WILLIAM CHARLES FOX MD
NPI 1629465638
Anesthesiology in Sacramento, CA
NPI Status: Active since April 17, 2015
Contact Information
3315 WATT AVE
SACRAMENTO, CA
ZIP 95821
Phone: (916) 481-6800
Fax: (916) 481-1881
- Individual
- Male
- Anesthesiology
- Accepts Insurance
- PECOS Enrolled
About WILLIAM FOX
This page provides the complete NPI Profile along with additional information for William Fox, an anesthesiologist established in Sacramento, California with a medical specialization in Anesthesiology. The healthcare provider is registered in the NPI registry with number 1629465638 assigned on April 2015. The practitioner's primary taxonomy code is 207L00000X with license number C205991 (CA). The provider is registered as an individual and his NPI record was last updated January 2026. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization.
- NPI
- 1629465638
- Provider Name
- WILLIAM CHARLES FOX MD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 3315 WATT AVE SACRAMENTO, CA 95821
- Location Phone
- (916) 481-6800
- Location Fax
- (916) 481-1881
- Mailing Address
- 3315 WATT AVE SACRAMENTO, CA 95821
- Mailing Phone
- (916) 481-6800
- Mailing Fax
- (916) 481-1881
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 04-17-2015
- Last Update Date
- 01-15-2026
- Code Navigator
An anesthesiologist like William Fox manages the care of surgical patients and pain relief through drug administration that reduces or eliminates pain during an operation, medical procedure or during labor and delivery of babies. During surgical procedures anesthesiologists are responsible for adjusting the amount of anesthetic, monitoring the patient's heart rate, body temperature, blood pressure and breathing.
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Anesthesiology
- Taxonomy Code
- 207L00000X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- C205991
- License State
- CA
- Taxonomy Description
- An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 207L00000X | Allopathic & Osteopathic Physicians | Anesthesiology | MD-22875 (HI) |
Group Taxonomy 193400000X SINGLE SPECIALTY GROUP
This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Bronze 7500 $25 Generic Drugs - HMO
- Bronze 7500 $25 Generic Drugs + Adult Vision & Fitness - HMO
- Core Gold 1500 $10 Generic Drugs - HMO
- Core Gold 1500 $10 Generic Drugs + Adult Vision & Fitness - HMO
- Diabetes Gold 3000 $0 Chronic Care Drugs & Services - HMO
- Diabetes Gold 3000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness - HMO
- Diabetes Silver 5000 $0 Chronic Care Drugs & Services - HMO
- Diabetes Silver 5000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness - HMO
- Gold 2000 $15 Generic Drugs - HMO
- Gold 2000 $15 Generic Drugs + Adult Vision & Fitness - HMO
- HDHP Preventive Silver 5500 $0 Chronic Care Drugs - HMO
- Healthy Heart Gold 3000 $0 Chronic Care Drugs & Services - HMO
- Healthy Heart Gold 3000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness - HMO
- Healthy Heart Silver 5000 $0 Chronic Care Drugs & Services - HMO
- Healthy Heart Silver 5000 $0 Chronic Care Drugs & Services + Adult Vision & Fitness - HMO
- Low Deductible Silver 5000 $3 Generic Drugs - HMO
- Low Deductible Silver 5000 $3 Generic Drugs + Adult Vision & Fitness - HMO
- Low Premium Bronze 10600 $25 Generic Drugs - HMO
- Low Premium Bronze 10600 $25 Generic Drugs + Adult Vision & Fitness - HMO
- Low Premium Silver 6200 $3 Generic Drugs - HMO
- Medica Insure Bronze $0 Copay PCP Visits - EPO
- Medica Insure Bronze Premier - EPO
- Medica Insure Bronze Share - EPO
- Medica Insure Expanded Bronze Standard - EPO
- Medica Insure Gold $0 Copay PCP Visits - EPO
- Medica Insure Gold Share - EPO
- Medica Insure Gold Standard - EPO
- Medica Insure Silver $0 Copay PCP Visits - EPO
- Medica Insure Silver Share - EPO
- Medica Insure Silver Standard - EPO
- Bronze Classic 4700 - EPO
- Bronze Classic 4700 | MercyOne - EPO
- Bronze Classic Standard - EPO
- Bronze Classic Standard | MercyOne - EPO
- Bronze Elite + PCP Saver Plus - EPO
- Bronze Elite + PCP Saver Plus | MercyOne - EPO
- Bronze Simple Breathe Easy with Enhanced COPD Benefits | MercyOne - EPO
- Bronze Simple Chronic Care CKM | MercyOne - EPO
- Bronze Simple Diabetes | MercyOne - EPO
- Gold Classic Standard - EPO
- Gold Classic Standard | MercyOne - EPO
- Gold Elite - EPO
- Gold Elite | MercyOne - EPO
- Secure - EPO
- Secure | MercyOne - EPO
- Silver Classic - EPO
- Silver Classic | MercyOne - EPO
- Silver Classic Standard - EPO
- Silver Classic Standard | MercyOne - EPO
- Silver Simple Breathe Easy with Enhanced COPD Benefits | MercyOne - EPO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
William Fox is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging, Durable Medical Equipment (DME), a Home Health Agency (HHA) and Power Mobility Devices.
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): Yes
Eligible to Order or Refer Power Mobility Devices: Yes
Areas of Expertise
The following services and procedures, recently provided to Medicare patients, illustrate the range of care this provider offers. This list reflects the variety of services available to all patients visiting the practice and is based on 2022 Medicare dataset. In general, the more frequently a provider treats specific conditions or performs particular procedures, the more experienced they become in addressing similar patient needs. The provider has delivered many of the services listed below to Medicare patients. Please note that this list does not include services provided to patients who are not covered by Medicare.
Insertion of artery tube for blood sampling or infusion through skin
This procedure involves placing a small tube into an artery, usually in the wrist or elbow, to collect blood samples or administer medication. It's done under local anesthesia and is a common, safe practice.
This service was performed 11 times for 11 patientsReviews for WILLIAM CHARLES FOX MD
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1629465638, we treat the final digit (8) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 8).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 72 is 80. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1629465638, enumerated as an "individual" on April 17, 2015.
The provider is located at 3315 WATT AVE SACRAMENTO, CA 95821 and the phone number is (916) 481-6800.
Anesthesiology with taxonomy code 207L00000X.
The provider might be accepting Accepts: CareSource, Medica and Oscar Insurance Company. Please consult your insurance carrier or call the provider to verify.
