NPI registry status
Active
2026 NPPES data Primary Care Nurse Practitioner NPI 1891778239 CRNP
Verify on CMS → Nellie Lazar, CRNP
Primary Care Nurse Practitioner in Philadelphia, Pennsylvania.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 10,597 in Primary Care 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
13
Medicare Part D claims · Primary Care Nurse Practitioner avg: 1K
Generic prescribing
0%
generic claims · 85% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$59.19
1 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2024
What the federal data shows
Nellie Lazar, CRNP filed 13 Medicare Part D claims in 2024 as a Primary Care Nurse Practitioner in Philadelphia, Pennsylvania, prescribing 0% generic.
- 13
- Part D claims, 2024
- 0%
- generic prescribing
- $59.19
- industry payments (Sunshine Act)
- ≥0th
- pct by Part D claim volume (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 Nellie Lazar, CRNP
Federal records show an active NPI with Medicare Part D prescribing activity — verifiable registry data, not a proprietary rating.
- Verified
NPI registry status
Active listing in the CMS National Provider Identifier Registry (NPI 1891778239), first enumerated 11/21/2005.
Source: CMS NPPES
- Reported
Medicare Part D participation
Filed 13 Medicare Part D prescription claims in the 2023 CMS public use file — indicates active Medicare prescribing participation.
Source: CMS Part D Prescriber PUF
- Reported
Industry payment transparency
$59.19 in reported industry payments (1 transfers) in 2024 under the federal Sunshine Act — disclosed transfers of value, not a quality rating.
Source: CMS Open Payments
- 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.
Compare Lazar with other Primary Care Nurse Practitioner providers
Same primary specialty, same federal CMS NPPES roster.
Also enrolled in Pennsylvania
- Lisa Abdul-Haqq, CRNP Philadelphia, PA
- Mercy Abraham, CRNP Feasterville Trevose, PA
- Sonia Abraham Langhorne, PA
- Kenneth Agnew, CRNP Erie, PA
- Deborah Aigner, CRNP Altoona, PA
- Soumya Alex Bensalem, PA
Other specialties in Philadelphia: Student in an Organized Health Care Education/Training Program (5,177) · Internal Medicine Physician (2,259) · Pediatrics Physician (1,627) · Pharmacist (1,617)
CMS NPPES provider registry desk
NPI 1891778239 · Primary Care Nurse Practitioner
NPI-10 · ENUM-LEGACY · TAX-MID · RX-TRACE · BOOK-THIN · PHOTO-ENUM
- NPI-10 1891778239
- ENUM-LEGACY 2005
- TAX-MID 11K Primary Care
- RX-TRACE 13
- BOOK-THIN 456 in Pennsylvania
- PHOTO-ENUM Jacquelyn Kimball, MSN · 2005
Nellie Lazar, CRNP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2024, across all CMS prescribers nationally
13 ≥ 0th percentile 0% of 1,416,883 prescribers are in lower value bands
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.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2024
What does the federal data show about Nellie Lazar, CRNP?
Quality data not reportedPrimary specialty
Primary Care Nurse Practitioner
Medicare Part D claims
13 99% vs specialty avg
Specialty distribution in Pennsylvania
How Primary Care Nurse Practitioner compares to other specialties among Pennsylvania providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Primary Care Nurse Practitioner. Verify directly:
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 | 1891778239 |
|---|---|
| Specialty | Primary Care Nurse Practitioner |
| Credentials | CRNP |
| Gender | Female |
| NPI Issued | 11/21/2005 |
Industry payments received (2024) - CMS Open Payments transparency data
The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for Nellie Lazar, CRNP. Source: openpaymentsdata.cms.gov.
Total received
$59
Largest payer
ViiV Healthcare Company
Most common payment type
Food and Beverage
Industry payments are not necessarily indicators of bias, they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.
Brand vs generic prescribing mix · Brand-heavy
Nellie Lazar, CRNP - brand share 85.0%
Primary Care Nurse Practitioner average
85% brand-name claims vs 0% generic, on 13 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.
13
Total Claims
$2K
Total Drug Cost
N/A
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 13
- Total Day Supply
- 337
- Brand vs Generic
- 85% brand / 0% generic
- Brand Drug Cost
- $2K
Patient Demographics
- Average Patient Age
- 22.0 years
- Avg HCC Risk Score
- 0.75
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2024. Based on Medicare Part D data only.
| Drug | Claims |
|---|---|
| Slynd Drospirenone | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Primary Care Nurse Practitioner Overview
How Nellie Lazar, CRNP fits within the Primary Care Nurse Practitioner landscape nationally.
10,597
Primary Care Nurse Practitioner Providers in US
54
States with Primary Care Nurse Practitioner
1,471
Avg Claims per Provider
Nellie Lazar, CRNP's 13 claims are below the specialty average of 1,471.
Nationwide Primary Care Nurse Practitioner peers with similar MIPS or enrollment year
Two federal-record peer sets for Lazar, both outside Pennsylvania so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2005)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Primary Care Nurse Practitioner Providers in Pennsylvania
Other clinicians with the same primary specialty enrolled in Pennsylvania, drawn from the same CMS NPPES roster as Lazar.
One of 456 Primary Care Nurse Practitioner providers enrolled in Pennsylvania, 11 are shown on this page.
Dr. Wileen Alexis
DNP, CRNP
Philadelphia, PA
Sara Allen
Waynesboro, PA
Stacey Ambrose
MSN, CRNP
Wyomissing, PA
Emmanuel Amoah
CRNP
Wynnewood, PA
Jennifer Amour
CRNP
State College, PA
Compare Primary Care Nurse Practitioner nationally: see state-by-state distribution →
Frequently Asked Questions
What is Nellie Lazar, CRNP's specialty? ▼
Nellie Lazar, CRNP specializes in Primary Care Nurse Practitioner and practices in Philadelphia, Pennsylvania. Credentials: CRNP.
How much does Nellie Lazar, CRNP prescribe under Medicare Part D? ▼
In 2024, Nellie Lazar, CRNP wrote 13 Medicare Part D claims totaling $2K in drug costs for N/A beneficiaries.
Where is Nellie Lazar, CRNP located? ▼
Nellie Lazar, CRNP is located at 3535 MARKET ST. STE. 1371, Philadelphia, PA, 19104. Phone: (215) 590-3626.
What is Nellie Lazar, CRNP's NPI number? ▼
Nellie Lazar, CRNP's National Provider Identifier (NPI) is 1891778239, issued on 11/21/2005.
Does Nellie Lazar, CRNP prescribe more brand-name or generic drugs? ▼
Nellie Lazar, CRNP's prescribing is 85% brand-name and 0% generic drugs by claim count, with $2K in brand drug costs.
How many Primary Care Nurse Practitioner providers are there in the US? ▼
There are 10,597 Primary Care Nurse Practitioner providers across 54 states in the US. The average Primary Care Nurse Practitioner provider writes 1,471 Medicare Part D claims per year.
What drugs does Nellie Lazar, CRNP prescribe most often? ▼
Based on 2024 Medicare Part D data, Nellie Lazar, CRNP's most frequently prescribed drugs include Slynd. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Nellie Lazar, CRNP accept Medicare? ▼
Nellie Lazar, CRNP appears in CMS Medicare data with 13 Part D claims and N/A Medicare beneficiaries in 2024. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Nellie Lazar, CRNP's credentials? ▼
Nellie Lazar, CRNP's NPI is 1891778239 with credentials CRNP. 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.
- 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 September 2026.