KRISTINA ELIZABETH HAWK MD/ PHD
NPI 1861784860
Radiology - Diagnostic Radiology in Stanford, CA
NPI Status: Active since May 09, 2011
Contact Information
300 PASTEUR DR
STANFORD, CA
ZIP 94305
Phone: (650) 723-4000
NPPES record last updated: February 10, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.
Record update history: Apr 9, 2024, Jul 27, 2022, Dec 21, 2018 and 1 more (4 updates tracked since 2018).
- Individual
- Female
- Years of Experience 21
- Radiology
- Diagnostic Radiology
- Accepts Insurance
- Accepts Medicare Approved Payment
- PECOS Enrolled
About KRISTINA HAWK
This page provides the complete NPI Profile along with additional information for Kristina Hawk, a provider established in Stanford, California with a medical specialization in Radiology, focusing in diagnostic radiology and more than 21 years of experience. The healthcare provider is registered in the NPI registry with number 1861784860 assigned on May 2011. The practitioner's primary taxonomy code is 2085R0202X with license number A125036 (CA). The provider is registered as an individual and her NPI record was last updated February 2026.
- NPI
- 1861784860
- Provider Name
- KRISTINA ELIZABETH HAWK MD/ PHD
- Other Name
- KRISTINA ELIZABETH BRAY
- Other Name Type
- Former Name (1)
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 300 PASTEUR DR STANFORD, CA 94305
- Location Phone
- (650) 723-4000
- Mailing Address
- 300 PASTEUR DR STANFORD, CA 94305
- Mailing Phone
- (650) 723-4000
- Medical School Name
- OTHER
- Graduation Year
- 2006
- Is Sole Proprietor?
- No
- Enumeration Date
- 05-09-2011
- Last Update Date
- 02-10-2026
- Code Navigator
Location Map
Secondary Locations
- 200 W Arbor Dr
San Diego, CA 92103
(800) 926-8273
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
Radiology Diagnostic Radiology
- Taxonomy Code
- 2085R0202X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- A125036
- License State
- CA
- Taxonomy Description
- A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
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 | 207U00000X | Allopathic & Osteopathic Physicians | Nuclear Medicine | A125036 (CA) |
| 2 | 2085N0904X | Allopathic & Osteopathic Physicians | Radiology | A125036 (CA) |
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Blue Advantage Bronze HMO? 204 - HMO
- Blue Advantage Bronze HMO? 301 - HMO
- Blue Advantage Bronze HMO? Standard - HMO
- Blue Advantage Gold HMO? 206 - HMO
- Blue Advantage Gold HMO? 603 - HMO
- Blue Advantage Gold HMO? Standard - HMO
- Blue Advantage Plus Bronze? 303 - POS
- Blue Advantage Plus Bronze? 305 - POS
- Blue Advantage Plus Bronze? Standard - POS
- Blue Advantage Plus Gold? 203 - POS
- Blue Advantage Plus Gold? 803 - POS
- Blue Advantage Plus Gold? Standard - POS
- Blue Advantage Plus Silver? 202 - POS
- Blue Advantage Plus Silver? 605 - POS
- Blue Advantage Plus Silver? Standard - POS
- Blue Advantage Security HMO? 200 - HMO
- Blue Advantage Silver HMO? 205 - HMO
- Blue Advantage Silver HMO? 801 - HMO
- Blue Advantage Silver HMO? Standard - HMO
- MyBlue Health Bronze? 402 - HMO
- Imperial Preferred Bronze - HMO
- Imperial Preferred Gold - HMO
- Imperial Preferred Gold Zero - HMO
- Imperial Preferred Silver - HMO
- Imperial Standard Bronze - HMO
- Imperial Standard Gold - HMO
- Imperial Standard Silver - HMO
- Bronze Classic 4700 - HMO
- Bronze Classic 4700 | with AdventHealth - HMO
- Bronze Classic Standard - HMO
- Bronze Classic Standard | with AdventHealth - HMO
- Bronze Elite + PCP Saver Plus - HMO
- Bronze Elite + PCP Saver Plus | with AdventHealth - HMO
- Bronze Simple Breathe Easy with Enhanced COPD Benefits - HMO
- Bronze Simple Chronic Care CKM - HMO
- Bronze Simple Diabetes - HMO
- Gold Classic Standard - HMO
- Gold Classic Standard | with AdventHealth - HMO
- Gold Elite Saver Plus | with AdventHealth - HMO
- Gold Simple - HMO
- Gold Simple | with AdventHealth - HMO
- Silver Classic Standard - HMO
- Silver Classic Standard | with AdventHealth - HMO
- Silver Elite - HMO
- Silver Elite | with AdventHealth - HMO
- Silver Simple Breathe Easy with Enhanced COPD Benefits - HMO
- Silver Simple Chronic Care CKM - HMO
- 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
- Sendero Health Austin512 Silver / $40 PCP / $75 Specialist / $15 Generic Drugs / $0 Deductible - HMO
- Sendero Health Capital Silver / $40 PCP / $80 Specialist / $20 Generic Drugs - HMO
- Sendero Health Hill Country Gold / $30 PCP / $60 Specialist / $15 Generic Drugs - HMO
- Sendero Health Original Silver / $20 PCP + 2 $0 PCP Visits / $10 Generic Drugs - HMO
- Sendero Health Preferred Bronze / $25 PCP / $75 Specialist / $22 Generic Drugs - HMO
- Sendero Health Quality Care Bronze High Deductible / $50 PCP / $25 Generic Drugs / $100 Specialist - HMO
- Sendero Health Real Gold / $350 Deductible - HMO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Kristina Hawk is registered with Medicare and accepts claims assignment, this means the provider accepts the approved amount for the cost of rendered services as full payment. Participating providers may not charge beneficiaries more than the approved amount for their services. Please keep in mind that beneficiaries still have to pay a coinsurance or copayment amount for a visit or service.
Kristina Hawk 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
PECOS PAC ID: 9537433446
What is the PECOS Associate Control ID?
A PAC ID is a unique 10-digit number assigned to an individual or organization healthcare provider in PECOS. The PAC ID is used to link together all the provider information, like tax identification numbers and organizational names. A PAC ID can be connected to multiple Enrollment IDs if an individual or organization has enrolled in PECOS more than once.PECOS Enrollment ID: I20170915001510
What is the Provider Enrollment ID?
The Enrollment ID is a unique alphanumeric 15-digit code assigned to each new provider's PECOS enrollment application. The Enrollment ID is used to link together all the provider enrollment information like enrollment type, state, provider specialty, and reassignment of benefits.Accepts Medicare Assignment? Yes
What does it mean "accepts medicare assignment"?
When a provider accepts Medicare assignment, the provider agrees to be paid directly by Medicare and to accept the payment amount approved by Medicare. Additionally, the provider agrees to not bill patients for more than the Medicare deductible and coinsurance amounts.
A provider who doesn't accept assignment may charge you up to 15% over the Medicare-approved amount. This is known as the limiting charge. You may have to pay this amount, or it may be covered by another insurer.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.
Ct scan head or brain with contrast
Ct scan head or brain without contrast
Ct scan of blood vessels of head with contrast
Ct scan of blood vessels of neck with contrast
Ct scan of face without contrast
Ct scan of soft tissue of neck with contrast
Fluorodeoxyglucose f-18 fdg, diagnostic, per study dose, up to 45 millicuries
Mri scan of brain before and after contrast
Mri scan of brain without contrast
Mri scan of lower spinal canal before and after contrast
Mri scan of lower spinal canal without contrast
Mri scan of upper spinal canal without contrast
Nuclear medicine study from skull base to mid-thigh with ct scan
Nuclear medicine study from skull base to mid-thigh with ct scan
Nuclear medicine study whole body with ct scan
Nuclear medicine study whole body with ct scan
A CT scan of the head or brain with contrast is a non-invasive imaging procedure. A special dye, or contrast, is used to highlight specific areas, enabling clearer, more detailed images. It helps in diagnosing conditions like tumors, infections, or inflammation.
This service was performed 11 times for 11 patientsA CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.
This service was performed 134 times for 127 patientsA CT scan of the head's blood vessels with contrast is a diagnostic procedure. A special dye (contrast) is injected into your body to make the blood vessels visible on the scan. This helps identify issues like blockages or abnormalities in your head's blood vessels.
This service was performed 36 times for 35 patientsA CT scan of the neck's blood vessels with contrast is a diagnostic procedure. It uses X-rays and a special dye to create detailed images of your neck's blood vessels. This helps doctors detect issues such as blockages or abnormalities.
This service was performed 36 times for 35 patientsA CT scan of the face without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your face, including bones, soft tissues, and blood vessels. It's often used to diagnose diseases, injuries, or abnormalities. No contrast dye is used in this procedure.
This service was performed 17 times for 17 patientsA CT scan of the neck with contrast is a non-invasive imaging procedure. A special dye is administered to highlight the soft tissues in your neck, making them easier to see. This helps detect issues like infections, tumors, or other abnormalities.
This service was performed 37 times for 37 patientsFluorodeoxyglucose F-18 FDG is a radioactive drug used in PET scans. It helps doctors see how your tissues and organs are functioning. The drug is given in a specific dose, up to 45 millicuries, depending on your body size and the type of scan.
This service was performed 15 times for 15 patientsAn MRI scan of the brain, both before and after contrast, helps visualize different brain structures. Initially, images are taken without a contrast agent. Then, a safe dye is injected which helps highlight certain areas, providing clearer, more detailed images.
This service was performed 68 times for 68 patientsAn MRI scan of the brain without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your brain. It helps in detecting abnormalities like tumors, stroke, inflammation, or infection.
This service was performed 43 times for 43 patientsAn MRI scan of the lower spinal canal with contrast is a non-invasive imaging procedure. It uses magnetic fields to generate detailed images of your lower spine. A contrast agent is injected to enhance these images, helping doctors see issues more clearly.
This service was performed 13 times for 13 patientsAn MRI scan of the lower spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to produce detailed images of your lower spine. This helps identify issues like disc problems, tumors, or nerve conditions. No dye is used.
This service was performed 17 times for 17 patientsAn MRI scan of the upper spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your upper spine. This helps doctors identify issues such as injuries, infections or diseases. No dye is used.
This service was performed 13 times for 12 patientsA nuclear medicine study from skull base to mid-thigh with a CT scan involves using a small amount of radioactive material and CT imaging to examine body tissues and organs. This helps detect any abnormalities by providing detailed images of the body's internal structure.
This service was performed 432 times for 417 patientsA nuclear medicine study from skull base to mid-thigh with a CT scan involves using a small amount of radioactive material and CT imaging to examine body tissues and organs. This helps detect any abnormalities by providing detailed images of the body's internal structure.
This service was performed 137 times for 126 patientsA Nuclear Medicine Study with a CT Scan is a diagnostic procedure. It uses a small amount of radioactive substance and a CT scan to create detailed images of your body. These images help doctors diagnose, monitor, and treat various conditions.
This service was performed 121 times for 116 patientsA Nuclear Medicine Study with a CT Scan is a diagnostic procedure. It uses a small amount of radioactive substance and a CT scan to create detailed images of your body. These images help doctors diagnose, monitor, and treat various conditions.
This service was performed 71 times for 67 patientsPhysician Visit Costs
The typical physician office visit costs for Medicare beneficiaries in this area are: $26.61 for a new patient copayment and $21.64 for an established patient copayment.
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 94305 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99203
- Average New Patient Price $106.47
- Minimum New Patient Price $70.37
- Maximum New Patient Price $206.04
- Average New Patient Copayment $26.61
- Minimum New Patient Copayment $17.59
- Maximum New Patient Copayment $51.51
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99213
- Average Established Patient Price $86.56
- Minimum Established Patient Price $23.96
- Maximum Established Patient Price $169.6
- Average Established Patient Copayment $21.64
- Minimum Established Patient Copayment $5.99
- Maximum Established Patient Copayment $42.4
* 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 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 1861784860, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).
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 70 is 70. 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.
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Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1861784860, enumerated as an "individual" on May 09, 2011.
The provider is located at 300 PASTEUR DR STANFORD, CA 94305 and the phone number is (650) 723-4000.
Radiology with taxonomy code 2085R0202X and a focus in Diagnostic Radiology.
The provider might be accepting Accepts: Blue Cross and Blue Shield of Texas, Imperial. Please consult your insurance carrier or call the provider to verify.
