Dr. Arnold A. Weekes, MD
- Medicare services, 2024
- 149
- Medicare patients, 2024
- 221
- Part D claims, 2019
- 1,031
- Hospital affiliations
- 1
- Industry payments
- $575
- Practice address
- 3901 Lone Tree Way, Antioch, CA 94509
- Practice phone
- Call (925) 779-7200
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Weekes' 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. Arnold A. Weekes is an anesthesiologist in Antioch, California
Dr. Weekes practices at Sutter Delta Medical Center in Antioch, California, part of Sutter Health.
Dr. Weekes' NPI, 1023057833, was assigned on June 6, 2006. Dr. Weekes graduated from Lewis Katz School of Medicine in 1999. Dr. Weekes holds California license 775521.
- NPI
- 1023057833NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8527150101
- NPI enumeration date
- June 6, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (925) 779-7200
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 53
- Medical school graduation
- 1999
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Arnold A. Weekes practices at Sutter Delta Medical Center in Antioch, California
Dr. Weekes' primary practice is Sutter Delta Medical Center, at 3901 Lone Tree Way, Antioch, CA 94509 in Contra Costa County. The practice phone is (925) 779-7200.
- Sutter Delta Medical Center3901 Lone Tree Way, Antioch, CA 94509 · Contra Costa CountyPhone(925) 779-7200
Source: Dmand AI Affiliation Data
Dr. Arnold A. Weekes is affiliated with 4 sites of care and 4 medical groups
Dr. Weekes' primary practice is Sutter Delta Medical Center in Antioch, California, part of Sutter Health. The medical group on file is Palo Alto Foundation Medical Group. Dmand AI also links Dr. Weekes to 3 more medical groups, 2 group practices and clinics and 1 ambulatory surgery center, 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. Arnold A. Weekes' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Weekes practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Sutter Delta 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 Sutter Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Arnold A. Weekes is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Weekes' primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Weekes is board certified in anesthesiology by the American Board of Anesthesiology. Dmand AI has Dr. Weekes' licenses on file in 4 states: California, New York, Maryland and New Jersey.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
- New York license
- Maryland license
- New Jersey license
Anesthesiologists near Dr. Weekes
Counts of anesthesiologists 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. Arnold A. Weekes billed Medicare for 149 services in 2024
CMS data shows 149 Medicare services from Dr. Weekes across 5 procedure codes in 2024, for 221 Medicare patients. Medicare paid $19,706 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Weekes' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 1212024: 14923%
Dr. Weekes compared with the California median for anesthesiologists, 2024
- Dr. Weekes
- California median
- Medicare services
- 149vs 722.1 times
- Medicare patients
- 221vs 14355% above
- Part D claims
- 1,031vs 2344.8 times
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. Weekes' 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. Weekes?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Weekes and other anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Arnold A. Weekes treated 221 Medicare patients in 2024, average age 73
CMS counts 221 Medicare patients who saw Dr. Weekes in 2024. The largest group is 65 to 74, with 84 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 46% are also on Medicaid. Their average risk score is 2.13, 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. Weekes' median patient age at 57, with 48% women.
Dr. Weekes' Medicare patients by age, 2024
Dr. Weekes' Medicare patients by sex, 2024
- Women11251%
- Men10949%
Chronic conditions among Dr. Weekes' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes56%
- Arthritis46%
- Chronic kidney disease43%
- Ischemic heart disease39%
- Heart failure37%
- Mood disorders36%
Share of Medicare patients with each condition. A patient can have several.
Dr. Weekes' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women48%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Arnold A. Weekes wrote 1,031 Medicare Part D claims in 2019
In 2019, Dr. Weekes wrote 1,031 Medicare Part D claims. They cover 21 drugs, with $59,848 in total drug cost. In 2018, CMS named 6,608 claims across 42 drugs.
Dr. Weekes' most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2018 to 2019
- 2018
- 2019
- Claims for drugs CMS names
- 2018: 6,6082019: 1,03184%
Drugs named by CMS: 21 in 2019, 42 in 2018.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
How Dr. Arnold A. Weekes takes part in Medicare
Dr. Weekes 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. Arnold A. Weekes received $575 in industry payments from 2016 to 2018
CMS Open Payments shows 29 general payments to Dr. Weekes from 8 drug and device companies from 2016 to 2018. Food and beverage make up the largest share, 99% of the total. Endo Pharmaceuticals Inc. paid the most, $120.
General payments to Dr. Weekes by program year, 2016 to 2018
General payments to Dr. Weekes by kind, 2016 to 2018
- Food and beverage$57199%
- Education$31%
Companies that paid Dr. Weekes the most, 2016 to 2018
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Arnold A. Weekes graduated from Lewis Katz School of Medicine
Dr. Weekes graduated from Lewis Katz School of Medicine in 1999.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Dr. Arnold A. Weekes accepts plans from 5 insurance carriers
Dr. Weekes is in network with 5 carriers, including Elevance, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
- Elevance
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
Plan types Dr. Weekes accepts, by number of carriers
- HMO3
- POS3
- EPO2
- Medicare2
- PPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Arnold A. Weekes'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) |
| 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 Dr. Arnold A. Weekes
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. Arnold A. Weekes' NPI number?
Dr. Arnold A. Weekes' NPI number is 1023057833. It was assigned on June 6, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Arnold A. Weekes?
Dr. Arnold A. Weekes is an anesthesiologist in Antioch, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. Arnold A. Weekes practice?
Dr. Weekes practices at 3901 Lone Tree Way, Antioch, CA 94509. Dr. Weekes' primary practice is Sutter Delta Medical Center in Antioch, California, part of Sutter Health. Dmand AI also links Dr. Weekes to 3 medical groups, 2 group practices and clinics and 1 ambulatory surgery center.
What is Dr. Arnold A. Weekes' office phone number?
The practice phone on file for Dr. Weekes is (925) 779-7200.
What is Dr. Arnold A. Weekes' medical license number?
Dr. Weekes holds California license 775521, one of the licenses on file in 4 states.
Which states has Dr. Arnold A. Weekes been licensed in?
Dmand AI has state licenses on file for Dr. Weekes in California (2004 to 2026), New York (2006 to 2019), Maryland (2006 to 2009) and New Jersey (2005 to 2009).
Which hospitals is Dr. Arnold A. Weekes affiliated with?
Dr. Weekes practices at Sutter Delta Medical Center in Antioch, California.
What medical group is Dr. Arnold A. Weekes part of?
Dr. Weekes is linked to Palo Alto Foundation Medical Group. Dmand AI links Dr. Weekes to 3 more medical groups.
Does Dr. Arnold A. Weekes accept Medicare?
Yes. CMS data shows Dr. Weekes billed Medicare for 149 services in 2024, and Dr. Weekes accepts Medicare assignment.
How many Medicare patients does Dr. Arnold A. Weekes see?
CMS counts 221 Medicare patients who saw Dr. Weekes in 2024, with an average age of 73.
Show 7 more questionsShow fewer questions
Is Dr. Arnold A. Weekes board certified?
Yes. Dr. Weekes is board certified in anesthesiology by the American Board of Anesthesiology.
What services does Dr. Arnold A. Weekes bill to Medicare?
In 2024, Dr. Weekes' most billed Medicare services were anesthesia (00731), anesthesia (00811) and anesthesia (00813).
Where did Dr. Arnold A. Weekes go to medical school?
Dr. Weekes graduated from Lewis Katz School of Medicine in 1999.
What drugs does Dr. Arnold A. Weekes prescribe most?
In 2019 Medicare Part D data, Dr. Weekes' most prescribed drugs by claims were Hydrocodone-Acetaminophen, Duloxetine HCl and Gabapentin.
Has Dr. Arnold A. Weekes received payments from drug or device companies?
CMS Open Payments shows $575 in general payments to Dr. Weekes from 8 companies from 2016 to 2018. The largest total came from Endo Pharmaceuticals Inc.
How long has Dr. Arnold A. Weekes been practicing?
Dr. Weekes graduated from medical school in 1999, 27 years ago.
What insurance does Dr. Arnold A. Weekes accept?
Dr. Weekes is in network with 5 carriers, including Elevance, Blue Cross Blue Shield of Michigan and United Healthcare. HMO plans come from the most carriers, 3. Check the plan with the practice before a visit.
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