DR. ALEXANDRA ESTHER GRIEB M.D.
NPI 1003349853
Hospitalist in Austin, TX

Q: What is Alexandra Grieb's NPI number?

The NPI number for Alexandra Grieb is 1003349853. It was assigned to this individual provider in the NPPES registry on April 8, 2017.

Q: What is Alexandra Grieb's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Q: When was this NPI record last updated?

The NPPES record for Alexandra Grieb was last updated on December 3, 2025. 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 08, 2017PECOS EnrolledAccepts Medicare Assignment

919 E 32ND ST, AUSTIN, TX 78705(512) 544-7111 Get Directions Write a Review

NPPES record last updated: December 3, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Dec 3, 2025, Jan 14, 2022 (2 updates tracked since 2022).

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About Dr. Alexandra Esther Grieb M.d. NPPES

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

DR. ALEXANDRA ESTHER GRIEB M.D. (NPI 1003349853) is an individual hospitalist provider in Austin, Texas, licensed in Texas (T2613) and active in the NPI registry since April 2017. She is enrolled in Medicare PECOS, is affiliated with St David's Medical Center, and is a graduate of Warren Alpert Medical School Of Brown University (2013).

NPPES Registry Identity

NPI1003349853

Entity TypeIndividualFemale

Primary Taxonomy208M00000X

Provider Legal NameDR. ALEXANDRA ESTHER GRIEBCredential: M.D.

Location Address919 E 32ND STAustin, TX 78705-2703

Mailing Address919 E 32nd StAustin, TX 78705-2703 · (512) 544-7111

Phone(512) 544-7111

Sole ProprietorNo

Medical School CMSWarren Alpert Medical School Of Brown UniversityGraduated 2013

Enumeration DateApril 8, 2017

Last NPPES UpdateDecember 3, 20252 updates tracked since enumeration

NPPES CertifiedDecember 3, 2025

✔ NPI 1003349853 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in TX · T2613

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

919 E 32ND ST, Austin, TX 78705

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Oscar Insurance Company.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. Alexandra Esther Grieb 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 ID5698048056

PECOS Enrollment IDI20220125000591

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 4

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.

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

266 services111 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

75 services74 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

73 services72 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

71 services46 patients

Hospital Affiliations CMS Care Compare 3

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

St David's Medical Center

Acute Care Hospitals · Austin, TX

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450431

Location919 E 32nd StAustin, TX 78705 · Travis County

Emergency services Birthing friendly

St David's South Austin Medical Center

Acute Care Hospitals · Austin, TX

5/5 CMS rating

OwnershipProprietary

CMS Certification Number450713

Location901 West Ben White BlvdAustin, TX 78704 · Travis County

Emergency services Birthing friendly

Round Rock Medical Center

Acute Care Hospitals · Round Rock, TX

4/5 CMS rating

OwnershipProprietary

CMS Certification Number450718

Location2400 Round Rock AveRound Rock, TX 78681 · Williamson County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78705 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

$131.95 typical visit price

range $57.88 – $174.00

Typical copayment $32.98 (range $14.47 – $43.50)

Most-billed visit code 99204

Established Patient

$101.65 typical visit price

range $18.88 – $142.23

Typical copayment $25.41 (range $4.72 – $35.55)

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.

Referred Medical Equipment & Supplies CMS DME claims 2

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

1 supplier12 claims12 services$19.16 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

2 suppliers12 claims12 services$100.35 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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.

ST. DAVID'S HEALTHCARE PARTNERSHIP, L.P., LLP

Anesthesiology