Dr. Stephen G. Williams, MD

  • Glenwood Springs, CO
  • Urologist
NPI1093886079PAC ID8426189663
Medicare services, 2024
920
Medicare patients, 2024
301
Part D claims, 2024
339
Publications
1
Clinical trials
1
Practice address
1906 Blake Ave, Glenwood Springs, CO 81601
Practice phone
Call (970) 945-6535
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

Valley View Hospital

Hospital · Glenwood Springs, Colorado

See all 7 affiliations

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Dr. Stephen G. Williams is a urologist in Glenwood Springs, Colorado

Dr. Williams practices at Valley View Hospital in Glenwood Springs, Colorado, part of Valley View Hospital Association.

Dr. Williams' NPI, 1093886079, was assigned on November 13, 2006. Dr. Williams graduated from Loyola University Chicago Stritch School of Medicine in 1993. Dr. Williams holds California license G79866.

NPI and contact details
Medicare PAC ID
8426189663
NPI enumeration date
November 13, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(970) 945-6535
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
59
Medical school graduation
1993

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Stephen G. Williams practices at Valley View Hospital in Glenwood Springs, Colorado

Dr. Williams' primary practice is Valley View Hospital, at 1906 Blake Ave, Glenwood Springs, CO 81601 in Garfield County. The practice phone is (970) 945-6535.

  • Valley View Hospital
    1906 Blake Ave, Glenwood Springs, CO 81601 · Garfield CountyPhone(970) 945-6535

Source: Dmand AI Affiliation Data

Dr. Stephen G. Williams is affiliated with 5 sites of care and 2 medical groups

Dr. Williams' primary practice is Valley View Hospital in Glenwood Springs, Colorado, part of Valley View Hospital Association. Dr. Williams is also affiliated with St. Mary's Regional Hospital. The medical group on file is ValleyOrtho - Aspen. Dmand AI also links Dr. Williams to 2 more hospitals, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 7 affiliations for Dr. Williams

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Stephen G. Williams' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 5 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Valley View HospitalAvailable with a free account
+4 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Stephen G. Williams is one of 203 urologists in Colorado

Urology is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Williams is board certified in urology by the American Board of Urology. Dmand AI has Dr. Williams' licenses on file in 2 states: California and Colorado.

Specialties and state licenses

  • Urology, CaliforniaPrimaryLicense G79866 · 1994 to 2026 · taxonomy 208800000X
  • Colorado license2023 to 2027

Clinical focus

Dmand AI lists enlarged prostate, kidney stone disease, urinary endoscopy and UTI among the conditions Dr. Williams treats.

Urologists near Dr. Williams

Counts of urologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Stephen G. Williams billed Medicare for 920 services in 2024

CMS data shows 920 Medicare services from Dr. Williams across 15 procedure codes in 2024, for 301 Medicare patients. Medicare paid $71,379 for them.

Medicare services, 2024920
Medicare patients301
Paid by Medicare$71,379
Procedure codes15

Dr. Williams' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1282024: 494286%
Surgery
2023: 722024: 323349%
Lab and pathology
2023: 572024: 6819%
Imaging
2023: 02024: 35

Where Dr. Williams' Medicare services took place, 2024

  • In an office78185%
  • In a facility13915%

Dr. Williams compared with the Colorado median for urologists, 2024

  • Dr. Williams
  • Colorado median
Medicare services
920vs 1,49939% below
Medicare patients
301vs 38923% below
Part D claims
266vs 64859% below

Medians across 194 urologists in Colorado with Dmand AI profiles that report each measure.

Dr. Williams' most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Williams

Need commercial claims for Dr. Williams?

Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Williams and other urologists in Colorado.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Stephen G. Williams treated 301 Medicare patients in 2024, average age 75

CMS counts 301 Medicare patients who saw Dr. Williams in 2024. The largest group is 65 to 74, with 150 patients. 64% of them have high cholesterol, and 55% have high blood pressure. 8% are also on Medicaid. Their average risk score is 0.99, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 74, with 16% women.

Medicare patients, 2024301
Average age75
Average risk score0.99
Also on Medicaid8%

Dr. Williams' Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Williams' Medicare patients by sex, 2024

  • Women5518%
  • Men24682%

Chronic conditions among Dr. Williams' Medicare patients, 2024

  1. High cholesterol64%
  2. High blood pressure55%
  3. Arthritis45%
  4. Cancer32%
  5. Ischemic heart disease22%
  6. Anxiety17%
  7. Mood disorders17%
  8. Diabetes16%

Share of Medicare patients with each condition. A patient can have several.

Dr. Williams' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 74

Patient panel by sex, all payers

  • Women16%
  • Men84%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Stephen G. Williams wrote 339 Medicare Part D claims in 2024

In 2024, Dr. Williams wrote 339 Medicare Part D claims for 148 patients. 95% of them were for generic drugs. CMS names the drug for 266 of them, across 7 drugs with 11 or more claims each, at $14,041 in total drug cost. In 2023, CMS named 362 claims across 6 drugs.

Part D claims, 2024339
Drugs named by CMS7
Total drug cost$14,041
Part D patients148

Dr. Williams' Part D claims by kind of drug, 2024

  • Generic321 claims95%
  • Brand-name18 claims5%

Dr. Williams' most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Williams' Part D claims, 2024

  • Opioids4%13 of 339 claims
  • Antibiotics16%53 of 339 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 3622024: 26627%

Drugs named by CMS: 7 in 2024, 6 in 2023.

See all prescribing by Dr. Williams

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. Stephen G. Williams scored 95 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 95 out of 100 for Dr. Williams for performance year 2024, reported through an alternative payment model (APM). Dr. Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Williams as offering telehealth. CMS counts 13 procedures of prostate resection by Dr. Williams, more than 67% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Williams' MIPS scores, performance year 2024

  • 95of 100Final score
  • 86.9of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Williams ranks in Medicare procedure volume

Prostate resection
67th percentile13 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. Stephen G. Williams has 1 publication on record

Dmand AI links 1 paper to Dr. Williams in 2019. Dr. Williams' most frequent co-authors are Philip Hyunwoo Kim, MD and Ronald K. Loo, MD.

Papers1

Dr. Williams' most frequent co-authors

Recent publications by Dr. Williams

See all 1 publications and co-authors

See who Dr. Williams researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Williams works with, so you can find a warm path to the right urologists.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Stephen G. Williams has worked on 1 clinical trial

Dmand AI links Dr. Williams to 1 clinical trial. Conditions studied include Prostatic Neoplasms and Prostatic Diseases.

Conditions in Dr. Williams' trials

  • Prostatic Neoplasms
  • Prostatic Diseases

Investigators on the most trials with Dr. Williams

Recent clinical trials with Dr. Williams

Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)

Dr. Stephen G. Williams received $1,463 in industry payments from 2016 to 2025

CMS Open Payments shows 27 general payments to Dr. Williams from 18 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Boston Scientific Corporation paid the most, $528.

General payments to Dr. Williams by program year, 2016 to 2025

Companies that paid Dr. Williams the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Williams

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Stephen G. Williams has 1 award and honors on record

Dmand AI lists 1 award for Dr. Williams, most recently CMS Stage 1 2012 in 2011.

Awards and honors for Dr. Williams

  1. 2011
    • CMS Stage 1 2012

Source: Dmand AI Professional Profile Data

Dr. Stephen G. Williams graduated from Loyola University Chicago Stritch School of Medicine

Dr. Williams graduated from Loyola University Chicago Stritch School of Medicine in 1993.

  1. Medical schoolLoyola University Chicago Stritch School of Medicine
  2. Board certified in urologyAmerican Board of Urology

Source: Dmand AI Professional Profile Data

Dr. Stephen G. Williams accepts plans from 14 insurance carriers

Dr. Williams is in network with 14 carriers, including United Healthcare, Aetna and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

  • United Healthcare
  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • HCSC
  • Aspirus Health Plan
  • Blue Cross Blue Shield of Massachusetts
  • Regence Health Plans
  • +6 more carriersWith a free account

Plan types Dr. Williams accepts, by number of carriers

  1. PPO9
  2. HMO7
  3. Medicare6
  4. EPO4
  5. POS3
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for Dr. Stephen G. Williams's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Clinical trials and co-investigatorsDmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Awards and committee rolesDmand AI Professional Profile Data
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Stephen G. Williams

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Stephen G. Williams' NPI number?

Dr. Stephen G. Williams' NPI number is 1093886079. It was assigned on November 13, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Stephen G. Williams?

Dr. Stephen G. Williams is a urologist in Glenwood Springs, Colorado. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).

Where does Dr. Stephen G. Williams practice?

Dr. Williams practices at 1906 Blake Ave, Glenwood Springs, CO 81601. Dr. Williams' primary practice is Valley View Hospital in Glenwood Springs, Colorado, part of Valley View Hospital Association. Dmand AI also links Dr. Williams to 2 hospitals, 1 group practice or clinic and 1 medical group.

What is Dr. Stephen G. Williams' office phone number?

The practice phone on file for Dr. Williams is (970) 945-6535.

What is Dr. Stephen G. Williams' medical license number?

Dr. Williams holds California license G79866, one of the licenses on file in 2 states.

Which states has Dr. Stephen G. Williams been licensed in?

Dmand AI has state licenses on file for Dr. Williams in California (1994 to 2026) and Colorado (2023 to 2027).

Which hospitals is Dr. Stephen G. Williams affiliated with?

Dr. Williams practices at Valley View Hospital in Glenwood Springs, Colorado. Dr. Williams is also affiliated with St. Mary's Regional Hospital. Dmand AI links Dr. Williams to 2 more hospitals.

What medical group is Dr. Stephen G. Williams part of?

Dr. Williams is linked to ValleyOrtho - Aspen. Dmand AI links Dr. Williams to 1 more medical group.

Does Dr. Stephen G. Williams accept Medicare?

Yes. CMS data shows Dr. Williams billed Medicare for 920 services in 2024, and Dr. Williams accepts Medicare assignment.

Does Dr. Stephen G. Williams offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Williams as offering telehealth services.

Show 11 more questionsShow fewer questions

What is Dr. Stephen G. Williams' MIPS score?

Dr. Williams' MIPS final score for performance year 2024 is 95 out of 100, reported through an alternative payment model (APM).

How many Medicare patients does Dr. Stephen G. Williams see?

CMS counts 301 Medicare patients who saw Dr. Williams in 2024, with an average age of 75.

Is Dr. Stephen G. Williams board certified?

Yes. Dr. Williams is board certified in urology by the American Board of Urology.

What services does Dr. Stephen G. Williams bill to Medicare?

In 2024, Dr. Williams' most billed Medicare services were office visit, established patient (99214), surgery: urinary system (51798) and office visit, established patient (99215).

Where did Dr. Stephen G. Williams go to medical school?

Dr. Williams graduated from Loyola University Chicago Stritch School of Medicine in 1993.

What drugs does Dr. Stephen G. Williams prescribe most?

In 2024 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Tamsulosin HCl, Finasteride and Alfuzosin HCl ER.

Has Dr. Stephen G. Williams received payments from drug or device companies?

CMS Open Payments shows $1,463 in general payments to Dr. Williams from 18 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.

How long has Dr. Stephen G. Williams been practicing?

Dr. Williams graduated from medical school in 1993, 33 years ago.

Does Dr. Stephen G. Williams do research?

Dmand AI links 1 publication to Dr. Williams. Dr. Williams has worked on 1 clinical trial.

Who does Dr. Stephen G. Williams publish with?

Dr. Williams' most frequent co-authors are Philip Hyunwoo Kim, MD (1 shared paper) and Ronald K. Loo, MD (1 shared paper).

What insurance does Dr. Stephen G. Williams accept?

Dr. Williams is in network with 14 carriers, including United Healthcare, Aetna and Blue Cross Blue Shield of Michigan. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.

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