SAYF YASSIN M.D.
NPI 1043605371
Internal Medicine in Round Rock, TX

Active since April 02, 2015PECOS EnrolledAccepts Medicare Assignment
201 SETON PKWY, ROUND ROCK, TX 78665(512) 324-4170 Get Directions Write a Review

NPPES record last updated: February 19, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Feb 19, 2025, Aug 11, 2022, May 30, 2019 and 1 more (4 updates tracked since 2018).

About Sayf Yassin M.d. NPPES

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

SAYF YASSIN M.D. (NPI 1043605371) is an individual internal medicine provider in Round Rock, Texas, licensed in Texas (R8293) and active in the NPI registry since April 2015. He is enrolled in Medicare PECOS, is affiliated with Laredo Medical Center, and maintains a secondary practice location in Murfreesboro.

NPPES Registry Identity

NPI1043605371
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameSAYF YASSINCredential: M.D.
Location Address201 SETON PKWYRound Rock, TX 78665-8000
Mailing Address709 Timber Creek CvRound Rock, TX 78665-5652 · (202) 469-9111
Sole ProprietorYes
Medical School CMSOtherGraduated 2004
Enumeration DateApril 2, 2015
Last NPPES UpdateFebruary 19, 20254 updates tracked since enumeration
NPPES CertifiedFebruary 19, 2025
NPI 1043605371 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
Licenses Licensed in TX · R8293 Licensed in TN · 66293
Definition

A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.

201 SETON PKWY, Round Rock, TX 78665

Secondary Practice Location 1

Location 11700 Medical Center PkwyMurfreesboro, TN 37129-2245 · Phone (615) 396-4694 · Fax (615) 396-6751

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

Sayf Yassin 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 ID8224334677
PECOS Enrollment IDI20181017000479
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 6

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 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.
493 services223 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.
223 services211 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.
100 services97 patients
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.
83 services56 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
12 services12 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

Laredo Medical Center

Acute Care Hospitals · Laredo, TX
2/5 CMS rating
OwnershipProprietary
CMS Certification Number450029
Location1700 East SaundersLaredo, TX 78044 · Webb County
Emergency services Birthing friendly

Ascension Seton Southwest

Acute Care Hospitals · Austin, TX
OwnershipVoluntary non-profit - Private
CMS Certification Number450865
Location7900 Fm 1826Austin, TX 78737 · Hays County
Emergency services

Ascension Seton Williamson

Acute Care Hospitals · Round Rock, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number670041
Location201 Seton ParkwayRound Rock, TX 78664 · Williamson County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78665 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
$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.

Referred Medical Equipment & Supplies CMS DME claims 3

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
3 suppliers42 claims42 services$14.43 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
3 suppliers60 claims60 services$68.37 avg. paid by Medicare
Portable gaseous oxygen system, rental; home compressor used to fill portable oxygen cylinders; includes portable containers, regulator, flowmeter, humidifier, cannula or mask, and tubing K0738
DME-Oxygen and Supplies · category DC000N
1 supplier15 claims15 services$32.56 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.

Lactation Consultant, Non-RN
201 SETON PKWY
ROUND ROCK, TX 78665
Pharmacist (Pharmacotherapy)
201 SETON PKWY, SETON MEDICAL CENTER WILLIAMSON
ROUND ROCK, TX 78665
Pathology (Anatomic Pathology & Clinical Pathology)
201 SETON PKWY, SETON MEDICAL CENTER WILLIAMSON
ROUND ROCK, TX 78665
Dietitian, Registered
201 SETON PKWY
ROUND ROCK, TX 78665
Nurse Practitioner (Acute Care)
201 SETON PKWY
ROUND ROCK, TX 78665
Nurse Practitioner (Acute Care)
201 SETON PKWY
ROUND ROCK, TX 78665
Physician Assistant
201 SETON PKWY
ROUND ROCK, TX 78665
Physician Assistant (Surgical)
201 SETON PKWY
ROUND ROCK, TX 78665

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 Sayf Yassin's NPI number?

The NPI number for Sayf Yassin is 1043605371. It was assigned to this individual provider in the NPPES registry on April 2, 2015.

Where is Sayf Yassin located?

Sayf Yassin practices at 201 Seton Pkwy, Round Rock, TX 78665. The listed phone number is (512) 324-4170.

What is Sayf Yassin's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Sayf Yassin enrolled in Medicare?

Yes. Sayf Yassin 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 Sayf Yassin accept?

Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Oscar Insurance Company and Sendero Health Plans, Local Nonprofit list Sayf Yassin 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 Sayf Yassin affiliated with any hospitals?

According to CMS data, Sayf Yassin is affiliated with Laredo Medical Center, Ascension Seton Southwest and Ascension Seton Williamson.

When was this NPI record last updated?

The NPPES record for Sayf Yassin was last updated on February 19, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.