DR. SARA MITTASCH TIMMERMANN M.D.
NPI 1053755694
Radiology - Diagnostic Radiology in Kerrville, TX

NPI Status: Active since April 25, 2013

Contact Information

551 HILL COUNTRY DR
KERRVILLE, TX
ZIP 78028
Phone: (830) 896-4200

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  • Individual
  • Female
  • Years of Experience 13
  • Radiology
  • Diagnostic Radiology
  • Accepts Insurance
  • May Accept Medicare Approved Payment
  • PECOS Enrolled

About SARA TIMMERMANN

This page provides the complete NPI Profile along with additional information for Sara Timmermann, a provider established in Kerrville, Texas with a medical specialization in Radiology, focusing in diagnostic radiology and more than 13 years of experience. She graduated from University Of Texas Medical School At San Antonio in 2013. The healthcare provider is registered in the NPI registry with number 1053755694 assigned on April 2013. The practitioner's primary taxonomy code is 2085R0202X with license number R0047 (TX). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI
1053755694
Provider Name
DR. SARA MITTASCH TIMMERMANN M.D.
Other Name
DR. SARA MITTASCH KOENIG MD
Other Name Type
Former Name (1)
Gender
Female
Entity Type
Individual
Location Address
551 HILL COUNTRY DR KERRVILLE, TX 78028
Location Phone
(830) 896-4200
Mailing Address
7703 FLOYD CURL DR SAN ANTONIO, TX 78229
Medical School Name
UNIVERSITY OF TEXAS MEDICAL SCHOOL AT SAN ANTONIO
Graduation Year
2013
Is Sole Proprietor?
No
Enumeration Date
04-25-2013
Last Update Date
03-03-2026
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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.
R0047
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)
12085R0202XAllopathic & Osteopathic Physicians

Radiology
Diagnostic Radiology

036172831 (IL)

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • 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 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
  • CareSource (Common Ground Healthcare) Bronze $0 Ded / $2500 Rx Ded - EPO
  • CareSource (Common Ground Healthcare) Bronze $0 Ded / $2500 Rx Ded - Vision Exam - EPO
  • CareSource (Common Ground Healthcare) Bronze $9600 ($45 PCP Copay) - EPO
  • CareSource (Common Ground Healthcare) Bronze $9600 ($45 PCP Copay) - Vision Exam - EPO
  • CareSource (Common Ground Healthcare) Bronze Standard $7500 - EPO
  • CareSource (Common Ground Healthcare) Bronze Standard $7500 - Vision Exam - EPO
  • CareSource (Common Ground Healthcare) Gold $0 Ded - EPO
  • CareSource (Common Ground Healthcare) Gold $0 Ded - Vision Exam - EPO
  • CareSource (Common Ground Healthcare) Gold $3300 - EPO
  • CareSource (Common Ground Healthcare) Gold $3300 - Vision Exam - EPO
  • CHRISTUS Bronze (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
  • CHRISTUS Bronze + Dental & Vision (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
  • CHRISTUS Bronze Essential - HMO
  • CHRISTUS Bronze Essential (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
  • CHRISTUS Bronze Essential + Dental & Vision (2 Free PCP Visits, $0 Preferred Generic Rx, $0 Virtual Urgent Care) - HMO
  • CHRISTUS Bronze Essential Plus - HMO
  • CHRISTUS Catastrophic (3 Free PCP visits) - HMO
  • CHRISTUS Gold - HMO
  • CHRISTUS Gold + Dental & Vision + Fitness ($0 Deductible, $5 PCP, $0 Generic Rx, $0 Virtual Urgent Care) - HMO
  • CHRISTUS Gold + Fitness ($0 Deductible, $5 PCP, $0 Generic Rx, $0 Virtual Urgent Care) - 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 - EPO
  • Bronze Simple Breathe Easy with Enhanced COPD Benefits - EPO
  • Bronze Simple Breathe Easy with Enhanced COPD Benefits | MercyOne - EPO
  • Bronze Simple Chronic Care CKM - EPO
  • Premera Blue Cross Alaska One Gold - PPO
  • Premera Blue Cross Preferred Bronze 5800 HSA - PPO
  • Premera Blue Cross Preferred Bronze 6350 - PPO
  • Premera Blue Cross Preferred Gold 1500 - PPO
  • Premera Blue Cross Preferred Silver 4500 - PPO
  • Premera Blue Cross Standard Bronze II - PPO
  • Premera Blue Cross Standard Gold - PPO
  • Premera Blue Cross Standard Silver - PPO
  • Premera Blue Cross Family Dental - PPO
  • Premera Blue Cross Pediatric Dental - PPO
  • UHC Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care) - HMO
  • UHC Bronze Essential ($0 Virtual Urgent Care) - HMO
  • UHC Bronze Standard - HMO
  • UHC Bronze Standard+ (Dental + Vision) - HMO
  • UHC Gold Advantage ($0 Virtual Urgent Care, $8 Tier 2 Rx) - HMO
  • UHC Gold Advantage+ ($0 Virtual Urgent Care, $8 Tier 2 Rx, Dental + Vision) - HMO
  • UHC Gold Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care, $8 Tier 2 Rx) - HMO
  • UHC Gold Copay Focus+ $0 Indiv Med Ded ($0 Virtual Urgent Care, $8 Tier 2 Rx, Dental + Vision) - HMO
  • UHC Gold Standard - HMO
  • UHC Sanitas Bronze Copay Focus $0 Indiv Med Ded ($0 Virtual Urgent Care) - HMO

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Medicare Participation & PECOS Enrollment Status

Sara Timmermann 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.

Sara Timmermann 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: 9931434974

    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: I20190712000270, I20241203003471, I20260113002679

    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.

Ct scan head or brain without contrast

A 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 46 times for 46 patients

Ct scan of abdomen and pelvis with contrast

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

This service was performed 13 times for 13 patients

Ct scan of abdomen and pelvis without contrast

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

This service was performed 16 times for 16 patients

Ct scan of upper spine without contrast

A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.

This service was performed 15 times for 15 patients

Mri scan of brain without contrast

An 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 13 times for 12 patients

Screening 3d breast mammography

Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.

This service was performed 31 times for 31 patients

Screening mammography

Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.

This service was performed 34 times for 34 patients

X-ray of abdomen, 1 view

An X-ray of the abdomen, 1 view, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the structures in your abdomen, such as the stomach, liver, and intestines. This can help identify issues like blockages, infections, or injuries.

This service was performed 12 times for 12 patients

X-ray of chest, 1 view

A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.

This service was performed 106 times for 97 patients

X-ray of chest, 2 views

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

This service was performed 16 times for 16 patients

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 78028 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.

Find Provider Hospital Affiliations - Privileges

Doctors and physicians must apply for hospital privileges to treat patients at hospitals. Find out if your doctor has privileges to practice at your preferred hospital by using the hospital affiliation information below based on recent medical claims.

Hospital affiliation is identified through self-reporting data, inpatient, outpatient, physician and ancillary service claims linked by the medical claims NPI number and place of service code. Additionally, to further determine provider hospital affiliation the clinician must have provided services to at least three patients on three different dates in the last 12 months. Sara Timmermann is affiliated with the following medical facilities:

Hospital Name Address Phone Hospital Type Overall Rating
LOVELACE MEDICAL CENTER601 DR MARTIN LUTHER KING JR AVE NE
ALBUQUERQUE, NM 87102
(505) 727-8000Acute Care Hospitals
PETERSON REGIONAL MEDICAL CENTER551 HILL COUNTRY DRIVE
KERRVILLE, TX 78028
(830) 896-4200Acute Care Hospitals
CHRISTUS SANTA ROSA MEDICAL CENTER2827 BABCOCK ROAD
SAN ANTONIO, TX 78229
(210) 704-3342Acute Care Hospitals
CHRISTUS SANTA ROSA HOSPITAL-SAN MARCOS1301 WONDER WORLD DRIVE
SAN MARCOS, TX 78666
(512) 753-3690Acute Care Hospitals
DEACONESS MEDICAL CENTERW 800 FIFTH AVENUE
SPOKANE, WA 99210
(509) 473-5800Acute Care Hospitals

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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 1053755694, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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.

Pos 1
1
Doubled → 2
Pos 2
0
Unchanged
Pos 3
5
Doubled → 10 → 1 + 0
Pos 4
3
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
5
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
6
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
4
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 5 → 10 → 1 7 → 14 → 5 5 → 10 → 1 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 0 + 1 + 0 + 3 + 1 + 4 + 5 + 1 + 0 + 6 + 1 + 8 + 24 = 56

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1053755694.

Other Providers at the Same Location


The following 19 providers are registered at the same or a nearby location.

Internal Medicine
551 HILL COUNTRY DR
KERRVILLE, TX 78028
Hospitalist
551 HILL COUNTRY DR
KERRVILLE, TX 78028
Internal Medicine
551 HILL COUNTRY DR
KERRVILLE, TX 78028
Emergency Medicine
551 HILL COUNTRY DR
KERRVILLE, TX 78028
Anesthesiology
551 HILL COUNTRY DR
KERRVILLE, TX 78028
Nurse Anesthetist, Certified Registered
551 HILL COUNTRY DR
KERRVILLE, TX 78028
Physical Medicine & Rehabilitation
551 HILL COUNTRY DR
KERRVILLE, TX 78028
Hospitalist
551 HILL COUNTRY DR
KERRVILLE, TX 78028
Hospitalist
551 HILL COUNTRY DR
KERRVILLE, TX 78028
Physical Therapist
551 HILL COUNTRY DR
KERRVILLE, TX 78028
Emergency Medicine
551 HILL COUNTRY DR
KERRVILLE, TX 78028
Physician Assistant
551 HILL COUNTRY DR
KERRVILLE, TX 78028
Emergency Medicine
551 HILL COUNTRY DR, PETERSON REGIONAL MEDICAL CENTER
KERRVILLE, TX 78028
Pharmacist
551 HILL COUNTRY DR
KERRVILLE, TX 78028
Physician Assistant
551 HILL COUNTRY DR
KERRVILLE, TX 78028
Physical Therapist
551 HILL COUNTRY DR
KERRVILLE, TX 78028
Registered Nurse (General Practice)
551 HILL COUNTRY DR
KERRVILLE, TX 78028
Physical Medicine & Rehabilitation
551 HILL COUNTRY DR
KERRVILLE, TX 78028
Nurse Anesthetist, Certified Registered
551 HILL COUNTRY DR
KERRVILLE, TX 78028

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1053755694, enumerated as an "individual" on April 25, 2013.

The provider is located at 551 HILL COUNTRY DR KERRVILLE, TX 78028 and the phone number is (830) 896-4200.

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.

Sara Timmermann is affiliated with: LOVELACE MEDICAL CENTER, PETERSON REGIONAL MEDICAL CENTER, CHRISTUS SANTA ROSA MEDICAL CENTER, CHRISTUS SANTA ROSA HOSPITAL-SAN MARCOS and DEACONESS MEDICAL CENTER.