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SARA HOLZBAUER DE CASTELLANOS D.O.
NPI 1194929927
Obstetrics & Gynecology in Stephenville, TX

Active since June 14, 2007PECOS EnrolledAccepts Medicare Assignment
75.27/100
CMS Quality Rating
725 N GRAHAM ST STE 4, STEPHENVILLE, TX 76401(254) 965-1156 Get Directions Write a Review

NPPES record last updated: September 8, 2021. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Sara Holzbauer De Castellanos D.o. NPPES

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

SARA HOLZBAUER DE CASTELLANOS D.O. (NPI 1194929927) is an individual obstetrics & gynecology provider in Stephenville, Texas, licensed in Texas (T2340) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS, is affiliated with Texas Health Harris Methodist Hospital Stephenvill, and is a graduate of Kansas City University Of Med & Biosciences, College Of Osteo Med (2007).

NPPES Registry Identity

NPI1194929927
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameSARA HOLZBAUER DE CASTELLANOSCredential: D.O.
Location Address725 N GRAHAM ST STE 4Stephenville, TX 76401-3100
Mailing Address725 N Graham St Ste 4Stephenville, TX 76401-3100 · (254) 965-1156
Phone(254) 965-1156
Sole ProprietorNo
Medical School CMSKansas City University Of Med & Biosciences, College Of Osteo MedGraduated 2007
Enumeration DateJune 14, 2007
Last NPPES UpdateSeptember 8, 2021
NPPES CertifiedSeptember 8, 2021
✔ NPI 1194929927 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
Licenses✔ Licensed in TX · T2340✔ Licensed in SD · 8110✔ Licensed in MI · 5101017199
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
725 N GRAHAM ST STE 4, Stephenville, TX 76401
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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 Louisiana Healthcare Connections 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 and accepts Medicare assignment

Sara Holzbauer De Castellanos D.o. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID3173795861
PECOS Enrollment IDI20210928001971
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

2

Medicare enrollment records show Sara Castellanos reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Texas Health Physicians Group
62 mi
Internal Medicine
1301 PENNSYLVANIA AVE
Fort Worth, TX 76104
  • Reassigned Medicare billing, Texas enrollment
  • 1,639 clinicians in this Medicare group
NPI 1174573596 (214) 860-6300
Huron Regional Medical Center Inc
837 mi
Critical Access
172 4TH ST SE
Huron, SD 57350
  • Reassigned Medicare billing, South Dakota enrollment
  • 120 clinicians in this Medicare group
NPI 1154312429 (605) 353-6200

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

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This 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.
18 services11 patients

Hospital Affiliations CMS Care Compare

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

Texas Health Harris Methodist Hospital Stephenvill

Acute Care Hospitals · Stephenville, TX
4/5 CMS rating
OwnershipVoluntary non-profit - Other
CMS Certification Number450351
Location411 N Belknap StStephenville, TX 76401 · Erath County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 76401 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
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

75.27/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality68.07
Promoting Interoperability100
Improvement Activities40
Cost49.5

Reported Quality Measures

Breast Cancer Screening
Percentage of women 50-74 years of age who had a mammogram to screen for breast cancer
47%43 patients3/55-star benchmark: 92%
Cervical Cancer Screening
Percentage of women 21-64 years of age who were screened for cervical cancer using either of the following criteria: - Women age 21-64 who had cervical cytology performed every 3 years - Women age 30-64 who had cervical cytology/human papillomavirus (HPV)…
78%212 patients
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
96%509 patients4/55-star benchmark: 99%
Medication Reconciliation
The MIPS eligible clinician performs medication reconciliation for at least one transition of care in which the patient is transitioned into the care of the MIPS eligible clinician.
89%133 patients2/55-star benchmark: 100%
Patient-Specific Education
The MIPS eligible clinician must use clinically relevant information from CEHRT to identify patient-specific educational resources and provide access to those materials to at least one unique patient seen by the MIPS eligible clinician.
85%498 patients4/55-star benchmark: 97%
Preventive Care and Screening: Body Mass Index (BMI) Screening and Follow-Up Plan
Percentage of patients aged 18 years and older with a BMI documented during the current encounter or during the previous twelve months AND with a BMI outside of normal parameters, a follow-up plan is documented during the encounter or during the previous…
66%211 patients3/55-star benchmark: 97%
Preventive Care and Screening: Tobacco Use: Screening and Cessation Intervention
Percentage of patients aged 18 years and older who were screened for tobacco use one or more times within 24 months AND who received tobacco cessation intervention if identified as a tobacco user
Patients screenedForUse: 91% · 209 patients
86%209 patients4/55-star benchmark: 98%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
57%498 patients3/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
4%498 patients1/55-star benchmark: 89%
View, Download, or Transmit (VDT)
At least one patient seen by the MIPS eligible clinician during the performance period (or patient-authorized representative) views, downloads or transmits their health information to a third party during the performance period.
16%498 patients
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 2

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

JAIME GROTHOUSE DO
Obstetrics & Gynecology
725 N GRAHAM ST STE 4
STEPHENVILLE, TX 76401
Erath County (254) 965-1156
OMAR CABRERA M.D.
Obstetrics & Gynecology
725 N GRAHAM ST STE 4
STEPHENVILLE, TX 76401
Erath County (254) 965-1156

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Sara Castellanos's NPI number?

The NPI number for Sara Castellanos is 1194929927. It was assigned to this individual provider in the NPPES registry on June 14, 2007.

Where is Sara Castellanos located?

Sara Castellanos practices at 725 N Graham St Ste 4, Stephenville, TX 76401. The listed phone number is (254) 965-1156.

What is Sara Castellanos's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Sara Castellanos enrolled in Medicare?

Yes. Sara Castellanos is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Sara Castellanos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sara Castellanos reassigns Medicare benefits to 2 organizations: Texas Health Physicians Group (Fort Worth, TX) and Huron Regional Medical Center Inc (Huron, SD). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Sara Castellanos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sara Castellanos accept?

Health plans from Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 1 other insurer list Sara Castellanos as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Sara Castellanos affiliated with any hospitals?

According to CMS data, Sara Castellanos is affiliated with Texas Health Harris Methodist Hospital Stephenvill.

When was this NPI record last updated?

The NPPES record for Sara Castellanos was last updated on September 8, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years 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.