MICHAEL CYRUS SIAH
NPI 1346668233
Surgery - Vascular Surgery in Dallas, TX

Q: What is Michael Siah's NPI number?

The NPI number for Michael Siah is 1346668233. It was assigned to this individual provider in the NPPES registry on March 28, 2014.

Q: What is Michael Siah's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Q: When was this NPI record last updated?

The NPPES record for Michael Siah was last updated on August 19, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.

Active since March 28, 2014PECOS EnrolledAccepts Medicare Assignment

74.59/100

CMS Quality Rating

5201 HARRY HINES BLVD, DALLAS, TX 75235(214) 590-5694 Get Directions Write a Review

NPPES record last updated: August 19, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Michael Cyrus Siah NPPES

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

MICHAEL CYRUS SIAH (NPI 1346668233) is an individual vascular surgery provider in Dallas, Texas, licensed in Texas (S3065) and active in the NPI registry since March 2014. He is enrolled in Medicare PECOS, is affiliated with Ut Southwestern University Hospital - William P. Clements Jr., and is a graduate of Other (2014).

NPPES Registry Identity

NPI1346668233

Entity TypeIndividualMale

Primary Taxonomy2086S0129X

Provider Legal NameMICHAEL CYRUS SIAH

Location Address5201 HARRY HINES BLVDDallas, TX 75235-7708

Mailing Address110 Irving St Nw, Vascular SurgeryWashington, DC 20010-3017 · (202) 877-3536 · Fax (202) 877-3699

Phone(214) 590-5694

Sole ProprietorYes

Medical School CMSOtherGraduated 2014

Enumeration DateMarch 28, 2014

Last NPPES UpdateAugust 19, 2019

✔ NPI 1346668233 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians

Taxonomy Code2086S0129X

License✔ Licensed in TX · S3065

Definition

A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

5201 HARRY HINES BLVD, Dallas, TX 75235

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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

Michael Cyrus Siah 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 ID3779812847

PECOS Enrollment IDI20190916001072

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 Reassignment

Medicare enrollment records show Michael Siah reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

University Of Texas Southwestern Medical Center At Dallas

Same address

Orthopaedic Surgery

5323 HARRY HINES BLVD
Dallas, TX 75390

Reassigned Medicare billing, Texas enrollment
5,299 clinicians in this Medicare group

NPI 1083669766 (214) 645-0624

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 24

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.

Review by radiologist of arm or leg artery image 75710

This procedure involves a radiologist examining images of your arm or leg arteries. These images are obtained through a non-invasive method, like an ultrasound or CT scan. The radiologist reviews these images to identify any abnormalities, such as blockages or narrowing, which can affect blood flow.

76 services61 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

71 services39 patients

Ultrasound evaluation of blood vessel with review by radiologist, each additional vessel 37253

An ultrasound evaluation of a blood vessel is a non-invasive procedure that uses sound waves to create images of your blood vessels. A radiologist reviews these images to check for any abnormalities. If additional vessels need reviewing, the process is repeated.

62 services24 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.

58 services26 patients

Ultrasound study of arm and leg arteries 93922

An ultrasound study of arm and leg arteries is a non-invasive procedure that uses sound waves to create images of your arteries. It helps in checking blood flow, identifying blockages, or detecting other abnormalities in your arteries.

42 services40 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

41 services38 patients

Ultrasound evaluation of blood vessel with review by radiologist, initial vessel 37252

This procedure involves using ultrasound, a safe imaging technique, to examine your blood vessels. The images are then reviewed by a radiologist, a doctor specialized in medical imaging. The process helps identify any abnormalities in your initial vessel.

36 services33 patients

Ultrasonic guidance for blood vessel access 76937

Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.

33 services28 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

33 services29 patients

Balloon dilation of artery of leg, initial vessel 37228

Balloon dilation of the artery of the leg is a procedure to improve blood flow. A small balloon is inserted into the leg artery and inflated to widen the vessel, allowing better circulation. This is typically the first vessel treated.

29 services27 patients

Ultrasound of one leg arteries or artery grafts 93926

An ultrasound of leg arteries or artery grafts is a non-invasive test using sound waves to create images of your blood vessels. This helps doctors assess blood flow, identify blockages, and monitor the health of grafts.

24 services21 patients

Removal of plaque in artery of leg, initial vessel 37229

This procedure involves removing plaque from the initial vessel in your leg. Plaque, a build-up of fat, cholesterol, and other substances, can block blood flow. The removal process, known as an angioplasty, restores healthy blood circulation in your leg.

21 services14 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

20 services20 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.

18 services18 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.

18 services18 patients

Ultrasound study of one arm or leg veins with compression and maneuvers 93971

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

17 services17 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

17 services17 patients

Balloon dilation of artery of leg 37224

Balloon dilation of the leg artery is a procedure to improve blood flow. A tiny balloon is inserted into a narrowed artery, then inflated to widen the artery. This helps increase blood circulation to the leg. It's usually done under local anesthesia.

16 services16 patients

Balloon dilation of artery of leg, each additional vessel 37232

Balloon dilation of the artery of the leg, for each additional vessel, is a procedure to open up blocked arteries. A small balloon is inserted and inflated to widen the artery, improving blood flow to the leg.

16 services13 patients

Insertion of tube into abdominal, pelvic, or leg artery, initial third order branch 36247

This procedure involves placing a tube into an artery in the abdomen, pelvis, or leg. The tube is inserted into the initial third order branch of the artery. This can help doctors diagnose or treat certain conditions by allowing access to these blood vessels.

14 services13 patients

Review by radiologist of abdominal aorta image 75625

This is a procedure where a radiologist, a doctor specialized in medical imaging, examines an image of your abdominal aorta. The abdominal aorta is the large blood vessel that carries blood to your lower body. The radiologist checks for any abnormalities to ensure your overall vascular health.

14 services12 patients

Complete ultrasound of abdomen and pelvis artery and vein blood flow 93975

This procedure uses sound waves to create images of your abdomen and pelvis, specifically focusing on the arteries and veins. It helps in assessing the blood flow and detecting any abnormalities, ensuring your overall well-being.

13 services13 patients

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.

12 services11 patients

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

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

Ut Southwestern University Hospital - William P. Clements Jr.

Acute Care Hospitals · Dallas, TX

5/5 CMS rating

OwnershipGovernment - State

CMS Certification Number450044

Location6201 Harry Hines BlvdDallas, TX 75390 · Dallas County

Emergency services Birthing friendly

Texas Health Presbyterian Hospital Dallas

Acute Care Hospitals · Dallas, TX

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number450462

Location8200 Walnut Hill LaneDallas, TX 75231 · Dallas County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75235 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

$88.19 typical visit price

range $57.18 – $172.86

Typical copayment $22.04 (range $14.29 – $43.21)

Most-billed visit code 99203

Established Patient

$71.28 typical visit price

range $18.48 – $141.20

Typical copayment $17.82 (range $4.62 – $35.30)

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.

74.59/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

56.12

Promoting Interoperability

100

Improvement Activities

Cost

59.2

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.

BRADFORD STAGER COMMONS MD

Emergency Medicine

5201 HARRY HINES BLVD, HOUSE STAFF & GME
DALLAS, TX 75235

Dallas County (214) 590-8058

LYNN NGUYEN MD

Student in an Organized Health Care Education/Training Program

5201 HARRY HINES BLVD, HOUSE STAFF & GME
DALLAS, TX 75235

Dallas County (214) 590-8058

MRS. MIRANDA KAY CROWDER NNP

Nurse Practitioner (Neonatal)

5201 HARRY HINES BLVD
DALLAS, TX 75235

Dallas County (214) 590-6500

DR. JAN PETRASEK M.D., PH.D.

Internal Medicine (Gastroenterology)

5201 HARRY HINES BLVD, GRADUATE MEDICAL EDUCATION
DALLAS, TX 75235

Dallas County (214) 590-8058

MRS. GLENDA SUE PATREDIS CPNP

Nurse Practitioner (Pediatrics)

5201 HARRY HINES BLVD
DALLAS, TX 75235

Dallas County (972) 414-1823

MRS. LONNA LAREE SEGER C.W.H.N.P.

Nurse Practitioner (Women's Health)

5201 HARRY HINES BLVD
DALLAS, TX 75235

Dallas County (214) 590-6711

ORKUN MUFTUOGLU MD

Student in an Organized Health Care Education/Training Program

5201 HARRY HINES BLVD, HOUSE STAFF & GME
DALLAS, TX 75235

Dallas County (214) 590-8058

KATHLEEN JO BOX CRNA

Nurse Anesthetist, Certified Registered

5201 HARRY HINES BLVD, DEPT. OF ANESTHESIOLOGY
DALLAS, TX 75235

Dallas County (214) 590-8329

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 Michael Siah's NPI number?

The NPI number for Michael Siah is 1346668233. It was assigned to this individual provider in the NPPES registry on March 28, 2014.

Where is Michael Siah located?

Michael Siah practices at 5201 Harry Hines Blvd, Dallas, TX 75235. The listed phone number is (214) 590-5694.

What is Michael Siah's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Is Michael Siah enrolled in Medicare?

Yes. Michael Siah 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 organization bills Medicare for Michael Siah's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Michael Siah reassigns Medicare benefits to University Of Texas Southwestern Medical Center At Dallas (Dallas, TX). The 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 Michael Siah's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Michael Siah 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 Michael Siah 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 Michael Siah affiliated with any hospitals?

According to CMS data, Michael Siah is affiliated with Ut Southwestern University Hospital - William P. Clements Jr. and Texas Health Presbyterian Hospital Dallas.

When was this NPI record last updated?

The NPPES record for Michael Siah was last updated on August 19, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.