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

Q: What is Sara Timmermann's NPI number?

The NPI number for Sara Timmermann is 1053755694. It was assigned to this individual provider in the NPPES registry on April 25, 2013. The provider is also known as Dr. Sara Mittasch Koenig MD.

Q: What is Sara Timmermann's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for Sara Timmermann was last updated on March 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since April 25, 2013PECOS Enrolled

551 HILL COUNTRY DR, KERRVILLE, TX 78028(830) 896-4200 Get Directions Write a Review

NPPES record last updated: March 3, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 3, 2026, Sep 21, 2025, Jul 5, 2024 and 2 more (5 updates tracked since 2019).

On this page

About Dr. Sara Mittasch Timmermann M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. SARA MITTASCH TIMMERMANN M.D. (NPI 1053755694) is an individual diagnostic radiology provider in Kerrville, Texas, licensed in Texas (R0047) and active in the NPI registry since April 2013. She is enrolled in Medicare PECOS, is affiliated with Ascension St Vincent Hospital, and is a graduate of University Of Texas Medical School At San Antonio (2013).

NPPES Registry Identity

NPI1053755694

Entity TypeIndividualFemale

Primary Taxonomy2085R0202X

Provider Legal NameDR. SARA MITTASCH TIMMERMANNCredential: M.D.

Location Address551 HILL COUNTRY DRKerrville, TX 78028-6085

Mailing Address7703 Floyd Curl DrSan Antonio, TX 78229-3901

Phone(830) 896-4200

Sole ProprietorNo

Medical School CMSUniversity Of Texas Medical School At San AntonioGraduated 2013

Enumeration DateApril 25, 2013

Last NPPES UpdateMarch 3, 20265 updates tracked since enumeration

NPPES CertifiedMarch 3, 2026

✔ NPI 1053755694 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

Licenses✔ Licensed in TX · R0047✔ Licensed in IL · 036172831

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

551 HILL COUNTRY DR, Kerrville, TX 78028

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Other Names 1

Former Name (1)Dr. Sara Mittasch Koenig Md

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Buckeye Health Plan and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Sara Mittasch Timmermann M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9931434974

PECOS Enrollment IDI20190712000270, I20241203003471, I20250502002426, I20260106000717, I20260113002679

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Sara Timmermann reassigns Medicare billing to 23 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Peterson Medical Associates

Same address

Obstetrics & Gynecology

575 HILL COUNTRY DR, STE 202
Kerrville, TX 78028

Reassigned Medicare billing, Texas enrollment
233 clinicians in this Medicare group

NPI 1770800575 (830) 258-6237

University Of Texas Health Science Center At San Antonio

35 mi

Diagnostic Radiology

25753 OLD FREDERICKSBURG
Boerne, TX 78015

Reassigned Medicare billing, Texas enrollment
2,397 clinicians in this Medicare group

NPI 1417921834 (210) 450-9000

River City Imaging Associates PA

58 mi

Diagnostic Radiology

333 N SANTA ROSA ST
San Antonio, TX 78207

Reassigned Medicare billing, Texas enrollment
29 clinicians in this Medicare group

NPI 1679871081 (210) 704-2371

River City Imaging Centers LLC

67 mi

Radiology

1750 E COMMON ST STE 1101
New Braunfels, TX 78130

Reassigned Medicare billing, Texas enrollment
28 clinicians in this Medicare group

NPI 1720661176 (830) 302-4355

Austin Radiological Association

74 mi

Radiology

1348 HIGHWAY 123
San Marcos, TX 78666

Reassigned Medicare billing, Texas enrollment
187 clinicians in this Medicare group

NPI 1710964655 (512) 392-1831

Singleton Associates PA

222 mi

Diagnostic Radiology

9250 PINECROFT DR
Shenandoah, TX 77380

Reassigned Medicare billing, Texas enrollment
1,278 clinicians in this Medicare group

NPI 1487811766 (936) 266-2000

Imaging Associates Of New Mexico LLC

558 mi

Diagnostic Radiology

601 DR MARTIN LUTHER KING JR AVE NE
Albuquerque, NM 87102

Reassigned Medicare billing, Texas enrollment
103 clinicians in this Medicare group

NPI 1629592464 (505) 727-8000

Good Samaritan Regional Health Center

815 mi

Specialist

1 GOOD SAMARITAN WAY
Mount Vernon, IL 62864

Reassigned Medicare billing, Illinois enrollment
284 clinicians in this Medicare group

NPI 1134457955 (618) 899-4600

St. Mary's Hospital, Centralia, Illinois

818 mi

Anesthesiology

400 N PLEASANT AVE
Centralia, IL 62801

Reassigned Medicare billing, Illinois enrollment
Medicare enrollment name: St Marys Hospital Centralia Illinois
392 clinicians in this Medicare group

NPI 1477097871 (618) 436-6056

Radiology Alliance PC

829 mi

Diagnostic Radiology

210 25TH AVE N STE 602
Nashville, TN 37203

Reassigned Medicare billing, Texas enrollment
86 clinicians in this Medicare group

NPI 1861478489 (615) 312-0600

County Of Clay

851 mi

Critical Access

911 STACEY BURK DR
Flora, IL 62839

Reassigned Medicare billing, Illinois enrollment
65 clinicians in this Medicare group

NPI 1184655136 (618) 662-2131

Louisville Radiology Imaging Consultants, PLLC

874 mi

Diagnostic Radiology

1201 PLEASANT VALLEY RD
Owensboro, KY 42303

Reassigned Medicare billing, Texas enrollment
41 clinicians in this Medicare group

NPI 1639115447 (708) 915-5671

Northside Radiology Associates LLC

908 mi

Diagnostic Radiology

1000 JOHNSON FERRY RD
Atlanta, GA 30342

Reassigned Medicare billing, Texas enrollment
58 clinicians in this Medicare group

NPI 1013960657 (404) 662-2438

Imaging Associates Of Indiana, PC

999 mi

Diagnostic Radiology

2001 W 86TH ST
Indianapolis, IN 46260

Reassigned Medicare billing, Indiana and Texas enrollments
219 clinicians in this Medicare group

NPI 1699072611 (219) 767-6320

Specialists In Medical Imaging Sc

1,018 mi

Diagnostic Radiology

20201 CRAWFORD AVE
Olympia Fields, IL 60461

Reassigned Medicare billing, Texas enrollment
63 clinicians in this Medicare group

NPI 1841687951 (708) 747-4000

Mori Bean And Brooks Inc

1,019 mi

Diagnostic Radiology

1 TAMPA GENERAL CIR
Tampa, FL 33606

Reassigned Medicare billing, Texas enrollment
98 clinicians in this Medicare group

NPI 1093782070 (904) 236-5884

Pikeville Medical Center Inc.

1,060 mi

Clinic/Center

148 SUITE A, WHITESBURG PLAZA
Whitesburg, KY 41858

Reassigned Medicare billing, Kentucky enrollment
579 clinicians in this Medicare group

NPI 1801106281 (606) 218-3500

Premier Radiology Wisconsin, LLC

1,073 mi

Diagnostic Radiology

10180 WASHINGTON AVE STE 101
Mount Pleasant, WI 53177

Reassigned Medicare billing, Wisconsin enrollment
237 clinicians in this Medicare group

NPI 1952951154 (414) 973-7830

Medical X-Ray Consultants, Ltd

1,111 mi

Vascular & Interventional Radiology

111 17TH AVE E
Alexandria, MN 56308

Reassigned Medicare billing, Texas enrollment
35 clinicians in this Medicare group

NPI 1386601383 (715) 295-9431

Imaging Associates Of Michigan PLLC

1,301 mi

Diagnostic Radiology

850 W BARAGA AVE
Marquette, MI 49855

Reassigned Medicare billing, Texas enrollment
49 clinicians in this Medicare group

NPI 1164943007 (906) 214-2900

Radiology Affiliates Of Central New Jersey PC

1,547 mi

Diagnostic Radiology

2501 KUSER RD
Hamilton, NJ 08691

Reassigned Medicare billing, Texas enrollment
46 clinicians in this Medicare group

NPI 1811994791 (609) 585-8800

Multicare Health System

1,549 mi

Internal Medicine

15533 E BROADWAY AVE
Spokane Valley, WA 99037

Reassigned Medicare billing, Washington enrollment
4,383 clinicians in this Medicare group

NPI 1336902345 (509) 530-4260

Empire State Radiology P C

1,626 mi

Diagnostic Radiology

1000 MONTAUK HWY
West Islip, NY 11795

Reassigned Medicare billing, New York and Texas enrollments
356 clinicians in this Medicare group

NPI 1255962783 (718) 223-4685

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 20

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967

Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.

1,100 services11 patients

Injection, gadobutrol, 0.1 ml A9585

Gadobutrol is a contrast agent used during MRI scans to help provide clearer images. It's injected into your vein before the scan. This helps doctors to see certain areas more clearly for better diagnosis. It's generally safe with few side effects.

897 services13 patients

X-ray of chest, 1 view 71045

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.

192 services189 patients

Ct scan head or brain without contrast 70450

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.

63 services63 patients

X-ray of chest, 2 views 71046

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.

56 services56 patients

Mri scan of brain without contrast 70551

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.

32 services32 patients

Ct scan of abdomen and pelvis without contrast 74176

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.

30 services30 patients

Ct scan of abdomen and pelvis with contrast 74177

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.

24 services24 patients

X-ray of abdomen, 1 view 74018

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.

21 services20 patients

Ct scan of upper spine without contrast 72125

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.

20 services20 patients

Ct scan of chest without contrast 71250

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

17 services17 patients

Ct scan of blood vessels of chest with contrast 71275

A CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.

17 services17 patients

Screening 3d breast mammography 77063

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.

17 services17 patients

Screening mammography 77067

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.

17 services17 patients

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

16 services16 patients

Mri scan of lower spinal canal without contrast 72148

An 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.

13 services13 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

13 services13 patients

Ct scan of blood vessels of head with contrast 70496

A 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.

12 services12 patients

Ct scan of blood vessels of neck with contrast 70498

A 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.

12 services12 patients

Mri scan of brain before and after contrast 70553

An 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.

12 services12 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Ascension St Vincent Hospital

Acute Care Hospitals · Indianapolis, IN

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number150084

Location2001 W 86th StIndianapolis, IN 46260 · Marion County

Emergency services Birthing friendly

Lovelace Medical Center

Acute Care Hospitals · Albuquerque, NM

3/5 CMS rating

OwnershipProprietary

CMS Certification Number320009

Location601 Dr Martin Luther King Jr Ave NEAlbuquerque, NM 87102 · Bernalillo County

Emergency services

Peterson Regional Medical Center

Acute Care Hospitals · Kerrville, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450007

Location551 Hill Country DriveKerrville, TX 78028 · Kerr County

Emergency services Birthing friendly

Christus Santa Rosa Medical Center

Acute Care Hospitals · San Antonio, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number450237

Location2827 Babcock RoadSan Antonio, TX 78229 · Bexar County

Emergency services Birthing friendly

Christus Santa Rosa Hospital-San Marcos

Acute Care Hospitals · San Marcos, TX

2/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number450272

Location1301 Wonder World DriveSan Marcos, TX 78666 · Hays County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78028 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$84.92 typical visit price

range $54.84 – $166.88

Typical copayment $21.23 (range $13.71 – $41.72)

Most-billed visit code 99203

Established Patient

$68.55 typical visit price

range $17.52 – $136.11

Typical copayment $17.13 (range $4.38 – $34.02)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

MARY GERY

Physician Assistant