Clin Pract Cases Emerg Med
Dr. William Michael Downes, MD
NPI1912494808PAC ID0648670497
- Medicare services, 2024
- 311
- Medicare patients, 2024
- 237
- Part D claims, 2024
- 118
- Publications
- 1
- MIPS score, 2024
- 89
- Practice address
- 11234 Anderson St, Loma Linda, CA 92354
- Practice phone
- Call (909) 558-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Downes' professional email, personal email and mobile number
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Dr. William Michael Downes is an emergency medicine physician in Loma Linda, California
Dr. Downes practices at Loma Linda University Medical Center in Loma Linda, California, part of Seventh-day Adventist Church.
Dr. Downes' NPI, 1912494808, was assigned on April 17, 2018. Dr. Downes graduated from Loma Linda University School of Medicine in 2018. Dr. Downes holds California license A163443.
NPI and contact details
- NPI
- 1912494808NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648670497
- NPI enumeration date
- April 17, 2018
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (909) 558-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- 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)
Dr. William Michael Downes practices at Loma Linda University Medical Center in Loma Linda, California
Dr. Downes' primary practice is Loma Linda University Medical Center, at 11234 Anderson St, Loma Linda, CA 92354 in San Bernardino County. The practice phone is (909) 558-4000.
- Loma Linda University Medical Center11234 Anderson St, Loma Linda, CA 92354 · San Bernardino CountyPhone(909) 558-4000
Source: Dmand AI Affiliation Data
Dr. William Michael Downes is affiliated with 1 site of care and 1 medical group
Dr. Downes' primary practice is Loma Linda University Medical Center in Loma Linda, California, part of Seventh-day Adventist Church. The medical group on file is Loma Linda University Faculty Medical Group (LLUFMG).
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William Michael Downes' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Downes practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Loma Linda University Medical Center | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. William Michael Downes is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Downes' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Downes is licensed in California.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
Emergency medicine physicians near Dr. Downes
Counts of emergency medicine physicians with a Dmand AI profile, by place and practice. Each opens the list.
7,423emergency medicine physicians in California71emergency medicine physicians in Loma Linda58emergency medicine physicians at Loma Linda University Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. William Michael Downes billed Medicare for 311 services in 2024
CMS data shows 311 Medicare services from Dr. Downes across 6 procedure codes in 2024, for 237 Medicare patients. Medicare paid $28,791 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 2024311
Medicare patients237
Paid by Medicare$28,791
Procedure codes6
Dr. Downes' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1822024: 22524%
- Tests and treatments
- 2023: 642024: 8634%
Dr. Downes compared with the California median for emergency medicine physicians, 2024
- Dr. Downes
- California median
- Medicare services
- 311vs 26517% above
- Medicare patients
- 237vs 243Close to median
- Part D claims
- 12vs 6281% below
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Downes' 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.
Need commercial claims for Dr. Downes?
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William Michael Downes treated 237 Medicare patients in 2024, average age 70
CMS counts 237 Medicare patients who saw Dr. Downes in 2024. The largest group is 65 to 74, with 103 patients. 75% of them have high blood pressure, and 73% have high cholesterol. 59% are also on Medicaid. Their average risk score is 2.85, 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. Downes' median patient age at 52, with 54% women.
Medicare patients, 2024237
Average age70
Average risk score2.85
Also on Medicaid59%
Dr. Downes' Medicare patients by age, 2024
Dr. Downes' Medicare patients by sex, 2024
- Women13155%
- Men10645%
Chronic conditions among Dr. Downes' Medicare patients, 2024
- High blood pressure75%
- High cholesterol73%
- Diabetes57%
- Arthritis51%
- Heart failure47%
- Chronic kidney disease45%
- Ischemic heart disease42%
- Mood disorders40%
Share of Medicare patients with each condition. A patient can have several.
Dr. Downes' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 52
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. William Michael Downes wrote 118 Medicare Part D claims in 2024
In 2024, Dr. Downes wrote 118 Medicare Part D claims for 81 patients. 92% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $119 in total drug cost. In 2023, CMS named 29 claims across 2 drugs.
Part D claims, 2024118
Drugs named by CMS1
Total drug cost$119
Part D patients81
Dr. Downes' Part D claims by kind of drug, 2024
- Generic109 claims92%
- Brand-name and other9 claims8%
Dr. Downes' 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. Downes' Part D claims, 2024
- Antibiotics28%33 of 118 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: 292024: 1259%
Drugs named by CMS: 1 in 2024, 2 in 2023.
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. William Michael Downes scored 89 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Downes for performance year 2024, reported as part of a group. Dr. Downes accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Downes' MIPS scores, performance year 2024
- 89of 100Final score
- 72.1of 100Quality
- 80of 100Promoting Interoperability
- 40of 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. William Michael Downes has 1 publication on record
Dmand AI links 1 paper to Dr. Downes. Dr. Downes' most frequent co-author is Michael Kiemeney, MD.
Papers1
Dr. Downes' most frequent co-authors
Recent publications by Dr. Downes
See who Dr. Downes researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Downes works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. William Michael Downes graduated from Loma Linda University School of Medicine
Dr. Downes graduated from Loma Linda University School of Medicine in 2018.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. William Michael Downes's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors 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-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. William Michael Downes
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. William Michael Downes' NPI number?
Dr. William Michael Downes' NPI number is 1912494808. It was assigned on April 17, 2018, and it is active in the NPI Registry.
What kind of doctor is Dr. William Michael Downes?
Dr. William Michael Downes is an emergency medicine physician in Loma Linda, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. William Michael Downes practice?
Dr. Downes practices at 11234 Anderson St, Loma Linda, CA 92354. Dr. Downes' primary practice is Loma Linda University Medical Center in Loma Linda, California, part of Seventh-day Adventist Church.
What is Dr. William Michael Downes' office phone number?
The practice phone on file for Dr. Downes is (909) 558-4000.
What is Dr. William Michael Downes' medical license number?
Dr. Downes holds California license A163443.
Which hospitals is Dr. William Michael Downes affiliated with?
Dr. Downes practices at Loma Linda University Medical Center in Loma Linda, California.
What medical group is Dr. William Michael Downes part of?
Dr. Downes is linked to Loma Linda University Faculty Medical Group (LLUFMG).
Does Dr. William Michael Downes accept Medicare?
Yes. CMS data shows Dr. Downes billed Medicare for 311 services in 2024, and Dr. Downes accepts Medicare assignment.
What is Dr. William Michael Downes' MIPS score?
Dr. Downes' MIPS final score for performance year 2024 is 89 out of 100, reported as part of a group.
How many Medicare patients does Dr. William Michael Downes see?
CMS counts 237 Medicare patients who saw Dr. Downes in 2024, with an average age of 70.
Show 6 more questionsShow fewer questions
What services does Dr. William Michael Downes bill to Medicare?
In 2024, Dr. Downes' most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and critical care (99291).
Where did Dr. William Michael Downes go to medical school?
Dr. Downes graduated from Loma Linda University School of Medicine in 2018.
What drugs does Dr. William Michael Downes prescribe most?
In 2024 Medicare Part D data, Dr. Downes' most prescribed drugs by claims were Cephalexin.
How long has Dr. William Michael Downes been practicing?
Dr. Downes graduated from medical school in 2018, 8 years ago.
Does Dr. William Michael Downes do research?
Dmand AI links 1 publication to Dr. Downes.
Who does Dr. William Michael Downes publish with?
Dr. Downes' most frequent co-authors are Michael Kiemeney, MD (1 shared paper).
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