Dr. William G. Maxwell, MD
- Medicare services, 2024
- 81
- Medicare patients, 2024
- 206
- Hospital affiliations
- 1
- Industry payments
- $217
- Medical group
- 1
- Practice address
- 354 Santa Fe Drive, Encinitas, CA 92024
- Practice phone
- Call (760) 753-6501
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Maxwell's 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. William G. Maxwell is an anesthesiologist in Encinitas, California
Dr. Maxwell practices at Scripps Memorial Hospital Encinitas in Encinitas, California, part of Scripps Health.
Dr. Maxwell's NPI, 1619948031, was assigned on February 1, 2006. Dr. Maxwell graduated from UC Davis School of Medicine in 1992. Dr. Maxwell holds California license G78744.
- NPI
- 1619948031NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2769433978
- NPI enumeration date
- February 1, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (760) 753-6501
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 60
- Medical school graduation
- 1992
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. William G. Maxwell practices at Scripps Memorial Hospital Encinitas in Encinitas, California
Dr. Maxwell's primary practice is Scripps Memorial Hospital Encinitas, at 354 Santa Fe Drive, Encinitas, CA 92024 in San Diego County. The practice phone is (760) 753-6501.
- Scripps Memorial Hospital Encinitas354 Santa Fe Drive, Encinitas, CA 92024 · San Diego CountyPhone(760) 753-6501
Source: Dmand AI Affiliation Data
Dr. William G. Maxwell is affiliated with 2 sites of care and 1 medical group
Dr. Maxwell's primary practice is Scripps Memorial Hospital Encinitas in Encinitas, California, part of Scripps Health. The medical group on file is Anesthesia Service Medical Group (ASMG). Dmand AI also links Dr. Maxwell to 1 more group practice or clinic, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. William G. Maxwell's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Maxwell practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Scripps Memorial Hospital Encinitas | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. William G. Maxwell is one of 6,593 anesthesiologists in California
Anesthesiology is Dr. Maxwell's primary specialty in the NPI Registry, under taxonomy code 207L00000X. Dr. Maxwell is board certified in anesthesiology by the American Board of Anesthesiology. Dr. Maxwell is licensed in California.
Specialties and state licenses
- Anesthesiology, CaliforniaPrimary
Anesthesiologists near Dr. Maxwell
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. William G. Maxwell billed Medicare for 81 services in 2024
CMS data shows 81 Medicare services from Dr. Maxwell across 5 procedure codes in 2024, for 206 Medicare patients. Medicare paid $10,699 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Maxwell's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Anesthesia
- 2023: 522024: 568%
- Surgery
- 2023: 02024: 25
Dr. Maxwell compared with the California median for anesthesiologists, 2024
- Dr. Maxwell
- California median
- Medicare services
- 81vs 7213% above
- Medicare patients
- 206vs 14344% above
Medians across 5,562 anesthesiologists in California with Dmand AI profiles that report each measure.
Dr. Maxwell'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 Dr. Maxwell?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Maxwell and other anesthesiologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. William G. Maxwell treated 206 Medicare patients in 2024, average age 75
CMS counts 206 Medicare patients who saw Dr. Maxwell in 2024. The largest group is 65 to 74, with 95 patients. 73% of them have high cholesterol, and 69% have high blood pressure. 12% are also on Medicaid. Their average risk score is 1.45, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Maxwell's median patient age at 55, with 55% women.
Dr. Maxwell's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Maxwell's Medicare patients by sex, 2024
- Women11053%
- Men9647%
Chronic conditions among Dr. Maxwell's Medicare patients, 2024
- High cholesterol73%
- High blood pressure69%
- Arthritis51%
- Mood disorders33%
- Cancer32%
- Chronic kidney disease32%
- Depression31%
- Ischemic heart disease28%
Share of Medicare patients with each condition. A patient can have several.
Dr. Maxwell's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
How Dr. William G. Maxwell takes part in Medicare
Dr. Maxwell 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. William G. Maxwell received $217 in industry payments from 2019 to 2021
CMS Open Payments shows 2 general payments to Dr. Maxwell from 2 drug and device companies from 2019 to 2021. Food and beverage make up the largest share, 100% of the total. Heron Therapeutics, Inc. paid the most, $122.
General payments to Dr. Maxwell by program year, 2019 to 2021
Companies that paid Dr. Maxwell the most, 2019 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. William G. Maxwell graduated from UC Davis School of Medicine
Dr. Maxwell graduated from UC Davis School of Medicine in 1992.
- Medical school
- Board certified in anesthesiology
Source: Dmand AI Professional Profile Data
Dr. William G. Maxwell accepts plans from 7 insurance carriers
Dr. Maxwell is in network with 7 carriers, including United Healthcare, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- Elevance
Plan types Dr. Maxwell accepts, by number of carriers
- Medicare4
- PPO4
- POS2
- EPO1
- HMO1
Source: Dmand AI Insurance Network Data
Sources for Dr. William G. Maxwell'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) |
| 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. William G. Maxwell
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 G. Maxwell's NPI number?
Dr. William G. Maxwell's NPI number is 1619948031. It was assigned on February 1, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. William G. Maxwell?
Dr. William G. Maxwell is an anesthesiologist in Encinitas, California. The primary specialty in the NPI Registry is Anesthesiology Physician (taxonomy code 207L00000X).
Where does Dr. William G. Maxwell practice?
Dr. Maxwell practices at 354 Santa Fe Drive, Encinitas, CA 92024. Dr. Maxwell's primary practice is Scripps Memorial Hospital Encinitas in Encinitas, California, part of Scripps Health. Dmand AI also links Dr. Maxwell to 1 group practice or clinic.
What is Dr. William G. Maxwell's office phone number?
The practice phone on file for Dr. Maxwell is (760) 753-6501.
What is Dr. William G. Maxwell's medical license number?
Dr. Maxwell holds California license G78744.
Which hospitals is Dr. William G. Maxwell affiliated with?
Dr. Maxwell practices at Scripps Memorial Hospital Encinitas in Encinitas, California.
What medical group is Dr. William G. Maxwell part of?
Dr. Maxwell is linked to Anesthesia Service Medical Group (ASMG).
Does Dr. William G. Maxwell accept Medicare?
Yes. CMS data shows Dr. Maxwell billed Medicare for 81 services in 2024, and Dr. Maxwell accepts Medicare assignment.
How many Medicare patients does Dr. William G. Maxwell see?
CMS counts 206 Medicare patients who saw Dr. Maxwell in 2024, with an average age of 75.
Is Dr. William G. Maxwell board certified?
Yes. Dr. Maxwell is board certified in anesthesiology by the American Board of Anesthesiology.
Show 5 more questionsShow fewer questions
What services does Dr. William G. Maxwell bill to Medicare?
In 2024, Dr. Maxwell's most billed Medicare services were anesthesia (00142), anesthesia (00520) and anesthesia (00790).
Where did Dr. William G. Maxwell go to medical school?
Dr. Maxwell graduated from UC Davis School of Medicine in 1992.
Has Dr. William G. Maxwell received payments from drug or device companies?
CMS Open Payments shows $217 in general payments to Dr. Maxwell from 2 companies from 2019 to 2021. The largest total came from Heron Therapeutics, Inc.
How long has Dr. William G. Maxwell been practicing?
Dr. Maxwell graduated from medical school in 1992, 34 years ago.
What insurance does Dr. William G. Maxwell accept?
Dr. Maxwell is in network with 7 carriers, including United Healthcare, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 4. Check the plan with the practice before a visit.
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