DIEGO VALENZUELA INZUNZA
NPI 1336617174
Physician Assistant in Castro Valley, CA
NPI Status: Active since November 09, 2018
Contact Information
20642 JOHN DR
CASTRO VALLEY, CA
ZIP 94546
Phone: (510) 581-2559
- Individual
- Male
- Physician Assistant
- PECOS Enrolled
About DIEGO INZUNZA
This page provides the complete NPI Profile along with additional information for Diego Inzunza, a primary care provider established in Castro Valley, California with a medical specialization in Physician Assistant. The healthcare provider is registered in the NPI registry with number 1336617174 assigned on November 2018. The practitioner's primary taxonomy code is 363A00000X with license number 56818 (CA). The provider is registered as an individual and his NPI record was last updated 4 years ago.
- NPI
- 1336617174
- Provider Name
- DIEGO VALENZUELA INZUNZA
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 20642 JOHN DR CASTRO VALLEY, CA 94546
- Location Phone
- (510) 581-2559
- Mailing Address
- 20642 JOHN DR CASTRO VALLEY, CA 94546
- Mailing Phone
- (510) 581-2559
- Is Sole Proprietor?
- No
- Enumeration Date
- 11-09-2018
- Last Update Date
- 12-17-2021
- Code Navigator
A primary care provider (PCP) like Diego Inzunza 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
Secondary Locations
- 3100 Telegraph Ave
Oakland, CA 94609
(800) 607-6377
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
- Taxonomy Code
- 363A00000X
- Type
- Physician Assistants & Advanced Practice Nursing Providers
- License No.
- 56818
- License State
- CA
- Taxonomy Description
- A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.
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 | 363A00000X | Physician Assistants & Advanced Practice Nursing Providers | Physician Assistant | (CA) |
Medicare Participation & PECOS Enrollment Status
Diego Inzunza 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.
Adm sarscov2 30mcg/0.3ml 3rd
Adm sarscov2 50mcg/0.25mlbst
Adm sarscv2 30mcg trs-sucr 3
Automated urinalysis test
Established patient office or other outpatient visit, 20-29 minutes
Established patient office or other outpatient visit, 30-39 minutes
Intramuscular administration of single severe acute respiratory syndrome coronavirus 2 (covid-19) vaccine, mrna-lnp, spike protein, preservative free, 30 mcg/0.3ml dosage, diluent reconstituted; first dose
New patient office or other outpatient visit, 15-29 minutes
New patient office or other outpatient visit, 30-44 minutes
New patient office or other outpatient visit, 45-59 minutes
This refers to the administration of a 30 microgram dose of a SARS-CoV-2 vaccine in a 0.3 milliliter volume. It's the third dose, often referred to as a booster shot, which helps to strengthen your body's immune response against the COVID-19 virus.
This service was performed 40 times for 40 patientsThis procedure involves administering a dose of a SARS-CoV-2 vaccine. The specific dosage is 50 micrograms in a 0.25 milliliter booster shot. This vaccine helps your body build immunity against the COVID-19 virus. It's a key part of global efforts to control the pandemic.
This service was performed 179 times for 179 patientsThis refers to the administration of a 30 microgram dosage of the SARS-CoV-2 vaccine, which helps protect against COVID-19. The 'trs-sucr 3' part indicates it's stabilized with a sugar solution. This vaccine helps your immune system fight off the virus if you're exposed.
This service was performed 35 times for 35 patientsAn automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
This service was performed 20 times for 17 patientsThis 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.
This service was performed 46 times for 44 patientsThis 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.
This service was performed 72 times for 66 patientsThis is your first dose of a COVID-19 vaccine. It's a shot given in the muscle, usually the arm. The vaccine uses mRNA technology to help your body recognize and fight the virus. It's preservative free and contains 30 mcg in a 0.3ml dose.
This service was performed 12 times for 12 patientsThis service involves an initial visit to the doctor's office or other outpatient setting. It typically lasts between 15-29 minutes. The doctor will review your medical history, conduct a physical examination, and discuss your health concerns. It's a chance to establish your health baseline and address any immediate medical issues.
This service was performed 14 times for 14 patientsThis 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.
This service was performed 15 times for 15 patientsThis 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.
This service was performed 92 times for 92 patientsPhysician 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 94546 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99203
- Average New Patient Price $104.51
- Minimum New Patient Price $69
- Maximum New Patient Price $202.35
- Average New Patient Copayment $26.12
- Minimum New Patient Copayment $17.25
- Maximum New Patient Copayment $50.58
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99213
- Average Established Patient Price $84.91
- Minimum Established Patient Price $23.44
- Maximum Established Patient Price $166.46
- Average Established Patient Copayment $21.22
- Minimum Established Patient Copayment $5.86
- Maximum Established Patient Copayment $41.61
* 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 | 3 | 3 | 6 | 6 | 1 | 7 | 1 | 7 | 4 |
Step 1: Double the value of the alternate digits, beginning with the rightmost digit. | |||||||||
2 | 3 | 6 | 6 | 12 | 1 | 14 | 1 | 14 | |
Step 2: Add all the doubled and unaffected individual digits from step 1 plus the constant number 24. | |||||||||
2 + 3 + 6 + 6 + 1 + 2 + 1 + 1 + 4 + 1 + 1 + 4 + 24 = 56 | |||||||||
Step 3: Subtract the total obtained in step 2 from the next higher number ending in zero, the result is the check digit. | |||||||||
60 - 56 = 4 | 4 |
The NPI number 1336617174 is valid because the calculated check digit 4 using the Luhn validation algorithm matches the last digit of the original NPI number.
Other Providers at the Same Location
The following 19 providers are registered at the same or nearby location.
NPI | Name / Type | Taxonomy | Address |
---|---|---|---|
1831668987 | CHRISTINA PHAN PA Individual | Physician Assistant | 20642 JOHN DR CASTRO VALLEY, CA 94546 (888) 924-1036 |
1679079065 | ANA M BERMUDEZ Individual | Obstetrics & Gynecology | 20642 JOHN DR CASTRO VALLEY, CA 94546 (510) 785-5000 |
1720480049 | CORINA SCHEEL CLARK P.A. Individual | Physician Assistant | 20642 JOHN DR CASTRO VALLEY, CA 94546 (510) 785-5000 |
1457309783 | DR. JAYA KARNANI MD Individual | Family Medicine | 20642 JOHN DR CASTRO VALLEY, CA 94546 (510) 785-5000 |
1164459947 | DR. KALAOKALANI CHANDLER M.D. Individual | Obstetrics & Gynecology | 20642 JOHN DR CASTRO VALLEY, CA 94546 (510) 785-5000 |
1932201977 | MICHELLE LAI WONG PA-C Individual | Physician Assistant | 20642 JOHN DR CASTRO VALLEY, CA 94546 (510) 785-5000 |
1497316608 | AMANDA MERCEDES YEE MD Individual | Obstetrics & Gynecology | 20642 JOHN DR CASTRO VALLEY, CA 94546 (510) 785-5000 |
1083298178 | ZACHARY GERARD O'LEARY PA-C Individual | Physician Assistant | 20642 JOHN DR CASTRO VALLEY, CA 94546 (888) 924-1036 |
1285811489 | NIDHI JOHRI M.D Individual | Internal Medicine | 20642 JOHN DR CASTRO VALLEY, CA 94546 (510) 785-5000 |
1437417029 | CHRISTOPHER ARTHUR MOORE MD Individual | Family Medicine | 20642 JOHN DR CASTRO VALLEY, CA 94546 (510) 785-5000 |
1073684429 | LING XU M.D. Individual | Internal Medicine | 20642 JOHN DR CASTRO VALLEY, CA 94546 (510) 785-5000 |
1003270877 | HELEN WOOHEE YANG MD Individual | Internal Medicine | 20642 JOHN DR CASTRO VALLEY, CA 94546 (510) 806-2100 |
1265664940 | NARJES FERJANI MD Individual | Family Medicine | 20642 JOHN DR CASTRO VALLEY, CA 94546 (510) 581-2559 |
1659807154 | CRISTINA GESMUNDO DO Individual | Family Medicine | 20642 JOHN DR CASTRO VALLEY, CA 94546 (510) 581-2259 |
1932138427 | RONALD ALAN HULL D.P.M Individual | Podiatrist (Foot & Ankle Surgery) | 20642 JOHN DR CASTRO VALLEY, CA 94546 (510) 581-2559 |
1134647654 | CHRISTINA K LEE PA-C Individual | Physician Assistant | 20642 JOHN DR CASTRO VALLEY, CA 94546 (510) 581-2559 |
1962907840 | ASHLEY ROSE ETCHISON MD Individual | Radiology (Diagnostic Radiology) | 20642 JOHN DR CASTRO VALLEY, CA 94546 (510) 785-5000 |
1336677186 | SAMUEL HAILEMARIAM FANTAYE MD Individual | Internal Medicine (Endocrinology, Diabetes & Metabolism) | 20642 JOHN DR CASTRO VALLEY, CA 94546 (510) 857-2559 |
1396747721 | STANLEY ANDREW TAN MD Individual | Internal Medicine (Endocrinology, Diabetes & Metabolism) | 20642 JOHN DR CASTRO VALLEY, CA 94546 (510) 785-5000 |
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1336617174, enumerated in the NPI registry as an "individual" on November 09, 2018
The provider is located at 20642 John Dr Castro Valley, Ca 94546 and the phone number is (510) 581-2559
The provider's speciality is Physician Assistant with taxonomy code 363A00000X
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 $104.51 with an average copayment of $26.12 for new patient appointments. Established patients should expect a typical charge of $84.91 and an average copayment of 21.22. Please review your insurance plan or contact the provider directly to determine your specific costs.
The most common procedures or services performed by this practitioner are: Adm sarscov2 30mcg/0.3ml 3rd, Adm sarscov2 50mcg/0.25mlbst, Adm sarscv2 30mcg trs-sucr 3, Automated urinalysis test, Established patient office or other outpatient visit, 20-29 minutes, Established patient office or other outpatient visit, 30-39 minutes, Intramuscular administration of single severe acute respiratory syndrome coronavirus 2 (covid-19) vaccine, mrna-lnp, spike protein, preservative free, 30 mcg/0.3ml dosage, diluent reconstituted; first dose, New patient office or other outpatient visit, 15-29 minutes, New patient office or other outpatient visit, 30-44 minutes and New patient office or other outpatient visit, 45-59 minutes.
This NPI record was last updated on November 09, 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].
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