MATTHEW STALKER M.D.
NPI 1669490090
Radiology - Diagnostic Radiology in San Antonio, TX
NPI Status: Active since July 17, 2006
Contact Information
311 CAMDEN ST
SUITE 208
SAN ANTONIO, TX
ZIP 78215
Phone: (210) 892-0028
Fax: (210) 455-0169
- Individual
- Male
- Years of Experience 26
- Radiology
- Diagnostic Radiology
- Accepts Insurance
- May Accept Medicare Approved Payment
- PECOS Enrolled
- Medicare Quality Reporting
About MATTHEW STALKER
This page provides the complete NPI Profile along with additional information for Matthew Stalker, a provider established in San Antonio, Texas with a medical specialization in Radiology, focusing in diagnostic radiology and more than 26 years of experience. He graduated from Creighton University School Of Medicine in 2000. The healthcare provider is registered in the NPI registry with number 1669490090 assigned on July 2006. The practitioner's primary taxonomy code is 2085R0202X with license number M4564 (TX). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1669490090
- Provider Name
- MATTHEW STALKER M.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 311 CAMDEN ST SUITE 208 SAN ANTONIO, TX 78215
- Location Phone
- (210) 892-0028
- Location Fax
- (210) 455-0169
- Mailing Address
- 311 CAMDEN ST SUITE 208 SAN ANTONIO, TX 78215
- Mailing Phone
- (210) 892-0228
- Mailing Fax
- (210) 455-0169
- Medical School Name
- CREIGHTON UNIVERSITY SCHOOL OF MEDICINE
- Graduation Year
- 2000
- Is Sole Proprietor?
- No
- Enumeration Date
- 07-17-2006
- Last Update Date
- 08-05-2025
- Code Navigator
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
Radiology Diagnostic Radiology
- Taxonomy Code
- 2085R0202X
- Type
- Allopathic & Osteopathic Physicians
- License No.
- M4564
- License State
- TX
- 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 | 2085R0202X | Allopathic & Osteopathic Physicians | Radiology | 036144474 (IL) |
| 2 | 2085R0202X | Allopathic & Osteopathic Physicians | Radiology | 2025021784 (MO) |
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- Blue Cross� Local HMO Bronze Extra - HMO
- Blue Cross� Local HMO Bronze Secure - HMO
- Blue Cross� Local HMO Silver Extra - HMO
- Blue Cross� Local HMO Silver Saver - HMO
- Blue Cross� Preferred HMO Bronze Extra - HMO
- Blue Cross� Preferred HMO Bronze Saver HSA - HMO
- Blue Cross� Preferred HMO Bronze Secure - HMO
- Blue Cross� Preferred HMO Gold - HMO
- Blue Cross� Preferred HMO Gold Extra - HMO
- Blue Cross� Preferred HMO Silver - HMO
- Blue Cross� Preferred HMO Silver Extra - HMO
- Blue Cross� Preferred HMO Silver Saver - HMO
- Blue Cross� Preferred HMO Value - HMO
- Blue Cross� Select HMO Bronze Extra - HMO
- Blue Cross� Select HMO Bronze Saver HSA - HMO
- Blue Cross� Select HMO Bronze Secure - HMO
- Blue Cross� Select HMO Silver - HMO
- Blue Cross� Select HMO Silver Extra - HMO
- Blue Cross� Select HMO Silver Saver - HMO
- Blue Cross� Select HMO Value - HMO
- 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
- Blue Cross� Premier PPO Bronze Extra - PPO
- Blue Cross� Premier PPO Bronze Saver HSA - PPO
- Blue Cross� Premier PPO Bronze Secure - PPO
- Blue Cross� Premier PPO Gold - PPO
- Blue Cross� Premier PPO Gold Extra - PPO
- Blue Cross� Premier PPO Silver - PPO
- Blue Cross� Premier PPO Silver Extra - PPO
- Blue Cross� Premier PPO Silver Saver HSA - PPO
- Blue Cross� Premier PPO Value - PPO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
Matthew Stalker is registered with Medicare but maybe doesn't accept claims assignment. If you are a Medicare beneficiary call and confirm with the provider before seeking any services.
Matthew Stalker 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: 9739114349
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: I20250813003066
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? Maybe
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.
Injection, gadobenate dimeglumine (multihance), per ml
Mri scan of arm joint without contrast
Mri scan of leg joint without contrast
Mri scan of lower spinal canal without contrast
Gadobenate Dimeglumine (MultiHance) is a contrast agent used in MRI scans. Injected into your body, it helps to enhance the quality of the images captured during the scan. It aids in highlighting differences between normal and abnormal tissues, making diagnosis easier and more accurate.
This service was performed 106 times for 11 patientsAn MRI scan of the arm joint is a non-invasive imaging procedure that uses magnetic fields and radio waves to create detailed images of the structures within your arm joint. No contrast dye is used in this process. It helps to diagnose or monitor conditions like arthritis, injuries, or infections.
This service was performed 95 times for 44 patientsAn MRI scan of your leg joint is a non-invasive procedure that uses magnetic fields and radio waves to create detailed images of the structures within your leg. This helps doctors diagnose or monitor conditions without using contrast dye.
This service was performed 74 times for 35 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 27 times for 14 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 78215 ZIP code area.
New Patients Visit Costs *
The most utilized procedure code for new patients office visits is 99203
- Average New Patient Price $84.92
- Minimum New Patient Price $54.84
- Maximum New Patient Price $166.88
- Average New Patient Copayment $21.23
- Minimum New Patient Copayment $13.71
- Maximum New Patient Copayment $41.72
Established Patients Visit Costs *
The most utilized procedure code for established patients office visits is 99213
- Average Established Patient Price $68.55
- Minimum Established Patient Price $17.52
- Maximum Established Patient Price $136.11
- Average Established Patient Copayment $17.13
- Minimum Established Patient Copayment $4.38
- Maximum Established Patient Copayment $34.02
* 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.
Quality Reporting
The provider participated in CMS Quality Payment Program. The Quality Payment Program aims to improve population health, reduce costs and improve the care received by Medicare beneficiaries. The following quality measures meet Medicare's statistical reporting standards. Not all providers report the same information, because not all providers give the same services to patients. The quality information is just a snapshot of some the care providers give to their patients. Reporting more or less information is not a reflection of quality.
| Quality Measure | Performance | Number of Patients |
|---|
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NPI 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 1669490090, 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.
SAN ANTONIO, TX 78215
SAN ANTONIO, TX 78215
SAN ANTONIO, TX 78215
SAN ANTONIO, TX 78215
SAN ANTONIO, TX 78215
SAN ANTONIO, TX 78215
SAN ANTONIO, TX 78215
SAN ANTONIO, TX 78215
SAN ANTONIO, TX 78215
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1669490090, enumerated as an "individual" on July 17, 2006.
The provider is located at 311 CAMDEN ST SUITE 208 SAN ANTONIO, TX 78215 and the phone number is (210) 892-0028.
Radiology with taxonomy code 2085R0202X and a focus in Diagnostic Radiology.
The provider might be accepting Accepts: Blue Care Network of Michigan, Blue Cross and Blue. Please consult your insurance carrier or call the provider to verify.
