Dr. David A. Wei, MD
- Medicare services, 2024
- 1,559
- Medicare patients, 2024
- 790
- Part D claims, 2024
- 266
- MIPS score, 2024
- 97
- Hospital affiliations
- 3
- Practice address
- 2540 East St, Concord, CA 94520
- Practice phone
- Call (925) 682-8200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Wei's professional email, personal email and mobile number
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Dr. David A. Wei is an emergency medicine physician in Concord, California
Dr. Wei practices at Concord Medical Center in Concord, California, part of John Muir Health.
Dr. Wei's NPI, 1437354081, was assigned on June 15, 2007. Dr. Wei graduated from Feinberg School of Medicine in 2007. Dr. Wei holds California license A112876.
- NPI
- 1437354081NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577757079
- NPI enumeration date
- June 15, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (925) 682-8200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 45
- Medical school graduation
- 2007
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David A. Wei practices at Concord Medical Center in Concord, California
Dr. Wei's primary practice is Concord Medical Center, at 2540 East St, Concord, CA 94520 in Contra Costa County. The practice phone is (925) 682-8200.
- Concord Medical Center2540 East St, Concord, CA 94520 · Contra Costa CountyPhone(925) 682-8200
Source: Dmand AI Affiliation Data
Dr. David A. Wei is affiliated with 4 sites of care and 4 medical groups
Dr. Wei's primary practice is Concord Medical Center in Concord, California, part of John Muir Health. Dr. Wei is also affiliated with John Muir Medical Center, Walnut Creek. The medical group on file is Vituity. Dmand AI also links Dr. Wei to 1 more hospital, 3 medical groups and 1 home health agency, 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. David A. Wei's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Wei practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Concord Medical Center | Available with a free account |
| +3 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across John Muir Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. David A. Wei is one of 7,423 emergency medicine physicians in California
Emergency medicine is Dr. Wei's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Wei is board certified in emergency medicine by the American Board of Emergency Medicine. Dmand AI has Dr. Wei's licenses on file in 2 states: California and Michigan.
Specialties and state licenses
- Emergency medicine, CaliforniaPrimary
- Michigan license
Emergency medicine physicians near Dr. Wei
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. David A. Wei billed Medicare for 1,559 services in 2024
CMS data shows 1,559 Medicare services from Dr. Wei across 12 procedure codes in 2024, for 790 Medicare patients. Medicare paid $136,352 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Wei's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 9172024: 9635%
- Surgery
- 2023: 3692024: 47428%
- Tests and treatments
- 2023: 1202024: 1222%
Dr. Wei compared with the California median for emergency medicine physicians, 2024
- Dr. Wei
- California median
- Medicare services
- 1,559vs 2655.9 times
- Medicare patients
- 790vs 2433.3 times
- Part D claims
- 104vs 6268% above
Medians across 7,079 emergency medicine physicians in California with Dmand AI profiles that report each measure.
Dr. Wei'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.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Wei 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. David A. Wei treated 790 Medicare patients in 2024, average age 77
CMS counts 790 Medicare patients who saw Dr. Wei in 2024. The largest group is 75 to 84, with 280 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 30% are also on Medicaid. Their average risk score is 2.36, 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. Wei's median patient age at 49, with 56% women.
Dr. Wei's Medicare patients by age, 2024
Dr. Wei's Medicare patients by sex, 2024
- Women42854%
- Men36246%
Chronic conditions among Dr. Wei's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis52%
- Chronic kidney disease43%
- Diabetes37%
- Mood disorders37%
- Atrial fibrillation36%
- Heart failure36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Wei's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women56%
- Men42%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. David A. Wei wrote 266 Medicare Part D claims in 2024
In 2024, Dr. Wei wrote 266 Medicare Part D claims for 186 patients. 88% of them were for generic drugs. CMS names the drug for 104 of them, across 6 drugs with 11 or more claims each, at $47,730 in total drug cost. In 2023, CMS named 127 claims across 6 drugs.
Dr. Wei's Part D claims by kind of drug, 2024
- Generic235 claims88%
- Brand-name and other31 claims12%
Dr. Wei'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. Wei's Part D claims, 2024
- Opioids9%25 of 266 claims
- Antibiotics33%87 of 266 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: 1272024: 10418%
Drugs named by CMS: 6 in 2024, 6 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. David A. Wei scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Wei for performance year 2024, reported as part of a group. Dr. Wei accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 123 procedures of removal of tissue by Dr. Wei, more than 87% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Wei's MIPS scores, performance year 2024
- 97of 100Final score
- 90of 100Quality
- 40of 100Improvement Activities
- 78of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Wei ranks in Medicare procedure volume
- Removal of tissue
- 87th percentile123 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. David A. Wei received $901 in industry payments from 2016 to 2025
CMS Open Payments shows 20 general payments to Dr. Wei from 7 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Smith & Nephew, Inc. paid the most, $335.
General payments to Dr. Wei by program year, 2016 to 2025
Companies that paid Dr. Wei the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. David A. Wei graduated from Feinberg School of Medicine
Dr. Wei graduated from Feinberg School of Medicine in 2007. Dr. Wei is a member of ACEP.
- Medical school
- Board certified in emergency medicine
Source: Dmand AI Professional Profile Data
Dr. David A. Wei accepts plans from 6 insurance carriers
Dr. Wei is in network with 6 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- United Healthcare
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- Elevance
- HCSC
Plan types Dr. Wei accepts, by number of carriers
- PPO3
- Medicare2
- POS2
- EPO1
- HMO1
Source: Dmand AI Insurance Network Data
Sources for Dr. David A. Wei'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)Doctors and Clinicians Utilization Data (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 Dr. David A. Wei
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. David A. Wei's NPI number?
Dr. David A. Wei's NPI number is 1437354081. It was assigned on June 15, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. David A. Wei?
Dr. David A. Wei is an emergency medicine physician in Concord, California. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. David A. Wei practice?
Dr. Wei practices at 2540 East St, Concord, CA 94520. Dr. Wei's primary practice is Concord Medical Center in Concord, California, part of John Muir Health. Dmand AI also links Dr. Wei to 1 hospital, 3 medical groups and 1 home health agency.
What is Dr. David A. Wei's office phone number?
The practice phone on file for Dr. Wei is (925) 682-8200.
What is Dr. David A. Wei's medical license number?
Dr. Wei holds California license A112876, one of the licenses on file in 2 states.
Which states has Dr. David A. Wei been licensed in?
Dmand AI has state licenses on file for Dr. Wei in California (2010 to 2026) and Michigan (2007 to 2014).
Which hospitals is Dr. David A. Wei affiliated with?
Dr. Wei practices at Concord Medical Center in Concord, California. Dr. Wei is also affiliated with John Muir Medical Center, Walnut Creek. Dmand AI links Dr. Wei to 1 more hospital.
What medical group is Dr. David A. Wei part of?
Dr. Wei is linked to Vituity. Dmand AI links Dr. Wei to 3 more medical groups.
Does Dr. David A. Wei accept Medicare?
Yes. CMS data shows Dr. Wei billed Medicare for 1,559 services in 2024, and Dr. Wei accepts Medicare assignment.
What is Dr. David A. Wei's MIPS score?
Dr. Wei's MIPS final score for performance year 2024 is 97 out of 100, reported as part of a group.
Show 8 more questionsShow fewer questions
How many Medicare patients does Dr. David A. Wei see?
CMS counts 790 Medicare patients who saw Dr. Wei in 2024, with an average age of 77.
Is Dr. David A. Wei board certified?
Yes. Dr. Wei is board certified in emergency medicine by the American Board of Emergency Medicine.
What services does Dr. David A. Wei bill to Medicare?
In 2024, Dr. Wei's most billed Medicare services were emergency department visit (99285), surgery: skin and soft tissue (11042) and office visit, established patient (99213).
Where did Dr. David A. Wei go to medical school?
Dr. Wei graduated from Feinberg School of Medicine in 2007.
What drugs does Dr. David A. Wei prescribe most?
In 2024 Medicare Part D data, Dr. Wei's most prescribed drugs by claims were Cephalexin, Hydrocodone-Acetaminophen and Doxycycline Hyclate.
Has Dr. David A. Wei received payments from drug or device companies?
CMS Open Payments shows $901 in general payments to Dr. Wei from 7 companies from 2016 to 2025. The largest total came from Smith & Nephew, Inc.
How long has Dr. David A. Wei been practicing?
Dr. Wei graduated from medical school in 2007, 19 years ago.
What insurance does Dr. David A. Wei accept?
Dr. Wei is in network with 6 carriers, including United Healthcare, Aspirus Health Plan and Blue Cross and Blue Shield of Kansas City. PPO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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