DR. MARCY R WIEMERS M.D.
NPI 1245453307
Family Medicine in San Antonio, TX

Active since April 10, 2007PECOS EnrolledAccepts Medicare Assignment
1831 S GENERAL MCMULLEN DR, SAN ANTONIO, TX 78226(210) 644-8500(210) 644-8526 Get Directions Write a Review

NPPES record last updated: February 5, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Marcy R Wiemers M.d. NPPES

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

DR. MARCY R WIEMERS M.D. (NPI 1245453307) is an individual family medicine provider in San Antonio, Texas, licensed in Texas (M0308) and active in the NPI registry since April 2007. She is enrolled in Medicare PECOS, is affiliated with University Health System, and is a graduate of Texas A & M University System, Hsc, College Of Medicine (2003).

NPPES Registry Identity

NPI1245453307
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. MARCY R WIEMERSCredential: M.D.
Location Address1831 S GENERAL MCMULLEN DRSan Antonio, TX 78226-1190
Mailing Address7703 Floyd Curl Dr, Mc7977San Antonio, TX 78229-3901 · (210) 450-9000
Fax(210) 644-8526
Sole ProprietorNo
Medical School CMSTexas A & M University System, Hsc, College Of MedicineGraduated 2003
Enumeration DateApril 10, 2007
Last NPPES UpdateFebruary 5, 2025
NPPES CertifiedFebruary 5, 2025
NPI 1245453307 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License Licensed in TX · M0308
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
1831 S GENERAL MCMULLEN DR, San Antonio, TX 78226

Other Identifiers 2

Other8BJ990TX · Bcbs
Medicaid188670703TX

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Marcy R Wiemers M.d. 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 ID5193812972
PECOS Enrollment IDI20071025000356
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.

Areas of Expertise CMS Part B claims 3

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.
45 services27 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
15 services14 patients
Annual depression screening, 5 to 15 minutes G0444
An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.
12 services12 patients

Hospital Affiliations CMS Care Compare

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

University Health System

Acute Care Hospitals · San Antonio, TX
3/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number450213
Location4502 Medical DrSan Antonio, TX 78229 · Bexar County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78226 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
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
Most-billed visit code 99214
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 8

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

Nurse Practitioner (Family)
1831 S GENERAL MCMULLEN DR
SAN ANTONIO, TX 78226
Clinic/Center (Ambulatory Family Planning Facility)
1831 S GENERAL MCMULLEN DR
SAN ANTONIO, TX 78226
Nurse Practitioner (Gerontology)
1831 S GENERAL MCMULLEN DR
SAN ANTONIO, TX 78226
Family Medicine
1831 S GENERAL MCMULLEN DR
SAN ANTONIO, TX 78226
Student in an Organized Health Care Education/Training Program
1831 S GENERAL MCMULLEN DR
SAN ANTONIO, TX 78226
Pediatrics
1831 S GENERAL MCMULLEN DR
SAN ANTONIO, TX 78226
Physician Assistant (Medical)
1831 S GENERAL MCMULLEN DR
SAN ANTONIO, TX 78226
Family Medicine
1831 S GENERAL MCMULLEN DR
SAN ANTONIO, TX 78226

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 Marcy Wiemers's NPI number?

The NPI number for Marcy Wiemers is 1245453307. It was assigned to this individual provider in the NPPES registry on April 10, 2007.

Where is Marcy Wiemers located?

Marcy Wiemers practices at 1831 S General Mcmullen Dr, San Antonio, TX 78226. The listed phone number is (210) 644-8500.

What is Marcy Wiemers's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Marcy Wiemers enrolled in Medicare?

Yes. Marcy Wiemers 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.

What insurance does Marcy Wiemers accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Imperial Insurance Companies, Inc., Molina Healthcare and WellPoint list Marcy Wiemers 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 Marcy Wiemers affiliated with any hospitals?

According to CMS data, Marcy Wiemers is affiliated with University Health System.

When was this NPI record last updated?

The NPPES record for Marcy Wiemers was last updated on February 5, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 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.