NPI registry status
Active
2026 NPPES data Social Worker NPI 1528360450 FNP-C
Verify on CMS → Gregory Walter, FNP-C
Social Worker in Rocky Mount, North Carolina.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 140,115 in Social Worker, 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
431
Medicare Part D claims · 67 beneficiaries · Social Worker avg: 1K
Generic prescribing
77%
generic claims · 21% brand-name · higher generic rates reduce patient out-of-pocket costs
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
Gregory Walter, FNP-C filed 431 Medicare Part D claims in 2023 as a Social Worker in Rocky Mount, North Carolina, prescribing 77% generic.
- 431
- Part D claims, 2023
- 77%
- generic prescribing
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.
Gregory Walter, FNP-C's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
431 Top 38% higher than 62% 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 Gregory Walter, FNP-C?
Quality data not reportedPrimary specialty
Social Worker
Medicare Part D claims
431 71% vs specialty avg
Specialty distribution in North Carolina
How Social Worker compares to other specialties among North Carolina 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 Social Worker. 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).
Gregory Walter, FNP-C appears in the CMS NPPES registry as a Social Worker provider holding FNP-C credentials at 300 N GRACE ST, Rocky Mount, NC, 27804, with a listed phone of (252) 210-9856. NPI 1528360450 was issued on 11/29/2010.
Medicare Part D records for calendar year 2023 show 431 prescription claims written by this provider, covering 67 Medicare beneficiaries and totaling roughly $85K in drug spend, split 21% brand-name and 77% generic by claim count, with an opioid prescribing rate of 5.6%.
Social Worker is a high-volume specialty nationwide, with 140,115 enrolled providers across 54 states and an average of 1,486 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 | 1528360450 |
|---|---|
| Specialty | Social Worker |
| Credentials | FNP-C |
| Gender | Male |
| NPI Issued | 11/29/2010 |
Hospital and facility affiliations
Facilities where Gregory Walter, FNP-C 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.
Iliuliuk Family And Health Services Inc
Unalaska, AK
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 · Typical
Gregory Walter, FNP-C - brand share 21.0%
Social Worker average
21% brand-name claims vs 77% generic, on 431 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.
431
Total Claims
$85K
Total Drug Cost
67
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 809
- Total Day Supply
- 23,153
- Brand vs Generic
- 21% brand / 77% generic
- Brand Drug Cost
- $78K
- Generic Drug Cost
- $7K
- Opioid Claims
- 24 (5.6% rate)
Patient Demographics
- Average Patient Age
- 68.4 years
- Avg HCC Risk Score
- 1.18
- Gender Split
- 57% female / 43% male
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Gregory Walter, FNP-C prescribes most
Top Medicare Part D drugs by claim count, 2023
- Metformin Hcl Er
Metformin Hcl Er
28 claims
- Ozempic
Ozempic
28 claims
- Atorvastatin Calcium
Atorvastatin Calcium
19 claims
- Losartan Potassium
Losartan Potassium
18 claims
- Lisinopril
Lisinopril
14 claims
- Hydroxyzine Pamoate
Hydroxyzine Pamoate
13 claims
- Albuterol Sulfate …
Albuterol Sulfate Hfa
12 claims
- Omeprazole
Omeprazole
12 claims
| Drug | Claims |
|---|---|
| Metformin Hcl Er Metformin Hcl | 28 |
| Ozempic Semaglutide | 28 |
| Atorvastatin Calcium | 19 |
| Losartan Potassium | 18 |
| Lisinopril | 14 |
| Hydroxyzine Pamoate | 13 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 12 |
| Omeprazole | 12 |
| Hydrochlorothiazide | 11 |
| Oxycodone-Acetaminophen Oxycodone Hcl/Acetaminophen | 11 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Social Worker Overview
How Gregory Walter, FNP-C fits within the Social Worker landscape nationally.
140,115
Social Worker Providers in US
54
States with Social Worker
1,486
Avg Claims per Provider
Gregory Walter, FNP-C's 431 claims are below the specialty average of 1,486.
Nearby Social Worker Providers in North Carolina
Other clinicians with the same primary specialty enrolled in North Carolina, drawn from the same CMS NPPES roster as Walter.
Anna Abbott
Morehead City, NC
Dr. Emily Abernathy
MSW, LCSWA
Charlotte, NC
Dr. Rolanda Abney
LCSW
Monroe, NC
Dr. Amanda Abrams
CLINICAL SOCIAL WORK
Camp Lejeune, NC
Dr. Regan Adair
LMSW
Asheville, NC
Compare Social Worker 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 North Carolina medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Social Worker 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.
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Frequently Asked Questions
What is Gregory Walter, FNP-C's specialty? ▼
Gregory Walter, FNP-C specializes in Social Worker and practices in Rocky Mount, North Carolina. Credentials: FNP-C.
How much does Gregory Walter, FNP-C prescribe under Medicare Part D? ▼
In 2023, Gregory Walter, FNP-C wrote 431 Medicare Part D claims totaling $85K in drug costs for 67 beneficiaries.
Where is Gregory Walter, FNP-C located? ▼
Gregory Walter, FNP-C is located at 300 N GRACE ST, Rocky Mount, NC, 27804. Phone: (252) 210-9856.
What is Gregory Walter, FNP-C's NPI number? ▼
Gregory Walter, FNP-C's National Provider Identifier (NPI) is 1528360450, issued on 11/29/2010.
Does Gregory Walter, FNP-C prescribe more brand-name or generic drugs? ▼
Gregory Walter, FNP-C's prescribing is 21% brand-name and 77% generic drugs by claim count, with $78K in brand drug costs.
Does Gregory Walter, FNP-C prescribe opioids? ▼
Yes, Gregory Walter, FNP-C had 24 opioid claims in 2023 with an opioid prescribing rate of 5.6%.
How many Social Worker providers are there in the US? ▼
There are 140,115 Social Worker providers across 54 states in the US. The average Social Worker provider writes 1,486 Medicare Part D claims per year.
What drugs does Gregory Walter, FNP-C prescribe most often? ▼
Based on 2023 Medicare Part D data, Gregory Walter, FNP-C's most frequently prescribed drugs include Metformin Hcl Er, Ozempic, Atorvastatin Calcium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Gregory Walter, FNP-C accept Medicare? ▼
Gregory Walter, FNP-C appears in CMS Medicare data with 431 Part D claims and 67 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Gregory Walter, FNP-C's credentials? ▼
Gregory Walter, FNP-C's NPI is 1528360450 with credentials FNP-C. 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.