Dr. Darius C. Fewlass, MD
- Medicare services, 2024
- 22
- Medicare patients, 2024
- 24
- Part D claims, 2024
- 207
- Publications
- 1
- Hospital affiliations
- 2
- Practice address
- 1200 El Camino Real, South San Francisco, CA 94080
- Practice phone
- Call (650) 742-3200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Fewlass' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Darius C. Fewlass is an emergency medicine physician in South San Francisco, California
Dr. Fewlass practices at Kaiser Permanente South San Francisco Medical Center in South San Francisco, California, part of Kaiser Permanente.
Dr. Fewlass' NPI, 1902185085, was assigned on August 8, 2011. Dr. Fewlass graduated from Vagelos College of Physicians and Surgeons in 2010. Dr. Fewlass holds California license A121543.
- NPI
- 1902185085NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2769614858
- NPI enumeration date
- August 8, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (650) 742-3200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 42
- Medical school graduation
- 2010
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Darius C. Fewlass practices at Kaiser Permanente South San Francisco Medical Center in South San Francisco, California
Dr. Fewlass' primary practice is Kaiser Permanente South San Francisco Medical Center, at 1200 El Camino Real, South San Francisco, CA 94080 in San Mateo County. The practice phone is (650) 742-3200.
- Kaiser Permanente South San Francisco Medical Center1200 El Camino Real, South San Francisco, CA 94080 · San Mateo CountyPhone(650) 742-3200
Source: Dmand AI Affiliation Data
Dr. Darius C. Fewlass is affiliated with 2 sites of care and 8 medical groups
Dr. Fewlass' primary practice is Kaiser Permanente South San Francisco Medical Center in South San Francisco, California, part of Kaiser Permanente. Dr. Fewlass is also affiliated with Alameda Health System - Highland Hospital. The medical group on file is The Permanente Medical Group, Inc. Dmand AI also links Dr. Fewlass to 7 more medical groups, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Darius C. Fewlass' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Fewlass practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Kaiser Permanente South San Francisco Medical Center | Available with a free account |
| +1 more site and 7 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Darius C. Fewlass is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Fewlass' primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Fewlass is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Fewlass' licenses on file in 11 states: California, Illinois, Tennessee, Georgia, North Carolina, Virginia, Alabama, Arizona, Florida, Mississippi and Indiana.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
- Illinois license
- Tennessee license
- Georgia license
- North Carolina license
- Virginia license
- Alabama license
- Arizona license
- Florida license
- Mississippi license
- Indiana license
Emergency medicine physicians near Dr. Fewlass
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
Dr. Darius C. Fewlass billed Medicare for 22 services in 2024
CMS data shows 22 Medicare services from Dr. Fewlass across 1 procedure code in 2024, for 24 Medicare patients. Medicare paid $2,051 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Fewlass' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 172024: 2229%
Dr. Fewlass compared with the California median for emergency medicine physicians, 2024
- Dr. Fewlass
- California median
- Medicare services
- 22vs 26592% below
- Medicare patients
- 24vs 24390% below
- Part D claims
- 133vs 622.1 times
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Fewlass' 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. Fewlass?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Fewlass and other emergency medicine physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Darius C. Fewlass treated 24 Medicare patients in 2024, average age 66
CMS counts 24 Medicare patients who saw Dr. Fewlass in 2024. 75% of them have high blood pressure, and 54% have high cholesterol. 54% are also on Medicaid. Their average risk score is 1.49, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Fewlass' median patient age at 38, with 54% women.
Dr. Fewlass' Medicare patients by sex, 2024
- Women1250%
- Men1250%
Chronic conditions among Dr. Fewlass' Medicare patients, 2024
- High blood pressure75%
- High cholesterol54%
- Diabetes50%
Share of Medicare patients with each condition. A patient can have several.
Dr. Fewlass' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 38
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. Darius C. Fewlass wrote 207 Medicare Part D claims in 2024
In 2024, Dr. Fewlass wrote 207 Medicare Part D claims for 129 patients. 100% of them were for generic drugs. CMS names the drug for 133 of them, across 5 drugs with 11 or more claims each, at $843 in total drug cost. In 2023, CMS named 117 claims across 5 drugs.
Dr. Fewlass' 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. Fewlass' Part D claims, 2024
- Opioids22%46 of 207 claims
- Antibiotics23%48 of 207 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: 1172024: 13314%
Drugs named by CMS: 5 in 2024, 5 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 Dr. Darius C. Fewlass takes part in Medicare
Dr. Fewlass 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. Darius C. Fewlass has 1 publication on record
Dmand AI links 1 paper to Dr. Fewlass.
Recent publications by Dr. Fewlass
See who Dr. Fewlass researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Fewlass 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. Darius C. Fewlass graduated from Vagelos College of Physicians and Surgeons
Dr. Fewlass graduated from Vagelos College of Physicians and Surgeons in 2010.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. Darius C. Fewlass accepts plans from 6 insurance carriers
Dr. Fewlass is in network with 6 carriers, including Kaiser Permanente, AR State Medicaid and CMS Medicare. Medicaid plans come from the most carriers, 4. Check the plan with the practice before a visit.
- Kaiser Permanente
- AR State Medicaid
- CMS Medicare
- GA State Medicaid
- WI State Medicaid
- WV State Medicaid
Plan types Dr. Fewlass accepts, by number of carriers
- Medicaid4
- EPO1
- HMO1
- Medicare1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Darius C. Fewlass'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) |
| 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 |
| 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 Dr. Darius C. Fewlass
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. Darius C. Fewlass' NPI number?
Dr. Darius C. Fewlass' NPI number is 1902185085. It was assigned on August 8, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Darius C. Fewlass?
Dr. Darius C. Fewlass is an emergency medicine physician in South San Francisco, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Darius C. Fewlass practice?
Dr. Fewlass practices at 1200 El Camino Real, South San Francisco, CA 94080. Dr. Fewlass' primary practice is Kaiser Permanente South San Francisco Medical Center in South San Francisco, California, part of Kaiser Permanente. Dmand AI also links Dr. Fewlass to 7 medical groups.
What is Dr. Darius C. Fewlass' office phone number?
The practice phone on file for Dr. Fewlass is (650) 742-3200.
What is Dr. Darius C. Fewlass' medical license number?
Dr. Fewlass holds California license A121543, one of the licenses on file in 11 states.
Which states has Dr. Darius C. Fewlass been licensed in?
Dmand AI has state licenses on file for Dr. Fewlass in California (2012 to 2026), Illinois (2014 to 2023), Tennessee (2014 to 2021), Georgia (2014 to 2020), North Carolina (2014 to 2020), Virginia (2015 to 2020), Alabama (2014 to 2019), Arizona (2017 to 2019), Florida (2014 to 2019), Mississippi (2017 to 2018) and Indiana (2016 to 2017).
Which hospitals is Dr. Darius C. Fewlass affiliated with?
Dr. Fewlass practices at Kaiser Permanente South San Francisco Medical Center in South San Francisco, California. Dr. Fewlass is also affiliated with Alameda Health System - Highland Hospital.
What medical group is Dr. Darius C. Fewlass part of?
Dr. Fewlass is linked to The Permanente Medical Group, Inc. Dmand AI links Dr. Fewlass to 7 more medical groups.
Does Dr. Darius C. Fewlass accept Medicare?
Yes. CMS data shows Dr. Fewlass billed Medicare for 22 services in 2024, and Dr. Fewlass accepts Medicare assignment.
How many Medicare patients does Dr. Darius C. Fewlass see?
CMS counts 24 Medicare patients who saw Dr. Fewlass in 2024, with an average age of 66.
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Is Dr. Darius C. Fewlass board certified?
Yes. Dr. Fewlass is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. Darius C. Fewlass bill to Medicare?
In 2024, Dr. Fewlass' most billed Medicare services were emergency department visit (99284).
Where did Dr. Darius C. Fewlass go to medical school?
Dr. Fewlass graduated from Vagelos College of Physicians and Surgeons in 2010.
What drugs does Dr. Darius C. Fewlass prescribe most?
In 2024 Medicare Part D data, Dr. Fewlass' most prescribed drugs by claims were Hydrocodone-Acetaminophen, Prednisone and Ibuprofen.
How long has Dr. Darius C. Fewlass been practicing?
Dr. Fewlass graduated from medical school in 2010, 16 years ago.
Does Dr. Darius C. Fewlass do research?
Dmand AI links 1 publication to Dr. Fewlass.
What insurance does Dr. Darius C. Fewlass accept?
Dr. Fewlass is in network with 6 carriers, including Kaiser Permanente, AR State Medicaid and CMS Medicare. Medicaid plans come from the most carriers, 4. Check the plan with the practice before a visit.
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