William O. Patterson

  • Kyle, TX
  • Emergency medicine physician
NPI1538666367PAC ID9830589365
Medicare services, 2024
120
Medicare patients, 2024
102
Part D claims, 2024
70
Publications
1
Hospital affiliations
2
Practice address
6001 Kyle Pkwy, Kyle, TX 78640
Practice phone
Call (512) 324-5000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Ascension Seton Hays

Hospital · Kyle, Texas

See all 7 affiliations

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William O. Patterson is an emergency medicine physician in Kyle, Texas

William Patterson practices at Ascension Seton Hays in Kyle, Texas, part of Ascension Health Alliance.

William Patterson's NPI, 1538666367, was assigned on April 9, 2018. William Patterson graduated from University of Miami, Miller School of Medicine in 2018. William Patterson holds Texas license T0889.

NPI and contact details
Medicare PAC ID
9830589365
NPI enumeration date
April 9, 2018
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(512) 324-5000
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
34
Medical school graduation
2018

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

William O. Patterson practices at Ascension Seton Hays in Kyle, Texas

William Patterson's primary practice is Ascension Seton Hays, at 6001 Kyle Pkwy, Kyle, TX 78640 in Hays County. The practice phone is (512) 324-5000.

Source: Dmand AI Affiliation Data

William O. Patterson is affiliated with 3 sites of care and 4 medical groups

William Patterson's primary practice is Ascension Seton Hays in Kyle, Texas, part of Ascension Health Alliance. William Patterson is also affiliated with Ascension Seton Highland Lakes. The medical group on file is Emergency Service Partners, L.P. Dmand AI also links William Patterson to 3 more medical groups and 1 group practice or clinic, each named with a free account.

See all 7 affiliations for William Patterson

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

Dmand AI tracks the EHR system at William O. Patterson's practice

Dmand AI tracks the electronic health record (EHR) system at each site where William Patterson practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Ascension Seton HaysAvailable with a free account
+2 more sites and 3 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

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William O. Patterson is one of 4,831 emergency medicine physicians in Texas

Emergency medicine is William Patterson's primary specialty in the NPI Registry, under taxonomy code 207P00000X. William Patterson is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has William Patterson's licenses on file in 11 states: Texas, Kansas, Montana, Nebraska, Alabama, Colorado, Minnesota, North Dakota, Wisconsin, District of Columbia and Virginia.

Specialties and state licenses

  • Emergency medicine, TexasPrimaryLicense T0889 · 2021 to 2027 · taxonomy 207P00000X
  • Kansas license2022 to 2025
  • Montana license2022 to 2024
  • Nebraska license2022 to 2024
  • Alabama license2023
  • Colorado license2022 to 2023
  • Minnesota license2022 to 2023
  • North Dakota license2022 to 2023
  • Wisconsin license2022 to 2023
  • District of Columbia license2018 to 2021
  • Virginia license2020 to 2021

Emergency medicine physicians near William Patterson

Counts of emergency medicine physicians 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

William O. Patterson billed Medicare for 120 services in 2024

CMS data shows 120 Medicare services from William Patterson across 3 procedure codes in 2024, for 102 Medicare patients. Medicare paid $12,182 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024120
Medicare patients102
Paid by Medicare$12,182
Procedure codes3

William Patterson's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1552024: 9539%
Tests and treatments
2023: 322024: 2522%

William Patterson compared with the Texas median for emergency medicine physicians, 2024

  • William Patterson
  • Texas median
Medicare services
120vs 22547% below
Medicare patients
102vs 20650% below
Part D claims
15vs 7480% below

Medians across 4,588 emergency medicine physicians in Texas with Dmand AI profiles that report each measure.

William Patterson's 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 William Patterson

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

William O. Patterson treated 102 Medicare patients in 2024, average age 77

CMS counts 102 Medicare patients who saw William Patterson in 2024. The largest group is 75 to 84, with 39 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 18% are also on Medicaid. Their average risk score is 2.28, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts William Patterson's median patient age at 62, with 56% women.

Medicare patients, 2024102
Average age77
Average risk score2.28
Also on Medicaid18%

William Patterson's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

William Patterson's Medicare patients by sex, 2024

  • Women5756%
  • Men4544%

Chronic conditions among William Patterson's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis53%
  4. Mood disorders44%
  5. Chronic kidney disease43%
  6. Ischemic heart disease43%
  7. Diabetes42%
  8. Depression40%

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

William Patterson's patients across all payers

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

Patient panel by age, all payers

Median age 62

Patient panel by sex, all payers

  • Women56%
  • Men41%

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

William O. Patterson wrote 70 Medicare Part D claims in 2024

In 2024, William Patterson wrote 70 Medicare Part D claims for 48 patients. 87% of them were for generic drugs. CMS names the drug for 15 of them, across 1 drug with 11 or more claims each, at $61 in total drug cost. In 2022, CMS named 42 claims across 2 drugs.

Part D claims, 202470
Drugs named by CMS1
Total drug cost$61
Part D patients48

William Patterson's Part D claims by kind of drug, 2024

  • Generic61 claims87%
  • Brand-name and other9 claims13%

William Patterson's most prescribed drugs by claims, 2023

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 William Patterson's Part D claims, 2024

  • Antibiotics34%24 of 70 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, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 422023: 1564%

Drugs named by CMS: 1 in 2023, 2 in 2022.

See all prescribing by William Patterson

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

How William O. Patterson takes part in Medicare

William Patterson accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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William O. Patterson has 1 publication on record

Dmand AI links 1 paper to William Patterson in 2020. William Patterson's most frequent co-authors are Rahul Bhat, MD, David J. Carlberg, MD and Alexander Vance Kolkin.

Papers1

William Patterson's most frequent co-authors

Recent publications by William Patterson

See all 1 publications and co-authors

See who William Patterson researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who William Patterson works with, so you can find a warm path to the right emergency medicine physicians.

How network discovery works

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

William O. Patterson graduated from University of Miami, Miller School of Medicine

William Patterson graduated from University of Miami, Miller School of Medicine in 2018.

  1. Medical schoolUniversity of Miami, Miller School of Medicine
  2. Board certified in emergency medicineAmerican Board of Emergency Medicine

Source: Dmand AI Professional Profile Data

William O. Patterson accepts plans from 20 insurance carriers

William Patterson is in network with 20 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

  • United Healthcare
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • Aetna
  • Alliant Health Plans
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • +12 more carriersWith a free account

Plan types William Patterson accepts, by number of carriers

  1. PPO11
  2. HMO9
  3. Medicare5
  4. EPO4
  5. POS4
  6. Medicaid1

Source: Dmand AI Insurance Network Data

Sources for William O. Patterson'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)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
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 William O. Patterson

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

What is William O. Patterson's NPI number?

William O. Patterson's NPI number is 1538666367. It was assigned on April 9, 2018, and it is active in the NPI Registry.

What does William O. Patterson specialize in?

William O. Patterson is an emergency medicine physician in Kyle, Texas. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).

Where does William O. Patterson practice?

William Patterson practices at 6001 Kyle Pkwy, Kyle, TX 78640. William Patterson's primary practice is Ascension Seton Hays in Kyle, Texas, part of Ascension Health Alliance. Dmand AI also links William Patterson to 3 medical groups and 1 group practice or clinic.

What is William O. Patterson's office phone number?

The practice phone on file for William Patterson is (512) 324-5000.

What is William O. Patterson's medical license number?

William Patterson holds Texas license T0889, one of the licenses on file in 11 states.

Which states has William O. Patterson been licensed in?

Dmand AI has state licenses on file for William Patterson in Texas (2021 to 2027), Kansas (2022 to 2025), Montana (2022 to 2024), Nebraska (2022 to 2024), Alabama (2023), Colorado (2022 to 2023), Minnesota (2022 to 2023), North Dakota (2022 to 2023), Wisconsin (2022 to 2023), District of Columbia (2018 to 2021) and Virginia (2020 to 2021).

Which hospitals is William O. Patterson affiliated with?

William Patterson practices at Ascension Seton Hays in Kyle, Texas. William Patterson is also affiliated with Ascension Seton Highland Lakes.

What medical group is William O. Patterson part of?

William Patterson is linked to Emergency Service Partners, L.P. Dmand AI links William Patterson to 3 more medical groups.

Does William O. Patterson accept Medicare?

Yes. CMS data shows William Patterson billed Medicare for 120 services in 2024, and William Patterson accepts Medicare assignment.

How many Medicare patients does William O. Patterson see?

CMS counts 102 Medicare patients who saw William Patterson in 2024, with an average age of 77.

Show 8 more questionsShow fewer questions

Is William O. Patterson board certified?

Yes. William Patterson is board certified in emergency medicine by the American Board of Emergency Medicine.

What services does William O. Patterson bill to Medicare?

In 2024, William Patterson's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and emergency department visit (99284).

Where did William O. Patterson go to medical school?

William Patterson graduated from University of Miami, Miller School of Medicine in 2018.

What drugs does William O. Patterson prescribe most?

In 2023 Medicare Part D data, William Patterson's most prescribed drugs by claims were Hydrocodone-Acetaminophen.

How long has William O. Patterson been practicing?

William Patterson graduated from medical school in 2018, 8 years ago.

Does William O. Patterson do research?

Dmand AI links 1 publication to William Patterson.

Who does William O. Patterson publish with?

William Patterson's most frequent co-authors are Rahul Bhat, MD (1 shared paper), David J. Carlberg, MD (1 shared paper) and Alexander Vance Kolkin (1 shared paper).

What insurance does William O. Patterson accept?

William Patterson is in network with 20 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and Elevance. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.

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