2026 NPPES data Primary Care Nurse Practitioner NPI 1588158877
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SAMANTHA WILLIAMS

Primary Care Nurse Practitioner in BIRMINGHAM, Alabama. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
3K
Medicare Part D claims · 510 beneficiaries · Primary Care Nurse Practitioner avg: 1K
Generic prescribing
82%
generic claims · 18% brand-name · higher generic rates reduce patient out-of-pocket costs
Industry payments
$1.1K
63 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: SAMANTHA WILLIAMS is a Primary Care Nurse Practitioner ([object Object]) practicing in BIRMINGHAM, Alabama with a Medicare Part D prescribing footprint of 3K claims across 510 beneficiaries — 18% brand-name prescribing . Industry payments of $1.1K across 63 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: SAMANTHA WILLIAMS filed 2,847 Medicare Part D claims in 2023 across BIRMINGHAM, Alabama. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

SAMANTHA WILLIAMS at a glance

Quality data not reported

NPI registry status

Active

Issued 06/19/2018

NPI 1588158877

Primary specialty

Primary Care Nurse Practitioner

Mid-sized

10,138 US NPIs in this specialty

Medicare Part D claims

2,847 109% vs specialty avg

2023 prescription claims

Specialty avg: 1,363

Specialty distribution in Alabama

How Primary Care Nurse Practitioner compares to other specialties among Alabama providers

Alabama providers

Primary Care Nurse Practitioner share within Alabama

1. Primary Care Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Primary Care Nurse Practitioner share within Alabama

Specialty board-certification context

Estimated specialty board-certified rate — Primary Care Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Primary Care Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Primary Care Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Primary Care Nurse Practitioner) — ABMS / AOA estimate

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).

SAMANTHA WILLIAMS is a Primary Care Nurse Practitioner provider practicing in BIRMINGHAM, Alabama, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1588158877. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

SAMANTHA WILLIAMS appears in the CMS NPPES registry as a Primary Care Nurse Practitioner provider at 832 PRINCETON AVE SW, BIRMINGHAM, AL, 35211, with a listed phone of (205) 206-8475. NPI 1588158877 was issued on 06/19/2018. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what WILLIAMS most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 2,847 prescription claims written by this provider, covering 510 Medicare beneficiaries and totaling roughly $506K in drug spend, split 18% brand-name and 82% generic by claim count. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Primary Care Nurse Practitioner is a mid-sized specialty nationwide, with 10,138 enrolled providers across 54 states and an average of 1,363 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

832 PRINCETON AVE SW
BIRMINGHAM, AL 35211

Provider Details

NPI 1588158877
Specialty Primary Care Nurse Practitioner
Gender Female
NPI Issued 06/19/2018

Hospital and facility affiliations

Facilities where SAMANTHA WILLIAMS 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.

BIRMINGHAM INTERNAL MEDICINE ASSOCIATES, LLC
HOOVER, AL

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

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 SAMANTHA WILLIAMS. Source: openpaymentsdata.cms.gov.

Total received

$1.1K

Largest payer

Novo Nordisk Inc

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

SAMANTHA WILLIAMS — brand share 18.0%
Specialty average (est.)

18% brand-name claims vs 82% generic, on 2,847 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.

2,847
Total Claims
$506K
Total Drug Cost
510
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
6,504
Total Day Supply
188,264
Brand vs Generic
18% brand / 82% generic
Brand Drug Cost
$455K
Generic Drug Cost
$50K
Antibiotic Claims
68

Patient Demographics

Average Patient Age
70.7 years
Avg HCC Risk Score
1.79
Gender Split
71% female / 29% male
Age Distribution
<65: 117, 65-74: 214, 75-84: 122, 85+: 57

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

Drug Claims
Atorvastatin Calcium
201
Amlodipine Besylate
166
Levothyroxine Sodium
74
Hydrochlorothiazide
68
Albuterol Sulfate Hfa
Albuterol Sulfate
65
Trulicity
Dulaglutide
63
Pantoprazole Sodium
62
Potassium Chloride
57
Carvedilol
56
Losartan Potassium
55

* 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 SAMANTHA WILLIAMS fits within the Primary Care Nurse Practitioner landscape nationally.

10,138
Primary Care Nurse Practitioner Providers in US
54
States with Primary Care Nurse Practitioner
1,363
Avg Claims per Provider

SAMANTHA WILLIAMS's 2,847 claims are above the specialty average of 1,363.

Nearby Primary Care Nurse Practitioner Providers in Alabama

Other clinicians with the same primary specialty enrolled in Alabama, drawn from the same CMS NPPES roster as WILLIAMS.

Compare Primary Care Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is SAMANTHA WILLIAMS's specialty?
SAMANTHA WILLIAMS specializes in Primary Care Nurse Practitioner and practices in BIRMINGHAM, Alabama.
How much does SAMANTHA WILLIAMS prescribe under Medicare Part D?
In 2023, SAMANTHA WILLIAMS wrote 2,847 Medicare Part D claims totaling $506K in drug costs for 510 beneficiaries.
Where is SAMANTHA WILLIAMS located?
SAMANTHA WILLIAMS is located at 832 PRINCETON AVE SW, BIRMINGHAM, AL, 35211. Phone: (205) 206-8475.
What is SAMANTHA WILLIAMS's NPI number?
SAMANTHA WILLIAMS's National Provider Identifier (NPI) is 1588158877, issued on 06/19/2018.
Does SAMANTHA WILLIAMS prescribe more brand-name or generic drugs?
SAMANTHA WILLIAMS's prescribing is 18% brand-name and 82% generic drugs by claim count, with $455K in brand drug costs.
How many Primary Care Nurse Practitioner providers are there in the US?
There are 10,138 Primary Care Nurse Practitioner providers across 54 states in the US. The average Primary Care Nurse Practitioner provider writes 1,363 Medicare Part D claims per year.
What drugs does SAMANTHA WILLIAMS prescribe most often?
Based on 2023 Medicare Part D data, SAMANTHA WILLIAMS's most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Levothyroxine Sodium. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does SAMANTHA WILLIAMS accept Medicare?
SAMANTHA WILLIAMS appears in CMS Medicare data with 2,847 Part D claims and 510 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify SAMANTHA WILLIAMS's credentials?
SAMANTHA WILLIAMS's NPI is 1588158877. 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

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