1. Home
  2. Directory
  3. California
  4. Woodland Hills
  5. Anesthesiology
  6. NPI Profile

WILLIAM PARK MD
NPI 1083061154
Anesthesiology in Woodland Hills, CA

Active since May 18, 2016PECOS EnrolledAccepts Medicare Assignment
75/100
CMS Quality Rating
5601 DE SOTO AVE, WOODLAND HILLS, CA 91367(833) 574-2273 Get Directions Write a Review

NPPES record last updated: May 13, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: May 13, 2026, Nov 19, 2025, Jul 4, 2025 and 2 more (5 updates tracked since 2016).

About William Park Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

WILLIAM PARK MD (NPI 1083061154) is an individual anesthesiology provider in Woodland Hills, California, licensed in California (A186058) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, is affiliated with Advocate Sherman Hospital, and maintains a secondary practice location in Elgin.

NPPES Registry Identity

NPI1083061154
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NameWILLIAM PARKCredential: MD
Location Address5601 DE SOTO AVEWoodland Hills, CA 91367-6701
Mailing Address5601 De Soto AveWoodland Hills, CA 91367-6701
Phone(833) 574-2273
Sole ProprietorNo
Medical School CMSR Franklin University Of Med & Sci/chicago Medical SchoolGraduated 2016
Enumeration DateMay 18, 2016
Last NPPES UpdateMay 13, 20265 updates tracked since enumeration
NPPES CertifiedMay 13, 2026
✔ NPI 1083061154 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in CA · A186058
Definition
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.
Also ListedAnesthesiology · Pain MedicineTaxonomy 207LP2900X · License 21206 (NV)
5601 DE SOTO AVE, Woodland Hills, CA 91367
Open in Google Maps ↗

Secondary Practice Location 1

Location 11425 N Randall RdElgin, IL 60123-2300 · Phone (847) 742-9800

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health Plan, Inc..Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

William Park Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7214221803
PECOS Enrollment IDI20260106002136
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

3

Medicare enrollment records show William Park reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Southern California Permanente Medical Group
Same address
Health Maintenance Organization
5601 DE SOTO AVE
Woodland Hills, CA 91367
  • Reassigned Medicare billing, California enrollment
  • Also billed through NPI 1396287082 (California)
  • 13,921 clinicians in this Medicare group
NPI 1952333478 (818) 719-2000
Banner Hospital Based Physicians Arizona LLC
399 mi
Multi-Specialty
1900 N HIGLEY RD
Gilbert, AZ 85234
  • Reassigned Medicare billing, Arizona enrollment
  • 1,081 clinicians in this Medicare group
NPI 1124374822 (480) 543-2034
Advocate Health And Hospitals Corp.
1,665 mi
Medicare Defined Swing Bed Unit
101 S MAJOR ST
Eureka, IL 61530
  • Reassigned Medicare billing, Illinois enrollment
  • 4,870 clinicians in this Medicare group
NPI 1295066983 (309) 467-2371

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 8

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
132 services132 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
119 services106 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
105 services88 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
89 services89 patients
Injection of lower or sacral spine facet joint using imaging guidance, single level 64493
This procedure involves injecting medication into the facet joint in your lower back or sacral spine. It's done under imaging guidance to ensure accuracy. The aim is to alleviate pain and inflammation. It's a safe, often effective method for managing spinal discomfort.
37 services25 patients
Injection of lower or sacral spine facet joint using imaging guidance, second level 64494
This procedure involves injecting medication into the facet joints of your lower or sacral spine to manage pain. Imaging guidance ensures accurate placement. It's the second level, meaning it's done on two different joint levels.
37 services25 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Advocate Sherman Hospital

Acute Care Hospitals · Elgin, IL
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number140030
Location1425 North Randall RoadElgin, IL 60123 · Kane County
Emergency services Birthing friendly

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

TIMOTHY STARR MPT
Physical Therapist (Orthopedic)
5601 DE SOTO AVE, PHYSICAL THERAPY DEPARTMENT
WOODLAND HILLS, CA 91367
Los Angeles County (818) 719-2930
MS. BONNIE JILL WEISSMAN P.T.A.
Technician, Other
5601 DE SOTO AVE
WOODLAND HILLS, CA 91367
Los Angeles County (818) 719-3958
MANO SHANAA M.D.
Anesthesiology
5601 DE SOTO AVE, DEPT OF ANESTHESIA
WOODLAND HILLS, CA 91367
Los Angeles County (818) 719-2261
DONNA M KARY CRNA
Nurse Anesthetist, Certified Registered
5601 DE SOTO AVE
WOODLAND HILLS, CA 91367
Los Angeles County (818) 719-2000
PAULA MONAGHAN CNM
Advanced Practice Midwife
5601 DE SOTO AVE
WOODLAND HILLS, CA 91367
Los Angeles County (818) 719-2000
DEAN T. NORA MD
Surgery (Surgical Oncology)
5601 DE SOTO AVE
WOODLAND HILLS, CA 91367
Los Angeles County (818) 719-2000
MARGARET M. STONE MD
Pediatrics (Pediatric Infectious Diseases)
5601 DE SOTO AVE
WOODLAND HILLS, CA 91367
Los Angeles County (818) 719-2000
KARIN L NIELSEN PA
Physician Assistant
5601 DE SOTO AVE
WOODLAND HILLS, CA 91367
Los Angeles County (818) 719-2000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Park's NPI number?

The NPI number for William Park is 1083061154. It was assigned to this individual provider in the NPPES registry on May 18, 2016.

Where is William Park located?

William Park practices at 5601 De Soto Ave, Woodland Hills, CA 91367. The listed phone number is (833) 574-2273.

What is William Park's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is William Park enrolled in Medicare?

Yes. William Park is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for William Park's services?

According to the CMS Revalidation Reassignment List (October 2026 release), William Park reassigns Medicare benefits to 3 organizations: Southern California Permanente Medical Group (Woodland Hills, CA), Banner Hospital Based Physicians Arizona LLC (Gilbert, AZ) and Advocate Health And Hospitals Corp. (Eureka, IL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for William Park's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does William Park accept?

Health plans from Oscar Health Plan, Inc. list William Park as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is William Park affiliated with any hospitals?

According to CMS data, William Park is affiliated with Advocate Sherman Hospital.

When was this NPI record last updated?

The NPPES record for William Park was last updated on May 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.