JANET WILLIAM NP
NPI 1821505587
Nurse Practitioner in Cerritos, CA
NPI Status: Active since January 03, 2018
Contact Information
18000 STUDEBAKER RD STE 800
CERRITOS, CA
ZIP 90703
Phone: (562) 735-3226
- Individual
- Female
- Nurse Practitioner
- PECOS Enrolled
About JANET WILLIAM
This page provides the complete NPI Profile along with additional information for Janet William, a provider established in Cerritos, California with a medical specialization in Nurse Practitioner. The healthcare provider is registered in the NPI registry with number 1821505587 assigned on January 2018. The practitioner's primary taxonomy code is 363L00000X with license number NP95007086 (CA). The provider is registered as an individual and her NPI record was last updated 5 years ago.
- NPI
- 1821505587
- Provider Name
- JANET WILLIAM NP
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703
- Location Phone
- (562) 735-3226
- Mailing Address
- 401 E HIGHLAND AVE STE C SAN BERNARDINO, CA 92404
- Mailing Phone
- (562) 735-3226
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 01-03-2018
- Last Update Date
- 05-12-2020
- Code Navigator
A nurse practitioner (NP) like Janet William is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, etc.
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
Nurse Practitioner
- Taxonomy Code
- 363L00000X
- Type
- Physician Assistants & Advanced Practice Nursing Providers
- License No.
- NP95007086
- License State
- CA
- Taxonomy Description
- (1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
Medicare Participation & PECOS Enrollment Status
Janet William 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
Physician Visit Costs
The pricing information below displays the copayment minimum, maximum and average amount that patients under Medicare are charged when visiting this provider as a new or established patient. Please keep in mind that these prices are just for reference purposes, and the actual prices charged by the provider might be different.
For patients covered under private health plans the prices below are also useful as healthcare pricing for private insurance is usually established as a function of Medicare prices. Private insurance covered patients should check their individual plans to determine the exact pricing.
The prices below reflect the costs for new and established patients in the 90703 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99203
- Average New Patient Price $96.36
- Minimum New Patient Price $62.96
- Maximum New Patient Price $187.6
- Average New Patient Copayment $24.09
- Minimum New Patient Copayment $15.74
- Maximum New Patient Copayment $46.9
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99214
- Average Established Patient Price $109.96
- Minimum Established Patient Price $20.84
- Maximum Established Patient Price $153.61
- Average Established Patient Copayment $27.49
- Minimum Established Patient Copayment $5.21
- Maximum Established Patient Copayment $38.4
* The physician office visit costs information is generated by statistical analysis of similar providers in the same geographical area. The pricing information above IS NOT the amount charged by this provider.
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NPI Validation Check Digit Calculation
The following table explains the step by step NPI number validation process using the ISO standard Luhn algorithm.
| Start with the original NPI number, the last digit is the check digit and is not used in the calculation. | |||||||||
| 1 | 8 | 2 | 1 | 5 | 0 | 5 | 5 | 8 | 7 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 8 | 4 | 1 | 10 | 0 | 10 | 5 | 16 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 8 + 4 + 1 + 1 + 0 + 0 + 1 + 0 + 5 + 1 + 6 + 24 = 53 | |||||||||
| Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
| 60 - 53 = 7 | 7 | ||||||||
The NPI number 1821505587 is valid because the calculated check digit 7 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 17 providers are registered at the same or nearby location.
| NPI | Name / Type | Taxonomy | Address |
|---|---|---|---|
| 1457793051 | DR. WILBUR N MONTANA DO Individual | Internal Medicine (Hematology & Oncology) | 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703 (562) 735-3226 |
| 1881926939 | SERGIO G ARANCIBIA Individual | Nurse Practitioner (Family) | 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703 (562) 735-3226 |
| 1447298633 | JUAN E SANCHEZ MD Individual | Internal Medicine (Hematology & Oncology) | 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703 (562) 735-3226 |
| 1659716959 | DR. BABAK BASERI M.D. Individual | Internal Medicine (Hematology & Oncology) | 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703 (562) 735-3226 |
| 1083935878 | DR. ALI BAGHIAN M.D Individual | Internal Medicine (Hematology & Oncology) | 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703 (562) 735-3226 |
| 1790190429 | JOHN KHOURY MD Individual | Internal Medicine (Hematology & Oncology) | 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703 (562) 735-3226 |
| 1437402989 | MS. ALICIA ANN ALEXANDER MS,PA-C Individual | Physician Assistant | 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703 (562) 735-3226 |
| 1962760074 | DR. PAUL F. LA PORTE M.D., PH.D. Individual | Internal Medicine (Hematology & Oncology) | 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703 (562) 735-3226 |
| 1851801443 | MR. ERIC ZYWICKI Individual | Nurse Practitioner (Family) | 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703 (562) 735-3226 |
| 1306318225 | LOUIS SITHU Individual | Nurse Practitioner (Primary Care) | 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703 (562) 735-3226 |
| 1194290411 | JOSEPHINE ASSINI-STRUCK Individual | Nurse Practitioner (Acute Care) | 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703 (562) 735-3226 |
| 1801153747 | FARAH QUYYUMI M.D. Individual | Internal Medicine (Hematology & Oncology) | 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703 (562) 735-3226 |
| 1871948950 | HIROSHI YAMAGATA MD Individual | Internal Medicine (Hematology & Oncology) | 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703 (562) 735-3226 |
| 1861924391 | TARAS BENZAR MD Individual | Internal Medicine (Hematology & Oncology) | 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703 (562) 735-3226 |
| 1831695667 | DO YOUNG KIM MBBS Individual | Internal Medicine (Medical Oncology) | 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703 (562) 735-3226 |
| 1144744772 | DR. ARLENE LEDESMA YU MD, MBA Individual | Internal Medicine (Medical Oncology) | 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703 (562) 735-3226 |
| 1487030656 | ADAMMA THERESA AMADI FNP Individual | Nurse Practitioner (Primary Care) | 18000 STUDEBAKER RD STE 800 CERRITOS, CA 90703 (213) 628-6539 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1821505587, enumerated in the NPI registry as an "individual" on January 03, 2018
The provider is located at 18000 Studebaker Rd Ste 800 Cerritos, Ca 90703 and the phone number is (562) 735-3226
The provider's speciality is Nurse Practitioner with taxonomy code 363L00000X
Yes, as of June 20, 2025 the provider is registered in PECOS and is eligible to order health care services or supplies for Medicare patients. If you are a beneficiary 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.
Medicare beneficiaries should expect a typical cost of $96.36 with an average copayment of $24.09 for new patient appointments. Established patients should expect a typical charge of $109.96 and an average copayment of 27.49. Please review your insurance plan or contact the provider directly to determine your specific costs.
This NPI record was last updated on January 03, 2018. To officially update your NPI information contact the National Plan and Provider Enumeration System (NPPES) at 1-800-465-3203 (NPI Toll-Free) or by email at [email protected].
NPI Profile data is regularly updated with the latest NPI registry information, if you would like to update or remove your NPI Profile in this website please contact us.