NPI registry status
Active
2026 NPPES data Family Nurse Practitioner NPI 1629853601 NP
Verify on CMS → Crystal Williams, NP
Family Nurse Practitioner in Bamberg, South 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 210,832 in Family 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
46
Medicare Part D claims · 31 beneficiaries · Family Nurse Practitioner avg: 1K
Industry payments
$617.44
39 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Crystal Williams, NP filed 46 Medicare Part D claims in 2023 as a Family Nurse Practitioner in Bamberg, South Carolina.
- 46
- Part D claims, 2023
- $617.44
- 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.
Crystal Williams, NP's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
46 ≥ 0th percentile 0% of 1,370,886 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 · 2023
What does the federal data show about Crystal Williams, NP?
Quality data not reportedPrimary specialty
Family Nurse Practitioner
Medicare Part D claims
46 96% vs specialty avg
Specialty distribution in South Carolina
How Family Nurse Practitioner compares to other specialties among South 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 Family 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).
Crystal Williams, NP appears in the CMS NPPES registry as a Family Nurse Practitioner provider holding NP credentials at 2113 MAIN HWY, Bamberg, SC, 29003, with a listed phone of (803) 245-5168. NPI 1629853601 was issued on 08/29/2023.
Medicare Part D records for calendar year 2023 show 46 prescription claims written by this provider, covering 31 Medicare beneficiaries and totaling roughly $2K in drug spend.
Family Nurse Practitioner is a high-volume specialty nationwide, with 210,832 enrolled providers across 56 states and an average of 1,222 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 | 1629853601 |
|---|---|
| Specialty | Family Nurse Practitioner |
| Credentials | NP |
| Gender | Female |
| NPI Issued | 08/29/2023 |
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 Crystal Williams, NP. Source: openpaymentsdata.cms.gov.
Total received
$617
Largest payer
Lilly USA, 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.
Medicare Part D Prescribing Data
CMS Medicare Part D prescriber-level data for calendar year 2023.
46
Total Claims
$2K
Total Drug Cost
31
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 54
- Total Day Supply
- 854
- Generic Drug Cost
- $420
- Antibiotic Claims
- 20
Patient Demographics
- Average Patient Age
- 65.4 years
- Avg HCC Risk Score
- 0.88
- Age Distribution
- <65: 12, 65-74: N/A, 75-84: N/A, 85+: N/A
Family Nurse Practitioner Overview
How Crystal Williams, NP fits within the Family Nurse Practitioner landscape nationally.
210,832
Family Nurse Practitioner Providers in US
56
States with Family Nurse Practitioner
1,222
Avg Claims per Provider
Crystal Williams, NP's 46 claims are below the specialty average of 1,222.
Nearby Family Nurse Practitioner Providers in South Carolina
Other clinicians with the same primary specialty enrolled in South Carolina, drawn from the same CMS NPPES roster as Williams.
One of 3,844 Family Nurse Practitioner providers enrolled in South Carolina, 5 are shown here.
Dr. Cynthia Abachnou
APRN
Conway, SC
Dr. Vladislav Abaturov
NP
Greer, SC
Dr. Iman Abdul-Ali
NP
Moncks Corner, SC
Dr. Adila Abdul-Karim
FNP-C
Columbia, SC
Dr. Alycia Abdulla
FNP-BC
Camden, SC
Compare Family 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 South Carolina medical board, federal registration is not a license check. Credential verification guide
- Weigh a second option: compare this provider with a nearby Family 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 South Carolina
Frequently Asked Questions
What is Crystal Williams, NP's specialty? ▼
Crystal Williams, NP specializes in Family Nurse Practitioner and practices in Bamberg, South Carolina. Credentials: NP.
How much does Crystal Williams, NP prescribe under Medicare Part D? ▼
In 2023, Crystal Williams, NP wrote 46 Medicare Part D claims totaling $2K in drug costs for 31 beneficiaries.
Where is Crystal Williams, NP located? ▼
Crystal Williams, NP is located at 2113 MAIN HWY, Bamberg, SC, 29003. Phone: (803) 245-5168.
What is Crystal Williams, NP's NPI number? ▼
Crystal Williams, NP's National Provider Identifier (NPI) is 1629853601, issued on 08/29/2023.
How many Family Nurse Practitioner providers are there in the US? ▼
There are 210,832 Family Nurse Practitioner providers across 56 states in the US. The average Family Nurse Practitioner provider writes 1,222 Medicare Part D claims per year.
Does Crystal Williams, NP accept Medicare? ▼
Crystal Williams, NP appears in CMS Medicare data with 46 Part D claims and 31 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Crystal Williams, NP's credentials? ▼
Crystal Williams, NP's NPI is 1629853601 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
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.