2026 NPPES data Family Medicine Physician NPI 1679530505 M.D.
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STEPHEN WILLIAMS, M.D.

Family Medicine Physician in OMAHA, Nebraska. 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
10K
Medicare Part D claims · 509 beneficiaries · Family Medicine Physician avg: 3K
Generic prescribing
92%
generic claims · 8% brand-name · higher generic rates reduce patient out-of-pocket costs
MIPS score
95.6164/100
▲ 13 pts above national avg 83.1 · [object Object]
Industry payments
$19.23
1 payments · CMS Open Payments (Sunshine Act)

What the federal data shows

STEPHEN WILLIAMS, M.D. reported a CMS MIPS final score of 95.6164/100 — above the 83.1 national average — and filed 9,898 Medicare Part D claims in 2023.

95.6164/100
MIPS score · +13 vs avg
10K
Part D claims, 2023
92%
generic prescribing
Likely
board-certified (heuristic)

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.

STEPHEN WILLIAMS, M.D.'s MIPS score vs every scored U.S. clinician

CMS Merit-based Incentive Payment System (MIPS) final score, 2023 — the federal quality measure

96 Top 21% higher than 79% of 477,587 scored providers

0–10: 8,684 scored providers (2%). Below this entry. 10–20: 3,008 scored providers (1%). Below this entry. 20–30: 3,069 scored providers (1%). Below this entry. 30–40: 2,746 scored providers (1%). Below this entry. 40–50: 2,928 scored providers (1%). Below this entry. 50–60: 5,882 scored providers (1%). Below this entry. 60–70: 13,906 scored providers (3%). Below this entry. 70–80: 118,074 scored providers (25%). Below this entry. 80–90: 129,887 scored providers (27%). Below this entry. 90–100: 189,403 scored providers (40%). This entry sits in this band. This provider 0 100 every MIPS-scored clinician, bucketed by value

Each bar is a band; taller bars hold more scored providers. 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 Merit-based Incentive Payment System (MIPS) · 2023

Board certification likely (heuristic — not verified)

STEPHEN WILLIAMS, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

What does the federal data show about STEPHEN WILLIAMS, M.D.?

High performer (top quartile)

NPI registry status

Active

Issued 04/26/2006

NPI 1679530505

Primary specialty

Family Medicine Physician

High-volume

147,640 US NPIs in this specialty

Medicare Part D claims

9,898 190% vs specialty avg

2023 prescription claims

Specialty avg: 3,418

MIPS final score

95.6164/100 12.516400000000004% pts

Exceptional band

vs 83.1 national avg

Specialty distribution in Nebraska

How Family Medicine Physician compares to other specialties among Nebraska providers

Nebraska providers

Family Medicine Physician share within Nebraska

1. Family Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Family Medicine Physician share within Nebraska

Medicare quality performance — MIPS

STEPHEN WILLIAMS, M.D.'s 2023 MIPS final score plotted against the Family Medicine Physician national average

High performer (top quartile)
MIPS Final Score
95.6164/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Family Medicine Physician) — 95.6164/100 vs national avg 83.1

0%100%National avg83%95.6%
MIPS final score (Family Medicine Physician) — 95.6164/100 vs national avg 83.1

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).

STEPHEN WILLIAMS, M.D. appears in the CMS NPPES registry as a Family Medicine Physician provider holding M.D. credentials at 9015 ARBOR ST, OMAHA, NE, 68124, with a listed phone of (402) 391-6623. NPI 1679530505 was issued on 04/26/2006. 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 9,898 prescription claims written by this provider, covering 509 Medicare beneficiaries and totaling roughly $615K in drug spend, split 8% brand-name and 92% generic by claim count, with an opioid prescribing rate of 2.6%. 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. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 95.6164/100 for the 2023 performance year (Quality 93.135), compared with the national average of 83.1.

Family Medicine Physician is a high-volume specialty nationwide, with 147,640 enrolled providers across 56 states and an average of 3,418 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

9015 ARBOR ST
OMAHA, NE 68124

Provider Details

NPI 1679530505
Specialty Family Medicine Physician
Credentials M.D.
Gender Male
NPI Issued 04/26/2006

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

95.6164
Final Score
Avg: 83.1
93.135
Quality
96.8298
Promoting Interoperability

Reporting: Alternative Payment Model

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 STEPHEN WILLIAMS, M.D.. Source: openpaymentsdata.cms.gov.

Total received

$19

Largest payer

Philips North America 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 · Generic-heavy

STEPHEN WILLIAMS, M.D. — brand share 8.0%
Specialty average (est.)

8% brand-name claims vs 92% generic, on 9,898 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.

9,898
Total Claims
$615K
Total Drug Cost
509
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
19,565
Total Day Supply
563,642
Brand vs Generic
8% brand / 92% generic
Brand Drug Cost
$415K
Generic Drug Cost
$198K
Opioid Claims
262 (2.6% rate)
Antibiotic Claims
464

Patient Demographics

Average Patient Age
73.6 years
Avg HCC Risk Score
1.04
Gender Split
48% female / 52% male
Age Distribution
<65: 31, 65-74: 264, 75-84: 147, 85+: 67

Top Prescribed Drugs (Medicare Part D)

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

What STEPHEN WILLIAMS, M.D. prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Atorvastatin Calcium
671
Amlodipine Besylate
349
Metoprolol Succinate
312
Levothyroxine Sodium
275
Meloxicam
227
Simvastatin
226
Alprazolam
218
Omeprazole
210
Prednisone
189
Pantoprazole Sodium
185

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Family Medicine Physician Overview

How STEPHEN WILLIAMS, M.D. fits within the Family Medicine Physician landscape nationally.

147,640
Family Medicine Physician Providers in US
56
States with Family Medicine Physician
3,418
Avg Claims per Provider

STEPHEN WILLIAMS, M.D.'s 9,898 claims are above the specialty average of 3,418.

Nearby Family Medicine Physician Providers in Nebraska

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

Compare Family Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is STEPHEN WILLIAMS, M.D.'s specialty?
STEPHEN WILLIAMS, M.D. specializes in Family Medicine Physician and practices in OMAHA, Nebraska. Credentials: M.D..
How much does STEPHEN WILLIAMS, M.D. prescribe under Medicare Part D?
In 2023, STEPHEN WILLIAMS, M.D. wrote 9,898 Medicare Part D claims totaling $615K in drug costs for 509 beneficiaries.
What is STEPHEN WILLIAMS, M.D.'s Medicare quality score?
STEPHEN WILLIAMS, M.D. has a CMS MIPS Final Score of 95.6164/100 (Quality: 93.135). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is STEPHEN WILLIAMS, M.D. located?
STEPHEN WILLIAMS, M.D. is located at 9015 ARBOR ST, OMAHA, NE, 68124. Phone: (402) 391-6623.
What is STEPHEN WILLIAMS, M.D.'s NPI number?
STEPHEN WILLIAMS, M.D.'s National Provider Identifier (NPI) is 1679530505, issued on 04/26/2006.
Does STEPHEN WILLIAMS, M.D. prescribe more brand-name or generic drugs?
STEPHEN WILLIAMS, M.D.'s prescribing is 8% brand-name and 92% generic drugs by claim count, with $415K in brand drug costs.
Does STEPHEN WILLIAMS, M.D. prescribe opioids?
Yes, STEPHEN WILLIAMS, M.D. had 262 opioid claims in 2023 with an opioid prescribing rate of 2.6%.
How many Family Medicine Physician providers are there in the US?
There are 147,640 Family Medicine Physician providers across 56 states in the US. The average Family Medicine Physician provider writes 3,418 Medicare Part D claims per year.
What drugs does STEPHEN WILLIAMS, M.D. prescribe most often?
Based on 2023 Medicare Part D data, STEPHEN WILLIAMS, M.D.'s most frequently prescribed drugs include Atorvastatin Calcium, Amlodipine Besylate, Metoprolol Succinate. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does STEPHEN WILLIAMS, M.D. accept Medicare?
STEPHEN WILLIAMS, M.D. appears in CMS Medicare data with 9,898 Part D claims and 509 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify STEPHEN WILLIAMS, M.D.'s credentials?
STEPHEN WILLIAMS, M.D.'s NPI is 1679530505 with credentials M.D.. 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.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
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