NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1568813558 NP
Verify on CMS → John Lambert, NP
Nurse Practitioner in Brookhaven, Mississippi.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 89,808 in Nurse Practitioner, 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
1K
Medicare Part D claims · 521 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
95%
generic claims · 5% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
100/100
▲ 17 pts above national avg 83.5 · Exceptional
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
John Lambert, NP reported a CMS MIPS final score of 100/100 - above the 83.5 national average - and filed 1,004 Medicare Part D claims in 2024.
- 100/100
- MIPS score · +17 vs avg
- 1K
- Part D claims, 2024
- 95%
- generic prescribing
- ≥92nd
- pct among measured MIPS (lower-bound band)
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 John Lambert, NP
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 1568813558), first enumerated 06/30/2016.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 1,004 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 100/100 in the Quality Payment Program — a federal quality measure, not a patient review.
Source: CMS Quality Payment Program
- Reported
Hospital affiliations
1 CMS Care Compare hospital affiliation on record — practice footprint from the Doctors and Clinicians file.
Source: CMS Care Compare
- 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 1568813558 · Nurse Practitioner
NPI-10 · ENUM-MID · TAX-MEGA · MIPS-ELITE · RX-MID · BOOK-LIGHT · PHOTO-FINISH
- NPI-10 1568813558
- ENUM-MID 2016
- TAX-MEGA 90K Nurse Practitioner
- MIPS-ELITE 100/100
- RX-MID 1,004
- BOOK-LIGHT 1,096 in Mississippi
- PHOTO-FINISH Hangama Abassi · ±0.0
MIPS final-score neighbourhood
Same-specialty nationwide peers by CMS final score, not geographic proximity
- Lambert · this p…
Lambert · this provider
100 MIPS pts
- Shirley Andrew ·…
Shirley Andrew
100 MIPS pts
- Hangama Abassi ·…
Hangama Abassi
100 MIPS pts
- Rose Alfano · near
Rose Alfano
100 MIPS pts
- Philip Alian · n…
Philip Alian
100 MIPS pts
What this shows Nearest measured MIPS peers for this NUCC specialty (2023 performance year).
John Lambert, NP'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.
100 ≥ 92nd percentile 92% of 454,083 measured providers are in lower value bands
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 John Lambert, NP sits
This provider among nurse practitioner peers
Across the 13,205 nurse practitioner providers who report both Medicare Part D prescribing and a MIPS quality score, John Lambert, NP writes more Part D claims than 71% of them and scores higher on MIPS quality than 93% - placing this provider in the high-volume, high-quality quadrant. Volume reflects patient-panel size and specialty, not quality; the two axes are independent.
Each dot is one nurse practitioner peer from a representative sample of 60; the gold marker is John Lambert, NP. Source: CMS Medicare Part D Prescriber data and the CMS Merit-based Incentive Payment System, 2023.
What does the federal data show about John Lambert, NP?
High performer (top quartile)Primary specialty
Nurse Practitioner
Medicare Part D claims
1,004 12% vs specialty avg
MIPS final score
100/100 16.5 pts vs avg
Specialty distribution in Mississippi
How Nurse Practitioner compares to other specialties among Mississippi providers
Medicare quality performance, MIPS
John Lambert, NP's 2023 MIPS final score plotted against the Nurse Practitioner national average
- MIPS Final Score
- 100/100
- vs 83.5 national avg · 2023 performance year
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
Provider Details
| NPI | 1568813558 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | NP |
| Gender | Male |
| NPI Issued | 06/30/2016 |
CMS Quality Score (MIPS)
Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.
100
Final Score
Measured-score avg: 83.5
100
Quality
Reporting: Group practice
Hospital and facility affiliations
Facilities where John Lambert, NP 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.
Kings Daughters Medical Center
Brookhaven, MS
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
John Lambert, NP - brand share 5.0%
Nurse Practitioner average
5% brand-name claims vs 95% generic, on 1,004 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.
1,004
Total Claims
$11K
Total Drug Cost
521
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 1,004.333
- Total Day Supply
- 7,300
- Brand vs Generic
- 5% brand / 95% generic
- Brand Drug Cost
- $5K
- Generic Drug Cost
- $6K
- Opioid Claims
- 88 (8.8% rate)
- Antibiotic Claims
- 321
Patient Demographics
- Average Patient Age
- 69.5 years
- Avg HCC Risk Score
- 1.93
- Gender Split
- 63% female / 37% male
- Age Distribution
- <65: 136, 65-74: 205, 75-84: 135, 85+: 45
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
What John Lambert, NP prescribes most
Top Medicare Part D drugs by claim count, 2024
- Ondansetron Odt
Ondansetron Odt
164 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
117 claims
- Prednisone
Prednisone
69 claims
- Hydrocodone-Acetam… 62
Hydrocodone-Acetaminophen
62 claims
- Naproxen 59
Naproxen
59 claims
- Ciprofloxacin Hcl 54
Ciprofloxacin Hcl
54 claims
- Cyclobenzaprine Hcl 49
Cyclobenzaprine Hcl
49 claims
- Promethazine Hcl 42
Promethazine Hcl
42 claims
| Drug | Claims |
|---|---|
| Ondansetron Odt Ondansetron | 164 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 117 |
| Prednisone | 69 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 62 |
| Naproxen | 59 |
| Ciprofloxacin Hcl | 54 |
| Cyclobenzaprine Hcl | 49 |
| Promethazine Hcl | 42 |
| Doxycycline Monohydrate | 33 |
| Levofloxacin | 25 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How John Lambert, NP fits within the Nurse Practitioner landscape nationally.
89,808
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,144
Avg Claims per Provider
John Lambert, NP's 1,004 claims are below the specialty average of 1,144.
Nationwide Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Lambert, both outside Mississippi so the neighborhoods are not geographic containment.
Similar MIPS final score
Nearest same-specialty clinicians by CMS MIPS final score (100 here).
Same NPPES enumeration year (2016)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Nurse Practitioner Providers in Mississippi
Other clinicians with the same primary specialty enrolled in Mississippi, drawn from the same CMS NPPES roster as Lambert.
One of 1,096 Nurse Practitioner providers enrolled in Mississippi, 5 are shown here.
Mary Abrams
CFNP
Columbus, MS
Barbara Adams
NP
Greenville, MS
Olamide Adeleye
NP
Southaven, MS
Sonya Adkins
NP
New Albany, MS
Julie Ainsworth
NP
Gulfport, MS
Compare Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is John Lambert, NP's specialty? ▼
John Lambert, NP specializes in Nurse Practitioner and practices in Brookhaven, Mississippi. Credentials: NP.
How much does John Lambert, NP prescribe under Medicare Part D? ▼
In 2024, John Lambert, NP wrote 1,004 Medicare Part D claims totaling $11K in drug costs for 521 beneficiaries.
What is John Lambert, NP's Medicare quality score? ▼
John Lambert, NP has a CMS MIPS Final Score of 100/100 (Quality: 100). 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 John Lambert, NP located? ▼
John Lambert, NP is located at 1036 D A BIGLANE DR, Brookhaven, MS, 39601. Phone: (601) 835-1182.
What is John Lambert, NP's NPI number? ▼
John Lambert, NP's National Provider Identifier (NPI) is 1568813558, issued on 06/30/2016.
Does John Lambert, NP prescribe more brand-name or generic drugs? ▼
John Lambert, NP's prescribing is 5% brand-name and 95% generic drugs by claim count, with $5K in brand drug costs.
Does John Lambert, NP prescribe opioids? ▼
Yes, John Lambert, NP had 88 opioid claims in 2024 with an opioid prescribing rate of 8.8%.
How many Nurse Practitioner providers are there in the US? ▼
There are 89,808 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,144 Medicare Part D claims per year.
What drugs does John Lambert, NP prescribe most often? ▼
Based on 2024 Medicare Part D data, John Lambert, NP's most frequently prescribed drugs include Ondansetron Odt, Amoxicillin-Clavulanate Potass, Prednisone. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does John Lambert, NP accept Medicare? ▼
John Lambert, NP appears in CMS Medicare data with 1,004 Part D claims and 521 Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify John Lambert, NP's credentials? ▼
John Lambert, NP's NPI is 1568813558 with credentials NP. 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
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.