William K. Fleming III
- Medicare services, 2024
- 763
- Medicare patients, 2024
- 471
- Part D claims, 2024
- 92
- Hospital affiliations
- 2
- Industry payments
- $21
- Practice address
- 3865 Jackson Street, Riverside, CA 92503
- Practice phone
- Call (951) 688-2211
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find William Fleming's professional email, personal email and mobile number
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William K. Fleming III is an emergency medicine physician in Riverside, California
William Fleming practices at Parkview Community Hospital Medical Center in Riverside, California, part of AHMC Healthcare.
William Fleming's NPI, 1053522433, was assigned on May 25, 2007. William Fleming graduated from VCU School of Medicine in 2005. William Fleming holds California license A97279.
- NPI
- 1053522433NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3779642889
- NPI enumeration date
- May 25, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (951) 688-2211
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 47
- Medical school graduation
- 2005
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
William K. Fleming III practices at Parkview Community Hospital Medical Center in Riverside, California
William Fleming's primary practice is Parkview Community Hospital Medical Center, at 3865 Jackson Street, Riverside, CA 92503 in Riverside County. The practice phone is (951) 688-2211.
- Parkview Community Hospital Medical Center3865 Jackson Street, Riverside, CA 92503 · Riverside CountyPhone(951) 688-2211
Source: Dmand AI Affiliation Data
William K. Fleming III is affiliated with 2 sites of care and 2 medical groups
William Fleming's primary practice is Parkview Community Hospital Medical Center in Riverside, California, part of AHMC Healthcare. William Fleming is also affiliated with Southern California Hospital at Hollywood. The medical group on file is Riverside Emergency Physicians Medical Group. Dmand AI also links William Fleming to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at William K. Fleming III's practice
Dmand AI tracks the electronic health record (EHR) system at each site where William Fleming practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Parkview Community Hospital Medical Center | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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William K. Fleming III is one of 7,423 emergency medicine physicians in California
Emergency medicine is William Fleming's primary specialty in the NPI Registry, under taxonomy code 207P00000X. William Fleming is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has William Fleming's licenses on file in 2 states: California and Virginia.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
- Student in an organized health care education/training program, Virginia
Emergency medicine physicians near William Fleming
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 K. Fleming III billed Medicare for 763 services in 2024
CMS data shows 763 Medicare services from William Fleming across 4 procedure codes in 2024, for 471 Medicare patients. Medicare paid $70,780 for them. Every service was in a facility, such as a hospital, rather than an office.
William Fleming's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 3952024: 49024%
- Tests and treatments
- 2023: 2022024: 27335%
William Fleming compared with the California median for emergency medicine physicians, 2024
- William Fleming
- California median
- Medicare services
- 763vs 2652.9 times
- Medicare patients
- 471vs 24394% above
- Part D claims
- 28vs 6255% below
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
William Fleming'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.
Need commercial claims for William Fleming?
Medicare shows one payer. Book a meeting to get commercial claims data for William Fleming and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
William K. Fleming III treated 471 Medicare patients in 2024, average age 70
CMS counts 471 Medicare patients who saw William Fleming in 2024. The largest group is 65 to 74, with 179 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 91% are also on Medicaid. Their average risk score is 3.48, 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 Fleming's median patient age at 39, with 54% women.
William Fleming's Medicare patients by age, 2024
William Fleming's Medicare patients by sex, 2024
- Women24552%
- Men22648%
Chronic conditions among William Fleming's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Mood disorders75%
- Depression74%
- Arthritis70%
- Anxiety69%
- Diabetes65%
- Chronic kidney disease58%
Share of Medicare patients with each condition. A patient can have several.
William Fleming's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 39
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
William K. Fleming III wrote 92 Medicare Part D claims in 2024
In 2024, William Fleming wrote 92 Medicare Part D claims for 59 patients. 92% of them were for generic drugs. CMS names the drug for 28 of them, across 2 drugs with 11 or more claims each, at $52 in total drug cost. In 2023, CMS named 34 claims across 2 drugs.
William Fleming's Part D claims by kind of drug, 2024
- Generic85 claims92%
- Brand-name and other7 claims8%
William Fleming'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 William Fleming's Part D claims, 2024
- Opioids23%21 of 92 claims
- Antibiotics21%19 of 92 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: 342024: 2818%
Drugs named by CMS: 2 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
How William K. Fleming III takes part in Medicare
William Fleming 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 K. Fleming III received $21 in industry payments in 2025
CMS Open Payments shows 1 general payment to William Fleming from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Stryker Corporation paid the most, $21.
Companies that paid William Fleming the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
William K. Fleming III graduated from VCU School of Medicine
William Fleming graduated from VCU School of Medicine in 2005.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
William K. Fleming III accepts plans from 1 insurance carrier
William Fleming is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
- CMS Medicare
Source: Dmand AI Insurance Network Data
Sources for William K. Fleming III'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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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 William K. Fleming III
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 K. Fleming III's NPI number?
William K. Fleming III's NPI number is 1053522433. It was assigned on May 25, 2007, and it is active in the NPI Registry.
What does William K. Fleming III specialize in?
William K. Fleming III is an emergency medicine physician in Riverside, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does William K. Fleming III practice?
William Fleming practices at 3865 Jackson Street, Riverside, CA 92503. William Fleming's primary practice is Parkview Community Hospital Medical Center in Riverside, California, part of AHMC Healthcare. Dmand AI also links William Fleming to 1 medical group.
What is William K. Fleming III's office phone number?
The practice phone on file for William Fleming is (951) 688-2211.
What is William K. Fleming III's medical license number?
William Fleming holds California license A97279, one of the licenses on file in 2 states.
Which states has William K. Fleming III been licensed in?
Dmand AI has state licenses on file for William Fleming in California (2006 to 2026) and Virginia (2007 to 2008).
Which hospitals is William K. Fleming III affiliated with?
William Fleming practices at Parkview Community Hospital Medical Center in Riverside, California. William Fleming is also affiliated with Southern California Hospital at Hollywood.
What medical group is William K. Fleming III part of?
William Fleming is linked to Riverside Emergency Physicians Medical Group. Dmand AI links William Fleming to 1 more medical group.
Does William K. Fleming III accept Medicare?
Yes. CMS data shows William Fleming billed Medicare for 763 services in 2024, and William Fleming accepts Medicare assignment.
How many Medicare patients does William K. Fleming III see?
CMS counts 471 Medicare patients who saw William Fleming in 2024, with an average age of 70.
Show 7 more questionsShow fewer questions
Is William K. Fleming III board certified?
Yes. William Fleming is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does William K. Fleming III bill to Medicare?
In 2024, William Fleming's most billed Medicare services were emergency department visit (99285), heart test or procedure (93010) and critical care (99291).
Where did William K. Fleming III go to medical school?
William Fleming graduated from VCU School of Medicine in 2005.
What drugs does William K. Fleming III prescribe most?
In 2024 Medicare Part D data, William Fleming's most prescribed drugs by claims were Tramadol HCl and Ibuprofen.
Has William K. Fleming III received payments from drug or device companies?
CMS Open Payments shows $21 in general payments to William Fleming from 1 company from 2025 to 2025. The largest total came from Stryker Corporation.
How long has William K. Fleming III been practicing?
William Fleming graduated from medical school in 2005, 21 years ago.
What insurance does William K. Fleming III accept?
William Fleming is in network with 1 carrier, including CMS Medicare. Medicare plans come from the most carriers, 1. Check the plan with the practice before a visit.
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