Dr. Stephen Wayne Hosea, MD

  • Santa Barbara, CA
  • Infectious disease specialist
NPI1457411050PAC ID8426039546
Medicare services, 2024
1,187
Medicare patients, 2024
438
Part D claims, 2024
682
Publications
21
Hospital affiliations
4
Practice address
400 West Pueblo, Santa Barbara, CA 93105
Practice phone
Call (805) 682-7111
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Santa Barbara Cottage Hospital

Hospital · Santa Barbara, California

See all 7 affiliations

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Dr. Stephen Wayne Hosea is an infectious disease specialist in Santa Barbara, California

Dr. Hosea practices at Santa Barbara Cottage Hospital in Santa Barbara, California, part of Cottage Health.

Dr. Hosea's NPI, 1457411050, was assigned on December 12, 2006. Dr. Hosea graduated from Harvard Medical School in 1973. Dr. Hosea holds California license G45763.

NPI and contact details
Medicare PAC ID
8426039546
NPI enumeration date
December 12, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(805) 682-7111
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
79
Medical school graduation
1973

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

Dr. Stephen Wayne Hosea practices at Santa Barbara Cottage Hospital in Santa Barbara, California

Dr. Hosea's primary practice is Santa Barbara Cottage Hospital, at 400 West Pueblo, Santa Barbara, CA 93105 in Santa Barbara County. The practice phone is (805) 682-7111.

Source: Dmand AI Affiliation Data

Dr. Stephen Wayne Hosea is affiliated with 5 sites of care and 2 medical groups

Dr. Hosea's primary practice is Santa Barbara Cottage Hospital in Santa Barbara, California, part of Cottage Health. Dr. Hosea is also affiliated with Goleta Valley Cottage Hospital. The medical group on file is Sansum Clinic. Dmand AI also links Dr. Hosea to 2 more hospitals, 1 urgent care center and 1 medical group, each named with a free account.

See all 7 affiliations for Dr. Hosea

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

Dmand AI tracks the EHR system at Dr. Stephen Wayne Hosea's practice

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

EHR by site
SiteEHR vendor and product
Santa Barbara Cottage HospitalAvailable with a free account
+4 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Stephen Wayne Hosea is one of 1,054 infectious disease specialists in California

Infectious disease is Dr. Hosea's primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dmand AI has Dr. Hosea's licenses on file in 2 states: California and Florida.

Specialties and state licenses

  • Infectious disease, CaliforniaPrimaryLicense G45763 · 1981 to 2027 · taxonomy 207RI0200X
  • Florida license2014 to 2021

Clinical focus

Dmand AI lists acute skin infection, cellulitis, endocarditis, gastrointestinal infection, hiv/aids, joint or bone infection, pneumonia and respiratory infection and sepsis among the conditions Dr. Hosea treats.

Infectious disease specialists near Dr. Hosea

Counts of infectious disease specialists 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 Wayne Hosea billed Medicare for 1,187 services in 2024

CMS data shows 1,187 Medicare services from Dr. Hosea across 6 procedure codes in 2024, for 438 Medicare patients. Medicare paid $95,375 for them.

Medicare services, 20241,187
Medicare patients438
Paid by Medicare$95,375
Procedure codes6

Dr. Hosea's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1,1942024: 1,1871%

Where Dr. Hosea's Medicare services took place, 2024

  • In an office706%
  • In a facility1,11794%

Dr. Hosea compared with the California median for infectious disease specialists, 2024

  • Dr. Hosea
  • California median
Medicare services
1,187vs 4292.8 times
Medicare patients
438vs 1802.4 times
Part D claims
531vs 1194.5 times

Medians across 930 infectious disease specialists in California with Dmand AI profiles that report each measure.

Dr. Hosea'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 Dr. Hosea

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

Dr. Stephen Wayne Hosea treated 438 Medicare patients in 2024, average age 72

CMS counts 438 Medicare patients who saw Dr. Hosea in 2024. The largest group is 65 to 74, with 186 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 70% are also on Medicaid. Their average risk score is 2.67, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Hosea's median patient age at 65, with 43% women.

Medicare patients, 2024438
Average age72
Average risk score2.67
Also on Medicaid70%

Dr. Hosea's Medicare patients by age, 2024

Dr. Hosea's Medicare patients by sex, 2024

  • Women21750%
  • Men22150%

Chronic conditions among Dr. Hosea's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol72%
  3. Arthritis52%
  4. Diabetes50%
  5. Chronic kidney disease46%
  6. Heart failure40%
  7. Mood disorders39%
  8. Anxiety38%

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

Dr. Hosea's patients across all payers

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

Patient panel by age, all payers

Median age 65

Patient panel by sex, all payers

  • Women43%
  • Men56%

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

Dr. Stephen Wayne Hosea wrote 682 Medicare Part D claims in 2024

In 2024, Dr. Hosea wrote 682 Medicare Part D claims for 71 patients. 64% of them were for generic drugs. CMS names the drug for 531 of them, across 22 drugs with 11 or more claims each, at $846,628 in total drug cost. In 2023, CMS named 546 claims across 24 drugs.

Part D claims, 2024682
Drugs named by CMS22
Total drug cost$846,628
Part D patients71

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

  • Generic434 claims64%
  • Brand-name and other248 claims36%

Dr. Hosea's 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. Hosea's Part D claims, 2024

  • Opioids3%20 of 682 claims
  • Antibiotics30%203 of 682 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: 5462024: 5313%

Drugs named by CMS: 22 in 2024, 24 in 2023.

See all prescribing by Dr. Hosea

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 Dr. Stephen Wayne Hosea takes part in Medicare

Dr. Hosea 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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Dr. Stephen Wayne Hosea has 21 publications on record

Dmand AI links 21 papers to Dr. Hosea in 2018. The most frequent topics are Guinea Pigs, Complement System Proteins and Streptococcus pneumoniae. Dr. Hosea has published most often in J Clin Invest. Dr. Hosea's most frequent co-authors are Melvin N. Berger, MD, Nicholas Richard Binder, MD and Kevin M. Casey, MD.

Papers21

Topics Dr. Hosea writes about most

  • Guinea Pigs
  • Complement System Proteins
  • Streptococcus pneumoniae
  • Antibodies, Bacterial
  • Liver
  • Sepsis
  • Angioedema
  • Complement C4

Dr. Hosea's most frequent co-authors

Recent publications by Dr. Hosea

See all 21 publications and co-authors

See who Dr. Hosea researches with

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

How network discovery works

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

Dr. Stephen Wayne Hosea received $1,720 in industry payments from 2016 to 2025

CMS Open Payments shows 28 general payments to Dr. Hosea from 10 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 96% of the total. Takeda Pharmaceuticals U.S.A., Inc. paid the most, $330.

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

General payments to Dr. Hosea by kind, 2016 to 2025

$1.7Kin total
  • Food and beverage$1,65096%
  • Education$704%

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

Share is of all general payments to this clinician.

See all payments to Dr. Hosea

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

Dr. Stephen Wayne Hosea graduated from Harvard Medical School

Dr. Hosea graduated from Harvard Medical School in 1973. Dr. Hosea is a member of ACP.

  1. Medical schoolHarvard Medical School

Source: Dmand AI Professional Profile Data

Dr. Stephen Wayne Hosea accepts plans from 7 insurance carriers

Dr. Hosea is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

  • Aetna
  • Blue Cross Blue Shield of Michigan
  • Elevance
  • Blue Cross Blue Shield of Massachusetts
  • HCSC
  • Regence Health Plans
  • CMS Medicare

Plan types Dr. Hosea accepts, by number of carriers

  1. Medicare7
  2. PPO6
  3. HMO3
  4. EPO2
  5. POS2

Source: Dmand AI Insurance Network Data

Sources for Dr. Stephen Wayne Hosea'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
Industry paymentsOpen Payments (CMS) (opens in a new tab)
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 Wayne Hosea

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 Wayne Hosea's NPI number?

Dr. Stephen Wayne Hosea's NPI number is 1457411050. It was assigned on December 12, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Stephen Wayne Hosea?

Dr. Stephen Wayne Hosea is an infectious disease specialist in Santa Barbara, California. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).

Where does Dr. Stephen Wayne Hosea practice?

Dr. Hosea practices at 400 West Pueblo, Santa Barbara, CA 93105. Dr. Hosea's primary practice is Santa Barbara Cottage Hospital in Santa Barbara, California, part of Cottage Health. Dmand AI also links Dr. Hosea to 2 hospitals, 1 urgent care center and 1 medical group.

What is Dr. Stephen Wayne Hosea's office phone number?

The practice phone on file for Dr. Hosea is (805) 682-7111.

What is Dr. Stephen Wayne Hosea's medical license number?

Dr. Hosea holds California license G45763, one of the licenses on file in 2 states.

Which states has Dr. Stephen Wayne Hosea been licensed in?

Dmand AI has state licenses on file for Dr. Hosea in California (1981 to 2027) and Florida (2014 to 2021).

Which hospitals is Dr. Stephen Wayne Hosea affiliated with?

Dr. Hosea practices at Santa Barbara Cottage Hospital in Santa Barbara, California. Dr. Hosea is also affiliated with Goleta Valley Cottage Hospital. Dmand AI links Dr. Hosea to 2 more hospitals.

What medical group is Dr. Stephen Wayne Hosea part of?

Dr. Hosea is linked to Sansum Clinic. Dmand AI links Dr. Hosea to 1 more medical group.

Does Dr. Stephen Wayne Hosea accept Medicare?

Yes. CMS data shows Dr. Hosea billed Medicare for 1,187 services in 2024, and Dr. Hosea accepts Medicare assignment.

How many Medicare patients does Dr. Stephen Wayne Hosea see?

CMS counts 438 Medicare patients who saw Dr. Hosea in 2024, with an average age of 72.

Show 8 more questionsShow fewer questions

What services does Dr. Stephen Wayne Hosea bill to Medicare?

In 2024, Dr. Hosea's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99222) and hospital inpatient care (99238).

Where did Dr. Stephen Wayne Hosea go to medical school?

Dr. Hosea graduated from Harvard Medical School in 1973.

What drugs does Dr. Stephen Wayne Hosea prescribe most?

In 2024 Medicare Part D data, Dr. Hosea's most prescribed drugs by claims were Juluca, Amoxicillin-Clavulanate Potass and Genvoya.

Has Dr. Stephen Wayne Hosea received payments from drug or device companies?

CMS Open Payments shows $1,720 in general payments to Dr. Hosea from 10 companies from 2016 to 2025. The largest total came from Takeda Pharmaceuticals U.S.A., Inc.

How long has Dr. Stephen Wayne Hosea been practicing?

Dr. Hosea graduated from medical school in 1973, 53 years ago.

Does Dr. Stephen Wayne Hosea do research?

Dmand AI links 21 publications to Dr. Hosea.

Who does Dr. Stephen Wayne Hosea publish with?

Dr. Hosea's most frequent co-authors are Melvin N. Berger, MD (1 shared paper), Nicholas Richard Binder, MD (1 shared paper) and Kevin M. Casey, MD (1 shared paper).

What insurance does Dr. Stephen Wayne Hosea accept?

Dr. Hosea is in network with 7 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. Medicare plans come from the most carriers, 7. Check the plan with the practice before a visit.

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