALI, MD is a Geriatric Medicine (Internal Medicine) Physician provider practicing in NEW HAVEN, Connecticut, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: MD. NPI: 1629261193. 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.

LEEN BAKKALI, MD appears in the CMS NPPES registry as a Geriatric Medicine (Internal Medicine) Physician provider holding MD credentials at 874 HOWARD AVE, NEW HAVEN, CT, 06519, with a listed phone of (203) 688-8200. NPI 1629261193 was issued on 08/19/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BAKKALI 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 1,553 prescription claims written by this provider, covering 346 Medicare beneficiaries and totaling roughly $74K in drug spend, split 3% brand-name and 97% 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.

Geriatric Medicine (Internal Medicine) Physician is a narrow specialty nationwide, with 4,161 enrolled providers across 52 states and an average of 4,450 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

874 HOWARD AVE
NEW HAVEN, CT 06519

Provider Details

NPI 1629261193
Specialty Geriatric Medicine (Internal Medicine) Physician
Credentials MD
Gender Female
NPI Issued 08/19/2007

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

Hospital and facility affiliations

Facilities where LEEN BAKKALI, 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.

NORTHEAST MEDICAL GROUP INC
BRIDGEPORT, CT
REHABILITATION ASSOCIATES INC
SHELTON, 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 · Generic-heavy

LEEN BAKKALI, MD — brand share 3.0%
Specialty average (est.)

3% brand-name claims vs 97% generic, on 1,553 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.

1,553
Total Claims
$74K
Total Drug Cost
346
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
2,699
Total Day Supply
80,149
Brand vs Generic
3% brand / 97% generic
Brand Drug Cost
$25K
Generic Drug Cost
$49K

Patient Demographics

Average Patient Age
82.5 years
Avg HCC Risk Score
1.79
Gender Split
68% female / 32% male

Top Prescribed Drugs (Medicare Part D)

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

Drug Claims
Donepezil Hcl
390
Trazodone Hcl
251
Mirtazapine
158
Sertraline Hcl
121
Citalopram Hbr
Citalopram Hydrobromide
95
Escitalopram Oxalate
87
Memantine Hcl
81
Risperidone
80
Rivastigmine
43
Myrbetriq
Mirabegron
33

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

Geriatric Medicine (Internal Medicine) Physician Overview

How LEEN BAKKALI, MD fits within the Geriatric Medicine (Internal Medicine) Physician landscape nationally.

4,161
Geriatric Medicine (Internal Medicine) Physician Providers in US
52
States with Geriatric Medicine (Internal Medicine) Physician
4,450
Avg Claims per Provider

LEEN BAKKALI, MD's 1,553 claims are below the specialty average of 4,450.

Nearby Geriatric Medicine (Internal Medicine) Physician Providers in Connecticut

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

Compare Geriatric Medicine (Internal Medicine) Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is LEEN BAKKALI, MD's specialty?
LEEN BAKKALI, MD specializes in Geriatric Medicine (Internal Medicine) Physician and practices in NEW HAVEN, Connecticut. Credentials: MD.
How much does LEEN BAKKALI, MD prescribe under Medicare Part D?
In 2023, LEEN BAKKALI, MD wrote 1,553 Medicare Part D claims totaling $74K in drug costs for 346 beneficiaries.
What is LEEN BAKKALI, MD's Medicare quality score?
LEEN BAKKALI, 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 LEEN BAKKALI, MD located?
LEEN BAKKALI, MD is located at 874 HOWARD AVE, NEW HAVEN, CT, 06519. Phone: (203) 688-8200.
What is LEEN BAKKALI, MD's NPI number?
LEEN BAKKALI, MD's National Provider Identifier (NPI) is 1629261193, issued on 08/19/2007.
Does LEEN BAKKALI, MD prescribe more brand-name or generic drugs?
LEEN BAKKALI, MD's prescribing is 3% brand-name and 97% generic drugs by claim count, with $25K in brand drug costs.
How many Geriatric Medicine (Internal Medicine) Physician providers are there in the US?
There are 4,161 Geriatric Medicine (Internal Medicine) Physician providers across 52 states in the US. The average Geriatric Medicine (Internal Medicine) Physician provider writes 4,450 Medicare Part D claims per year.
What drugs does LEEN BAKKALI, MD prescribe most often?
Based on 2023 Medicare Part D data, LEEN BAKKALI, MD's most frequently prescribed drugs include Donepezil Hcl, Trazodone Hcl, Mirtazapine. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does LEEN BAKKALI, MD accept Medicare?
LEEN BAKKALI, MD appears in CMS Medicare data with 1,553 Part D claims and 346 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify LEEN BAKKALI, MD's credentials?
LEEN BAKKALI, MD's NPI is 1629261193 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