Dr. Edward M. Kerwin, MD

  • Medford, OR
  • Allergy physician
NPI1568465847PAC ID5092702761
Medicare services, 2024
10,468
Medicare patients, 2024
283
Part D claims, 2024
511
Publications
99
Clinical trials
14
Practice address
3860 Crater Lake Ave, Medford, OR 97504
Practice phone
Call (541) 858-1003
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Allergy & Asthma Center of Southern Oregon

Medford, Oregon

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Dr. Edward M. Kerwin is an allergy physician in Medford, Oregon

Dr. Kerwin practices at Allergy & Asthma Center of Southern Oregon in Medford, Oregon.

Dr. Kerwin's NPI, 1568465847, was assigned on May 31, 2005. Dr. Kerwin graduated from University of Colorado School of Medicine, Denver in 1988. Dr. Kerwin holds Oregon license MD18405.

NPI and contact details
Medicare PAC ID
5092702761
NPI enumeration date
May 31, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(541) 858-1003
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
64
Medical school graduation
1988

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

Dr. Edward M. Kerwin practices at Allergy & Asthma Center of Southern Oregon in Medford, Oregon

Dr. Kerwin's primary practice is Allergy & Asthma Center of Southern Oregon, at 3860 Crater Lake Ave, Medford, OR 97504 in Jackson County. The practice phone is (541) 858-1003.

  • Allergy & Asthma Center of Southern Oregon
    3860 Crater Lake Ave, Medford, OR 97504 · Jackson CountyPhone(541) 858-1003

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Edward M. Kerwin is affiliated with 2 sites of care and 1 medical group

Dr. Kerwin's primary practice is Allergy & Asthma Center of Southern Oregon in Medford, Oregon. The medical group on file is Allergy & Asthma Center of Southern Oregon. Dmand AI also links Dr. Kerwin to 1 more group practice or clinic, named with a free account.

See all 3 affiliations for Dr. Kerwin

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data

Dmand AI tracks the EHR system at Dr. Edward M. Kerwin's practice

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

EHR by site
SiteEHR vendor and product
Allergy & Asthma Center of Southern OregonAvailable with a free account
+1 more affiliated siteAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Edward M. Kerwin is one of 7 allergy physicians in Oregon

Allergy is Dr. Kerwin's primary specialty in the NPI Registry, under taxonomy code 207KA0200X. Dr. Kerwin is licensed in Oregon.

Specialties and state licenses

  • Allergy, OregonPrimaryLicense MD18405 · taxonomy 207KA0200X

Allergy physicians near Dr. Kerwin

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

7allergy physicians in Oregon
2allergy physicians in Medford

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

Dr. Edward M. Kerwin billed Medicare for 10,468 services in 2024

CMS data shows 10,468 Medicare services from Dr. Kerwin across 9 procedure codes in 2024, for 283 Medicare patients. Medicare paid $120,926 for them. Every service was in an office.

Medicare services, 202410,468
Medicare patients283
Paid by Medicare$120,926
Procedure codes9

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

  • 2023
  • 2024
Tests and treatments
2023: 9,2532024: 10,35012%
Office and hospital visits
2023: 1092024: 1188%

Dr. Kerwin'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. Kerwin

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Source: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data

Dr. Edward M. Kerwin treated 283 Medicare patients in 2024, average age 73

CMS counts 283 Medicare patients who saw Dr. Kerwin in 2024. The largest group is 65 to 74, with 153 patients. 67% of them have high cholesterol, and 59% have high blood pressure. 6% are also on Medicaid. Their average risk score is 0.83, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Kerwin's median patient age at 70, with 60% women.

Medicare patients, 2024283
Average age73
Average risk score0.83
Also on Medicaid6%

Dr. Kerwin's Medicare patients by age, 2024

Dr. Kerwin's Medicare patients by sex, 2024

  • Women17160%
  • Men11240%

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

  1. High cholesterol67%
  2. High blood pressure59%
  3. Arthritis51%
  4. Asthma51%
  5. Mood disorders23%
  6. Depression21%
  7. Anxiety17%
  8. Cancer16%

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

Dr. Kerwin's patients across all payers

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

Patient panel by age, all payers

Median age 70

Patient panel by sex, all payers

  • Women60%
  • Men40%

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

Dr. Edward M. Kerwin wrote 511 Medicare Part D claims in 2024

In 2024, Dr. Kerwin wrote 511 Medicare Part D claims for 132 patients. 71% of them were for generic drugs. CMS names the drug for 401 of them, across 8 drugs with 11 or more claims each, at $44,369 in total drug cost. In 2023, CMS named 408 claims across 12 drugs.

Part D claims, 2024511
Drugs named by CMS8
Total drug cost$44,369
Part D patients132

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

  • Generic362 claims71%
  • Brand-name149 claims29%

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

  • Antibiotics4%22 of 511 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: 4082024: 4012%

Drugs named by CMS: 8 in 2024, 12 in 2023.

See all prescribing by Dr. Kerwin

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. Edward M. Kerwin scored 23 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 23 out of 100 for Dr. Kerwin for performance year 2024, reported individually. Dr. Kerwin accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Dr. Kerwin's MIPS scores, performance year 2024

  • 23of 100Final score
  • 0of 100Quality
  • 0of 100Improvement Activities
  • 77of 100Cost

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

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

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Dr. Edward M. Kerwin has 99 publications on record

Dmand AI links 99 papers to Dr. Kerwin, published from 2008 to 2025. 2019 was the busiest year, with 16. The most frequent topics are Bronchodilator Agents, Double-Blind Method and Pulmonary Disease, Chronic Obstructive. Dr. Kerwin has published most often in Int J Chron Obstruct Pulmon Dis. Dr. Kerwin's most frequent co-authors are Gary Thomas Ferguson, MD, David Andrew Lipson, MD and Paul Jones, MD.

Papers99
Years published2008 to 2025

Dr. Kerwin's papers by year, 2015 to 2025

Topics Dr. Kerwin writes about most

  • Bronchodilator Agents
  • Double-Blind Method
  • Pulmonary Disease, Chronic Obstructive
  • Administration, Inhalation
  • Forced Expiratory Volume
  • Muscarinic Antagonists
  • Drug Combinations
  • Adrenergic beta-2 Receptor Agonists

Dr. Kerwin's most frequent co-authors

Recent publications by Dr. Kerwin

See all 99 publications and co-authors

See who Dr. Kerwin researches with

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

How network discovery works

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

Dr. Edward M. Kerwin has worked on 14 clinical trials

Dmand AI links Dr. Kerwin to 14 clinical trials, 4 of them phase 3 studies. Conditions studied include Dermatitis, Atopic, Eczema and Asthma. Eli Lilly and Company sponsors the most, 3. Open Payments lists research payments to Dr. Kerwin that name 4 trials.

Clinical trials with Dr. Kerwin by phase

  1. NonePhase 1: no trials
  2. 1Phase 1/2: 1 trial
  3. 1Phase 2: 1 trial
  4. 4Phase 3: 4 trials
  5. 1Phase 4: 1 trial

Conditions in Dr. Kerwin's trials

  • Dermatitis, Atopic
  • Eczema
  • Asthma
  • Pulmonary Disease, Chronic Obstructive
  • Lung Diseases, Obstructive

Investigators on the most trials with Dr. Kerwin

Recent clinical trials with Dr. Kerwin

Pneumovirus InfectionsRespiratory Syncytial Virus InfectionsRSV Vaccine (GSK3844766A) high dose adjuvanted with AS01BRSV Vaccine (GSK3844766A) high dose adjuvanted with AS01ERSV Vaccine (GSK3844766A) low dose adjuvanted with AS01B
See all 14 clinical trials and co-investigators

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

Dr. Edward M. Kerwin received $196,824 in industry payments from 2016 to 2023

CMS Open Payments shows 433 general payments to Dr. Kerwin from 23 drug and device companies from 2016 to 2023. Consulting fees make up the largest share, 40% of the total. GlaxoSmithKline, LLC. paid the most, $48,348. It also lists 302 research payments totaling $978,235 from 2016 to 2022, naming 4 clinical trials.

General payments to Dr. Kerwin by program year, 2016 to 2023

General payments to Dr. Kerwin by kind, 2016 to 2023

$196.8Kin total
  • Consulting fees$77,75740%
  • Speaker and faculty fees$49,91325%
  • Travel and lodging$41,72021%
  • Education$13,5947%
  • Other$13,8407%

Companies that paid Dr. Kerwin the most, 2016 to 2023

Share is of all general payments to this clinician.

See all payments to Dr. Kerwin

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

Dr. Edward M. Kerwin graduated from University of Colorado School of Medicine, Denver

Dr. Kerwin graduated from University of Colorado School of Medicine, Denver in 1988.

  1. Medical schoolUniversity of Colorado School of Medicine, Denver

Source: Dmand AI Professional Profile Data

Sources for Dr. Edward M. Kerwin'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 phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
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)
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)
Training, board certification and membershipsDmand AI Professional Profile 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. Edward M. Kerwin

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. Edward M. Kerwin's NPI number?

Dr. Edward M. Kerwin's NPI number is 1568465847. It was assigned on May 31, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. Edward M. Kerwin?

Dr. Edward M. Kerwin is an allergy physician in Medford, Oregon. The primary specialty in the NPI Registry is Allergy Physician (taxonomy code 207KA0200X).

Where does Dr. Edward M. Kerwin practice?

Dr. Kerwin practices at 3860 Crater Lake Ave, Medford, OR 97504. Dr. Kerwin's primary practice is Allergy & Asthma Center of Southern Oregon in Medford, Oregon. Dmand AI also links Dr. Kerwin to 1 group practice or clinic.

What is Dr. Edward M. Kerwin's office phone number?

The practice phone on file for Dr. Kerwin is (541) 858-1003.

What is Dr. Edward M. Kerwin's medical license number?

Dr. Kerwin holds Oregon license MD18405.

What medical group is Dr. Edward M. Kerwin part of?

Dr. Kerwin is linked to Allergy & Asthma Center of Southern Oregon.

Does Dr. Edward M. Kerwin accept Medicare?

Yes. CMS data shows Dr. Kerwin billed Medicare for 10,468 services in 2024, and Dr. Kerwin accepts Medicare assignment.

What is Dr. Edward M. Kerwin's MIPS score?

Dr. Kerwin's MIPS final score for performance year 2024 is 23 out of 100, reported individually.

How many Medicare patients does Dr. Edward M. Kerwin see?

CMS counts 283 Medicare patients who saw Dr. Kerwin in 2024, with an average age of 73.

What services does Dr. Edward M. Kerwin bill to Medicare?

In 2024, Dr. Kerwin's most billed Medicare services were allergy test or treatment (95165), allergy test or treatment (95117) and allergy test or treatment (95004).

Show 6 more questionsShow fewer questions

Where did Dr. Edward M. Kerwin go to medical school?

Dr. Kerwin graduated from University of Colorado School of Medicine, Denver in 1988.

What drugs does Dr. Edward M. Kerwin prescribe most?

In 2024 Medicare Part D data, Dr. Kerwin's most prescribed drugs by claims were Prednisone, Fluticasone-Salmeterol and Albuterol Sulfate Hfa.

Has Dr. Edward M. Kerwin received payments from drug or device companies?

CMS Open Payments shows $196,824 in general payments to Dr. Kerwin from 23 companies from 2016 to 2023. The largest total came from GlaxoSmithKline, LLC.

How long has Dr. Edward M. Kerwin been practicing?

Dr. Kerwin graduated from medical school in 1988, 38 years ago.

Does Dr. Edward M. Kerwin do research?

Dmand AI links 99 publications to Dr. Kerwin, published from 2008 to 2025. Dr. Kerwin has worked on 14 clinical trials.

Who does Dr. Edward M. Kerwin publish with?

Dr. Kerwin's most frequent co-authors are Gary Thomas Ferguson, MD (13 shared papers), David Andrew Lipson, MD (12 shared papers) and Paul Jones, MD (11 shared papers).

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