NPI registry status
Active
2026 NPPES data Nurse Practitioner NPI 1912340902 NP
Verify on CMS → Lisa Walker, NP
Nurse Practitioner in Norfolk, Virginia.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 87,700 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
3K
Medicare Part D claims · 365 beneficiaries · Nurse Practitioner avg: 1K
Generic prescribing
89%
generic claims · 11% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$2.2K
102 payments · CMS Open Payments (Sunshine Act)
Source: CMS Medicare Part D Prescriber Public Use File, 2023
Compiled from official public sources by the PlainDoctor editorial team.
What the federal data shows
Lisa Walker, NP filed 3,217 Medicare Part D claims in 2023 as a Nurse Practitioner in Norfolk, Virginia, prescribing 89% generic.
- 3K
- Part D claims, 2023
- 89%
- generic prescribing
- $2.2K
- industry payments (Sunshine Act)
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.
Lisa Walker, NP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
3,217 Top 11% higher than 89% of 1,370,886 prescribers
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
What does the federal data show about Lisa Walker, NP?
Quality data not reportedPrimary specialty
Nurse Practitioner
Medicare Part D claims
3,217 197% vs specialty avg
Specialty distribution in Virginia
How Nurse Practitioner compares to other specialties among Virginia 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 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).
Lisa Walker, NP appears in the CMS NPPES registry as a Nurse Practitioner provider holding NP credentials at 6275 E VIRGINIA BEACH BLVD, Norfolk, VA, 23502, with a listed phone of (757) 461-3141. NPI 1912340902 was issued on 04/09/2013.
Medicare Part D records for calendar year 2023 show 3,217 prescription claims written by this provider, covering 365 Medicare beneficiaries and totaling roughly $471K in drug spend, split 11% brand-name and 89% generic by claim count, with an opioid prescribing rate of 45.4%.
Nurse Practitioner is a high-volume specialty nationwide, with 87,700 enrolled providers across 56 states and an average of 1,084 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
Provider Details
| NPI | 1912340902 |
|---|---|
| Specialty | Nurse Practitioner |
| Credentials | NP |
| Gender | Female |
| NPI Issued | 04/09/2013 |
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 Lisa Walker, NP. Source: openpaymentsdata.cms.gov.
Total received
$2.2K
Largest payer
Lundbeck LLC
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 · Typical
Lisa Walker, NP - brand share 11.0%
Nurse Practitioner average
11% brand-name claims vs 89% generic, on 3,217 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.
3,217
Total Claims
$471K
Total Drug Cost
365
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 3,489
- Total Day Supply
- 101,905
- Brand vs Generic
- 11% brand / 89% generic
- Brand Drug Cost
- $281K
- Generic Drug Cost
- $190K
- Opioid Claims
- 1,462 (45.4% rate)
Patient Demographics
- Average Patient Age
- 63.9 years
- Avg HCC Risk Score
- 1.78
- Gender Split
- 62% female / 38% male
- Age Distribution
- <65: 168, 65-74: 157, 75-84: N/A, 85+: N/A
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Lisa Walker, NP prescribes most
Top Medicare Part D drugs by claim count, 2023
- Oxycodone Hcl
Oxycodone Hcl
588 claims
- Hydromorphone Hcl 175
Hydromorphone Hcl
175 claims
- Morphine Sulfate Er 171
Morphine Sulfate Er
171 claims
- Alprazolam 117
Alprazolam
117 claims
- Gabapentin 110
Gabapentin
110 claims
- Hydrocodone-Acetam… 106
Hydrocodone-Acetaminophen
106 claims
- Methadone Hcl 92
Methadone Hcl
92 claims
- Diazepam 91
Diazepam
91 claims
| Drug | Claims |
|---|---|
| Oxycodone Hcl | 588 |
| Hydromorphone Hcl | 175 |
| Morphine Sulfate Er Morphine Sulfate | 171 |
| Alprazolam | 117 |
| Gabapentin | 110 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 106 |
| Methadone Hcl | 92 |
| Diazepam | 91 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 86 |
| Fentanyl | 79 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Nurse Practitioner Overview
How Lisa Walker, NP fits within the Nurse Practitioner landscape nationally.
87,700
Nurse Practitioner Providers in US
56
States with Nurse Practitioner
1,084
Avg Claims per Provider
Lisa Walker, NP's 3,217 claims are above the specialty average of 1,084.
Nearby Nurse Practitioner Providers in Virginia
Other clinicians with the same primary specialty enrolled in Virginia, drawn from the same CMS NPPES roster as Walker.
Dr. Marina Abad
NP
Manassas, VA
Omar Abdel Razzaq
Midlothian, VA
Dr. Sarah Abey
FNP
Roanoke, VA
Dr. Flordeliza Ablao-Chanthavichith
N.P.
Portsmouth, VA
Dr. Margaret Adeyeri
AGNP-C
Alexandria, VA
Compare Nurse Practitioner nationally: see state-by-state distribution →
Before you book an appointment
Use this federal record as your verification checklist, not as a recommendation.
- Confirm the NPI record is current in the official CMS registry, providers update their own NPPES details, and moves can lag. Verify this NPI
- Check the active license and any disciplinary history with the Virginia medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Nurse Practitioner peer on Medicare volume and prescribing patterns. Compare providers
Medicare Part D and MIPS figures describe practice patterns in federal programs only, they are not quality ratings, and PlainDoctor does not rate, rank, or recommend providers.
Healthcare Guides
Learn more about finding, verifying, and understanding healthcare providers.
How to Find a Doctor
Step-by-step guide to choosing a provider
Verify Credentials
Check NPI, board certification & license status
Medical Specialties Explained
Who treats what and how specialties differ
Understanding Medicare Claims Data
What prescribing data reveals about a provider
In-Network vs Out-of-Network
How insurance networks affect your costs
Telehealth Guide
Virtual care options and coverage in 2026
Explore Virginia
Frequently Asked Questions
What is Lisa Walker, NP's specialty? ▼
Lisa Walker, NP specializes in Nurse Practitioner and practices in Norfolk, Virginia. Credentials: NP.
How much does Lisa Walker, NP prescribe under Medicare Part D? ▼
In 2023, Lisa Walker, NP wrote 3,217 Medicare Part D claims totaling $471K in drug costs for 365 beneficiaries.
Where is Lisa Walker, NP located? ▼
Lisa Walker, NP is located at 6275 E VIRGINIA BEACH BLVD, Norfolk, VA, 23502. Phone: (757) 461-3141.
What is Lisa Walker, NP's NPI number? ▼
Lisa Walker, NP's National Provider Identifier (NPI) is 1912340902, issued on 04/09/2013.
Does Lisa Walker, NP prescribe more brand-name or generic drugs? ▼
Lisa Walker, NP's prescribing is 11% brand-name and 89% generic drugs by claim count, with $281K in brand drug costs.
Does Lisa Walker, NP prescribe opioids? ▼
Yes, Lisa Walker, NP had 1,462 opioid claims in 2023 with an opioid prescribing rate of 45.4%.
How many Nurse Practitioner providers are there in the US? ▼
There are 87,700 Nurse Practitioner providers across 56 states in the US. The average Nurse Practitioner provider writes 1,084 Medicare Part D claims per year.
What drugs does Lisa Walker, NP prescribe most often? ▼
Based on 2023 Medicare Part D data, Lisa Walker, NP's most frequently prescribed drugs include Oxycodone Hcl, Hydromorphone Hcl, Morphine Sulfate Er. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Lisa Walker, NP accept Medicare? ▼
Lisa Walker, NP appears in CMS Medicare data with 3,217 Part D claims and 365 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Lisa Walker, NP's credentials? ▼
Lisa Walker, NP's NPI is 1912340902 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 (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
Compiled from official public sources by the PlainDoctor editorial team.
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 May 2026.