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2026 NPPES data Internal Medicine Physician NPI 1811346083 M.D.
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Douglas Lambert, M.D.

Internal Medicine Physician in Great Neck, New York.

This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 174,792 in Internal Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.

Federal data, no proprietary rating. We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
374
Medicare Part D claims · 51 beneficiaries · Internal Medicine Physician avg: 3K
Generic prescribing
0%
generic claims · 77% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
91.3/100
▲ 8 pts above national avg 83.5 · Exceptional
Verify NPI on CMS Methodology
Compiled from official public sources by the editorial process.

What the federal data shows

Douglas Lambert, M.D. reported a CMS MIPS final score of 91.3/100 - above the 83.5 national average - and filed 374 Medicare Part D claims in 2024.

91.3/100
MIPS score · +8 vs avg
374
Part D claims, 2024
0%
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.

Federal trust snapshot

What official records show about Douglas Lambert, M.D.

Federal records show an active NPI with both Medicare prescribing volume and a measured CMS quality score — objective registry data, not patient reviews.

  • Verified

    NPI registry status

    Active listing in the CMS National Provider Identifier Registry (NPI 1811346083), first enumerated 06/08/2016.

    Source: CMS NPPES

  • Reported

    Medicare Part D participation

    Filed 374 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.

    Source: CMS Part D Prescriber PUF

  • Reported

    CMS quality reporting (MIPS)

    Reported a CMS MIPS final score of 91.3/100 in the Quality Payment Program — a federal quality measure, not a patient review.

    Source: CMS Quality Payment Program

  • Reported

    Board certification signal

    Heuristic suggests board-certified status based on ABMS-eligible specialty taxonomy plus active CMS participation signals — not a direct ABMS verification.

    Source: NUCC taxonomy + CMS participation heuristic

  • Reported

    Hospital affiliations

    1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.

    Source: CMS Care Compare

  • State context

    State board disciplinary context

    New York statewide board action statistics are published annually — these figures describe aggregate state activity, not Douglas Lambert, M.D.'s individual license status. Verify directly with the state medical board.

    Source: NYSBPMC annual report 2023

  • Not in federal data

    Individual sanction lookup

    PlainDoctor does not publish per-provider disciplinary determinations. Confirm current license and any individual actions through the state medical board or FSMB verification service.

    Source: State medical board / FSMB

This trust snapshot summarizes only what appears in federal CMS/NPPES public records. It is not a composite score, star rating, patient review, or clinical recommendation. PlainDoctor never fabricates reviews or AggregateRating schema.

CMS NPPES provider registry desk

NPI 1811346083 · Internal Medicine Physician

NPI-10 · ENUM-MID · TAX-MEGA · MIPS-ABOVE · RX-LIGHT · BOOK-MID · PHOTO-FINISH

  • NPI-10 1811346083
  • ENUM-MID 2016
  • TAX-MEGA 175K Internal Medicine
  • MIPS-ABOVE 91.3/100
  • RX-LIGHT 374
  • BOOK-MID 13,725 in New York
  • PHOTO-FINISH Stephen Abraham · ±0.0

MIPS final-score neighbourhood

Same-specialty nationwide peers by CMS final score, not geographic proximity

MIPS pts

What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).

Source CMS Quality Payment Program (MIPS) As of 2023

Douglas Lambert, M.D.'s MIPS score vs every measured U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023, the federal quality measure. Clinicians whose score CMS assigned without scoring any category are excluded.

91 ≥ 61st percentile 61% of 454,083 measured providers are in lower value bands

0–10: 8,684 measured providers (2%). Below this entry. 10–20: 3,008 measured providers (1%). Below this entry. 20–30: 3,069 measured providers (1%). Below this entry. 30–40: 2,746 measured providers (1%). Below this entry. 40–50: 2,928 measured providers (1%). Below this entry. 50–60: 5,882 measured providers (1%). Below this entry. 60–70: 13,906 measured providers (3%). Below this entry. 70–80: 94,570 measured providers (21%). Below this entry. 80–90: 129,887 measured providers (29%). Below this entry. 90+: 189,403 measured providers (42%). This entry sits in this band. This provider 0 100 every measured MIPS clinician, bucketed by value

Each bar is a band; taller bars hold more measured 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.

The percentile is a conservative whole-score-point band: it counts only measured clinicians in lower score bands. A CMS MIPS metric is not a recommendation or a clinical-quality rating by PlainDoctor. See methodology § corpus placement.

Source CMS Merit-based Incentive Payment System (MIPS) · 2023

Where Douglas Lambert, M.D. sits

This provider among internal medicine physician peers

Across the 34,612 internal medicine physician providers who report both Medicare Part D prescribing and a MIPS quality score, Douglas Lambert, M.D. writes more Part D claims than 39% of them and scores higher on MIPS quality than 60% - placing this provider in the lower-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.

Lower volume · High qualityHigh volume · High qualityLower volume · Lower qualityHigh volume · Lower quality02550751000255075100Part D claim volume, percentile in specialtyMIPS quality, percentilePoint, Part D claim volume, percentile in specialty: 97 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 43 · MIPS quality, percentile: 63Point, Part D claim volume, percentile in specialty: 83 · MIPS quality, percentile: 43Point, Part D claim volume, percentile in specialty: 30 · MIPS quality, percentile: 38Point, Part D claim volume, percentile in specialty: 78 · MIPS quality, percentile: 40Point, Part D claim volume, percentile in specialty: 3 · MIPS quality, percentile: 83Point, Part D claim volume, percentile in specialty: 42 · MIPS quality, percentile: 33Point, Part D claim volume, percentile in specialty: 95 · MIPS quality, percentile: 48Point, Part D claim volume, percentile in specialty: 67 · MIPS quality, percentile: 93Point, Part D claim volume, percentile in specialty: 20 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 37 · MIPS quality, percentile: 57Point, Part D claim volume, percentile in specialty: 27 · MIPS quality, percentile: 18Point, Part D claim volume, percentile in specialty: 28 · MIPS quality, percentile: 13Point, Part D claim volume, percentile in specialty: 92 · MIPS quality, percentile: 0Point, Part D claim volume, percentile in specialty: 72 · MIPS quality, percentile: 90Point, Part D claim volume, percentile in specialty: 15 · MIPS quality, percentile: 12Point, Part D claim volume, percentile in specialty: 0 · MIPS quality, percentile: 20Point, Part D claim volume, percentile in specialty: 48 · MIPS quality, percentile: 23Point, Part D claim volume, percentile in specialty: 68 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 57 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 75 · MIPS quality, percentile: 3Point, Part D claim volume, percentile in specialty: 7 · MIPS quality, percentile: 47Point, Part D claim volume, percentile in specialty: 23 · MIPS quality, percentile: 52Point, Part D claim volume, percentile in specialty: 50 · MIPS quality, percentile: 10Point, Part D claim volume, percentile in specialty: 53 · MIPS quality, percentile: 17Point, Part D claim volume, percentile in specialty: 22 · MIPS quality, percentile: 27Point, Part D claim volume, percentile in specialty: 80 · MIPS quality, percentile: 73Point, Part D claim volume, percentile in specialty: 98 · MIPS quality, percentile: 2Point, Part D claim volume, percentile in specialty: 87 · MIPS quality, percentile: 45Point, Part D claim volume, percentile in specialty: 85 · MIPS quality, percentile: 70Point, Part D claim volume, percentile in specialty: 35 · MIPS quality, percentile: 82Point, Part D claim volume, percentile in specialty: 73 · MIPS quality, percentile: 25Point, Part D claim volume, percentile in specialty: 12 · MIPS quality, percentile: 15Point, Part D claim volume, percentile in specialty: 90 · MIPS quality, percentile: 37Point, Part D claim volume, percentile in specialty: 25 · MIPS quality, percentile: 28Point, Part D claim volume, percentile in specialty: 5 · MIPS quality, percentile: 58Point, Part D claim volume, percentile in specialty: 58 · MIPS quality, percentile: 67Point, Part D claim volume, percentile in specialty: 82 · MIPS quality, percentile: 5Point, Part D claim volume, percentile in specialty: 77 · MIPS quality, percentile: 55Point, Part D claim volume, percentile in specialty: 88 · MIPS quality, percentile: 22Point, Part D claim volume, percentile in specialty: 38 · MIPS quality, percentile: 87Point, Part D claim volume, percentile in specialty: 8 · MIPS quality, percentile: 72Point, Part D claim volume, percentile in specialty: 33 · MIPS quality, percentile: 85Point, Part D claim volume, percentile in specialty: 65 · MIPS quality, percentile: 8Point, Part D claim volume, percentile in specialty: 18 · MIPS quality, percentile: 68Point, Part D claim volume, percentile in specialty: 70 · MIPS quality, percentile: 65Point, Part D claim volume, percentile in specialty: 40 · MIPS quality, percentile: 42Point, Part D claim volume, percentile in specialty: 52 · MIPS quality, percentile: 7Point, Part D claim volume, percentile in specialty: 2 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 63 · MIPS quality, percentile: 95Point, Part D claim volume, percentile in specialty: 45 · MIPS quality, percentile: 30Point, Part D claim volume, percentile in specialty: 10 · MIPS quality, percentile: 53Point, Part D claim volume, percentile in specialty: 13 · MIPS quality, percentile: 80Point, Part D claim volume, percentile in specialty: 32 · MIPS quality, percentile: 60Point, Part D claim volume, percentile in specialty: 60 · MIPS quality, percentile: 97Point, Part D claim volume, percentile in specialty: 17 · MIPS quality, percentile: 78Point, Part D claim volume, percentile in specialty: 93 · MIPS quality, percentile: 92Point, Part D claim volume, percentile in specialty: 55 · MIPS quality, percentile: 50Point, Part D claim volume, percentile in specialty: 100 · MIPS quality, percentile: 32Point, Part D claim volume, percentile in specialty: 62 · MIPS quality, percentile: 33Douglas Lambert, M.D., Part D claim volume, percentile in specialty: 39 · MIPS quality, percentile: 60
Part D claim volume vs MIPS quality, by specialty percentile

Each dot is one internal medicine physician peer from a representative sample of 60; the gold marker is Douglas Lambert, M.D.. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.

✓
Board certification likely (heuristic, not verified)

Douglas Lambert, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 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 Douglas Lambert, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 06/08/2016

NPI 1811346083

Primary specialty

Internal Medicine Physician

High-volume

174,792 US NPIs in this specialty

Medicare Part D claims

374 87% vs specialty avg

2024 prescription claims

Specialty avg: 2,785

MIPS final score

91.3/100 7.8 pts vs avg

Exceptional band

vs 83.5 national avg

Specialty distribution in New York

How Internal Medicine Physician compares to other specialties among New York providers

New York providers
Student in an Organized Heal…8%Registered Nurse5.2%Clinical Social Worker4.9%Social Worker4.5%Speech-Language Pathologist4.5%Licensed Practical Nurse4.3%Internal Medicine Physician2.5%
Largest specialties in New York (% of in-state providers)

Medicare quality performance, MIPS

Douglas Lambert, M.D.'s 2023 MIPS final score plotted against the Internal Medicine Physician national average

High performer (top quartile)
MIPS Final Score
91.3/100
vs 83.5 national avg · 2023 performance year
0%100%National avg84%91.3%
MIPS final score (Internal Medicine Physician) - 91.3/100 vs national avg 83.5
How MIPS and board certification work

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).

Practice Address

865 NORTHERN BLVD
Great Neck, NY 11021
(516) 622-5000

Provider Details

NPI 1811346083
Specialty Internal Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 06/08/2016

CMS Quality Score (MIPS)

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

91.2532
Final Score
Measured-score avg: 83.5
74.9203
Quality
91.6794
Promoting Interoperability

Reporting: Alternative Payment Model

Hospital and facility affiliations

Facilities where Douglas Lambert, 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.

North Shore-Lij Medical PC
Glen Oaks, NY

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

License & disciplinary context - New York NYSBPMC 2023 annual report

Aggregate state board data only, NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~100K New York medical licensees in 2023 - they are NOT specific to Douglas Lambert, M.D.. To verify Douglas Lambert, M.D.'s current license status, search the NYSBPMC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

312
Total board actions, New York 2023
Across 302 cases
3.12
Actions per 1,000 licensees
New York statewide rate
probation
Most common action type
89 cases

NYSBPMC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the New York disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Brand vs generic prescribing mix · Brand-heavy

Douglas Lambert, M.D. - brand share 77.0%
Internal Medicine Physician average

77% brand-name claims vs 0% generic, on 374 2024 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 2024.

374
Total Claims
$317K
Total Drug Cost
51
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
464.2
Total Day Supply
13,308
Brand vs Generic
77% brand / 0% generic
Brand Drug Cost
$316K

Patient Demographics

Average Patient Age
64.3 years
Avg HCC Risk Score
1.23
Gender Split
73% female / 27% male
Age Distribution
<65: 16, 65-74: 28, 75-84: N/A, 85+: N/A

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.

What Douglas Lambert, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2024

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2024
Drug Claims
Ozempic
Semaglutide
214
Mounjaro
Tirzepatide
44
Topiramate
 36
Rybelsus
Semaglutide
16
Bupropion Xl
Bupropion Hcl
12
Wegovy
Semaglutide
12
Metformin Hcl Er
Metformin Hcl
11

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

More Internal Medicine Physician in NY → All providers in New York → Compare specialties →

Internal Medicine Physician Overview

How Douglas Lambert, M.D. fits within the Internal Medicine Physician landscape nationally.

174,792
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,785
Avg Claims per Provider

Douglas Lambert, M.D.'s 374 claims are below the specialty average of 2,785.

Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year

Two federal-record peer sets for Lambert, both outside New York so the neighborhoods are not geographic containment.

Similar MIPS final score

Nearest same-specialty clinicians by CMS MIPS final score (91.3 here).

Stephen Abraham 91.3 MI Michael Alston 91.3 FL Mariette Amadi 91.3 NJ George Botros 91.3 MA

Same NPPES enumeration year (2016)

Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.

Vinayak Muralidhar Portland, OR Romana Dragojevic Toledo, OH Hycienth Ahaneku San Antonio, TX Sarah Conway Boston, MA

Nearby Internal Medicine Physician Providers in New York

Other clinicians with the same primary specialty enrolled in New York, drawn from the same CMS NPPES roster as Lambert.

One of 13,725 Internal Medicine Physician providers enrolled in New York, 5 are shown here.

Dr. Deborah Aanonsen
D.O.
Staten Island, NY
Dr. Nivedita Aanur
M.D.
New York, NY
Dr. Jay Aaron
MD
Great Neck, NY
Dr. Justin Aaron
MD
New York, NY
Ahmad Abadi
Poughkeepsie, NY

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

Frequently Asked Questions

What is Douglas Lambert, M.D.'s specialty? ▼
Douglas Lambert, M.D. specializes in Internal Medicine Physician and practices in Great Neck, New York. Credentials: M.D..
How much does Douglas Lambert, M.D. prescribe under Medicare Part D? ▼
In 2024, Douglas Lambert, M.D. wrote 374 Medicare Part D claims totaling $317K in drug costs for 51 beneficiaries.
What is Douglas Lambert, M.D.'s Medicare quality score? ▼
Douglas Lambert, M.D. has a CMS MIPS Final Score of 91.3/100 (Quality: 74.9). The average MIPS Final Score across the 454,083 clinicians with at least one published category score is 83.5; clinicians whose score CMS assigned without scoring any category are excluded from that average. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is Douglas Lambert, M.D. located? ▼
Douglas Lambert, M.D. is located at 865 NORTHERN BLVD, Great Neck, NY, 11021. Phone: (516) 622-5000.
What is Douglas Lambert, M.D.'s NPI number? ▼
Douglas Lambert, M.D.'s National Provider Identifier (NPI) is 1811346083, issued on 06/08/2016.
Does Douglas Lambert, M.D. prescribe more brand-name or generic drugs? ▼
Douglas Lambert, M.D.'s prescribing is 77% brand-name and 0% generic drugs by claim count, with $316K in brand drug costs.
How many Internal Medicine Physician providers are there in the US? ▼
There are 174,792 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,785 Medicare Part D claims per year.
What drugs does Douglas Lambert, M.D. prescribe most often? ▼
Based on 2024 Medicare Part D data, Douglas Lambert, M.D.'s most frequently prescribed drugs include Ozempic, Mounjaro, Topiramate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Douglas Lambert, M.D. accept Medicare? ▼
Douglas Lambert, M.D. appears in CMS Medicare data with 374 Part D claims and 51 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Douglas Lambert, M.D.'s credentials? ▼
Douglas Lambert, M.D.'s NPI is 1811346083 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

View source datasets and methodology notes
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 (2024). 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 August 2026 (NPPES) / 2024 (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

Compiled from official public sources by the editorial process.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of August 2026.