MR. STEPHEN CHRISTOPHER WOO PA-C
NPI 1609912690
Physician Assistant - Medical in San Gabriel, CA
NPI Status: Active since January 29, 2007
Contact Information
438 EAST LAS TUNAS DR.
SAN GABRIEL, CA
ZIP 91776
Phone: (626) 289-5461
- Individual
- Male
- Physician Assistant
- Medical
- PECOS Enrolled
About STEPHEN WOO
This page provides the complete NPI Profile along with additional information for Stephen Woo, a primary care provider established in San Gabriel, California with a medical specialization in Physician Assistant, focusing in medical . The healthcare provider is registered in the NPI registry with number 1609912690 assigned on January 2007. The practitioner's primary taxonomy code is 363AM0700X with license number PA18159 (CA). The provider is registered as an individual and his NPI record was last updated 18 years ago.
- NPI
- 1609912690
- Provider Name
- MR. STEPHEN CHRISTOPHER WOO PA-C
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 438 EAST LAS TUNAS DR. SAN GABRIEL, CA 91776
- Location Phone
- (626) 289-5461
- Mailing Address
- 550 CAMINO VERDE SOUTH PASADENA, CA 91030
- Mailing Phone
- (626) 221-1663
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 01-29-2007
- Last Update Date
- 07-08-2007
- Code Navigator
A primary care provider (PCP) like Stephen Woo sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, 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
Physician Assistant Medical
- Taxonomy Code
- 363AM0700X
- Type
- Physician Assistants & Advanced Practice Nursing Providers
- License No.
- PA18159
- License State
- CA
Medicare Participation & PECOS Enrollment Status
Stephen Woo 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.
Emergency department visit for problem of high severity
Emergency department visit for problem of moderate severity
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
This service was performed 33 times for 32 patientsAn emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.
This service was performed 51 times for 48 patientsReviews for MR. STEPHEN CHRISTOPHER WOO PA-C
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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 | 6 | 0 | 9 | 9 | 1 | 2 | 6 | 9 | 0 |
| Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
| 2 | 6 | 0 | 9 | 18 | 1 | 4 | 6 | 18 | |
| Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
| 2 + 6 + 0 + 9 + 1 + 8 + 1 + 4 + 6 + 1 + 8 + 24 = 70 | |||||||||
| Step 3: because the number obtained in step 2 ends in zero, the check digit is zero. | |||||||||
| 0 | |||||||||
The NPI number 1609912690 is valid because the calculated check digit 0 using the Luhn validation algorithm matches the last digit of the original NPI number.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1609912690, enumerated in the NPI registry as an "individual" on January 29, 2007
The provider is located at 438 East Las Tunas Dr. San Gabriel, Ca 91776 and the phone number is (626) 289-5461
The provider's speciality is Physician Assistant with taxonomy code 363AM0700X with a focus in Medical
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.
The most common procedures or services performed by this practitioner are: Emergency department visit for problem of high severity and Emergency department visit for problem of moderate severity.
This NPI record was last updated on January 29, 2007. 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].
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