DR. THOMAS S. NASSER DO
NPI 1073594636
Physical Medicine & Rehabilitation in Lancaster, CA

Q: What is Thomas Nasser's NPI number?

The NPI number for Thomas Nasser is 1073594636. It was assigned to this individual provider in the NPPES registry on November 10, 2005.

Q: What is Thomas Nasser's specialty?

The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.

Q: When was this NPI record last updated?

The NPPES record for Thomas Nasser was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 November 10, 2005PECOS EnrolledAccepts Medicare Assignment

43847 HEATON AVE, SUITE J, LANCASTER, CA 93534(661) 729-3388(661) 726-5377 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Thomas S. Nasser Do NPPES

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

DR. THOMAS S. NASSER DO (NPI 1073594636) is an individual physical medicine & rehabilitation provider in Lancaster, California, licensed in California (20A8971) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS and is a graduate of Other (2001).

NPPES Registry Identity

NPI1073594636

Entity TypeIndividualMale

Primary Taxonomy208100000X

Provider Legal NameDR. THOMAS S. NASSERCredential: DO

Location Address43847 HEATON AVE, SUITE JLancaster, CA 93534-4936

Mailing Address3053 Rancho Vista Blvd, Suite H, # 195Palmdale, CA 93551-4823 · (661) 729-3388 · Fax (661) 726-5377

Phone(661) 729-3388

Fax(661) 726-5377

Sole ProprietorNo

Medical School CMSOtherGraduated 2001

Enumeration DateNovember 10, 2005

Last NPPES UpdateJuly 13, 2026

✔ NPI 1073594636 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPhysical Medicine & RehabilitationAllopathic & Osteopathic Physicians

Taxonomy Code208100000X

License✔ Licensed in CA · 20A8971

Definition

Physical medicine and rehabilitation, also referred to as rehabilitation medicine, is the medical specialty concerned with diagnosing, evaluating, and treating patients with physical disabilities. These disabilities may arise from conditions affecting the musculoskeletal system such as neck and back pain, sports injuries, or other painful conditions affecting the limbs, such as carpal tunnel syndrome. Alternatively, the disabilities may result from neurological trauma or disease such as spinal cord injury, head injury or stroke. A physician certified in physical medicine and rehabilitation is often called a physiatrist. The primary goal of the physiatrist is to achieve maximal restoration of physical, psychological, social and vocational function through comprehensive rehabilitation. Pain management is often an important part of the role of the physiatrist. For diagnosis and evaluation, a physiatrist may include the techniques of electromyography to supplement the standard history, physical, x-ray and laboratory examinations. The physiatrist has expertise in the appropriate use of therapeutic exercise, prosthetics (artificial limbs), orthotics and mechanical and electrical devices.

43847 HEATON AVE, Lancaster, CA 93534

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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

Dr. Thomas S. Nasser Do 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 ID2860448925

PECOS Enrollment IDI20050322001182

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

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

Embassy Surgery Center, LLC

2.2 mi

Ambulatory Surgical

42135 10TH ST W, SUITE 325
Lancaster, CA 93534

Reassigned Medicare billing, California enrollment
7 clinicians in this Medicare group

NPI 1174063788 (661) 726-5005

Avors Medical Group

2.2 mi

Orthopaedic Surgery

42135 10TH ST W STE 101
Lancaster, CA 93534

Reassigned Medicare billing, California enrollment
24 clinicians in this Medicare group

NPI 1023297165 (661) 726-5005

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 50

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.

3,037 services608 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.

1,745 services408 patients

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

1,105 services135 patients

Alcohol and/or substance (other than tobacco) misuse structured assessment (e.g., audit, dast), and brief intervention 15 to 30 minutes G0396

This service involves a structured evaluation of your alcohol or substance use habits. It identifies potential issues and provides brief counseling to help modify harmful behaviors. It's a short, 15-30 minute process, focused on promoting healthier choices.

821 services208 patients

Evaluation of psychological test, first hour 96130

This procedure involves a professional assessing your mental health using standardized tests. It's the initial hour of a process that helps understand your emotional well-being and cognitive abilities. It's completely non-invasive and confidential.

818 services208 patients

Evaluation of neuropsychological test, first hour 96132

An evaluation of neuropsychological tests is a process to assess your brain's function. It involves tasks designed to measure cognitive abilities such as memory, attention, problem-solving, and language skills. The first hour involves initial testing and observation.

818 services208 patients

Administration of psychological or neuropsychological test by technician, first 30 minutes 96138

This procedure involves a trained technician administering a psychological or neuropsychological test. It's a process that assesses your mental function and behavior. The initial session will last 30 minutes. The aim is to understand your cognitive abilities better.

818 services208 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.

577 services223 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.

302 services236 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.

296 services191 patients

Electronic analysis reprogramming and refill of spinal canal drug infusion pump by physician 62370

This procedure involves a physician checking and adjusting your spinal canal drug infusion pump. The pump's programming is updated electronically and the medication reservoir is refilled, ensuring effective pain management and optimal device performance.

215 services64 patients

Testing for presence of drug, read by direct observation 80305

Testing for the presence of drugs involves collecting a sample, usually urine, which is then analyzed for specific substances. The process is monitored directly to ensure accuracy and integrity. This test helps to confirm if drugs are present in your system.

214 services195 patients

Ultrasonic guidance for needle placement 76942

Ultrasonic guidance for needle placement is a technique where sound waves create images that help accurately position the needle during procedures. This method ensures precision, minimizes discomfort, and increases safety.

212 services64 patients

Compounded drug, not otherwise classified J7999

A compounded drug is a personalized medication created to meet unique patient needs. If you can't take standard drugs due to allergies or need a specific dosage not commercially available, a pharmacist can mix ingredients to make a drug specifically for you.

194 services59 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.

131 services124 patients

Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, single level 64483

This procedure involves injecting a mix of numbing and anti-inflammatory medication into a specific nerve root in the lower back. It helps manage pain and reduce inflammation. The process is guided by imaging technology for precision.

125 services84 patients

Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306

An initial nursing facility visit is your first meeting with your healthcare team at a nursing facility. Lasting typically 45 minutes, this appointment involves a comprehensive health assessment and the creation of your personalized care plan. It's a crucial step to ensure your health and well-being.

120 services113 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.

117 services117 patients

Aspiration and/or injection of fluid from large joint 20610

This procedure involves using a needle to remove (aspiration) or introduce (injection) fluid into a large joint like the knee or hip. It can help diagnose conditions, relieve discomfort, or deliver medication directly to the joint.

111 services67 patients

Injection, ketorolac tromethamine, per 15 mg J1885

Ketorolac tromethamine is a medication administered through injection, often used to manage moderate to severe pain. Each 15 mg dose helps to reduce hormones causing inflammation and pain in the body. It is not recommended for long-term use.

110 services35 patients

Insertion of spinal neurostimulator electrode array through skin 63650

This procedure involves placing a small device, called a neurostimulator electrode array, under your skin near your spine. It delivers mild electrical signals to your spinal cord, helping to manage chronic pain.

87 services35 patients

Injection of anesthetic and/or steroid drug into sacral spine nerve root using imaging guidance, each additional level 64484

This procedure involves injecting an anesthetic or steroid drug into the sacral spine nerve root. It's done under imaging guidance to ensure accuracy. The process can be repeated for each additional level of the spine to help manage pain or inflammation.

87 services58 patients

Electronic analysis and reprogramming of spinal canal drug infusion pump 62368

This procedure involves the use of technology to assess and adjust a medication pump, implanted near the spine. The pump delivers precise doses of medication directly into the spinal canal to manage pain or spasticity. The reprogramming ensures optimal treatment.

73 services22 patients

Injection of drug or substance under skin or into muscle 96372

This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.

73 services46 patients

Injection of upper or middle spine facet joint using imaging guidance, single level 64490

This procedure involves injecting medication into a joint in your upper or middle spine. It's performed under imaging guidance for precision. The aim is to reduce inflammation and pain. It's a single-level process, meaning one joint is treated at a time.

66 services48 patients

Injection of lower or sacral spine facet joint using imaging guidance, second level 64494

This procedure involves injecting medication into the facet joints of your lower or sacral spine to manage pain. Imaging guidance ensures accurate placement. It's the second level, meaning it's done on two different joint levels.

65 services46 patients

Injection of lower or sacral spine facet joint using imaging guidance, single level 64493

This procedure involves injecting medication into the facet joint in your lower back or sacral spine. It's done under imaging guidance to ensure accuracy. The aim is to alleviate pain and inflammation. It's a safe, often effective method for managing spinal discomfort.

64 services46 patients

Injection of upper or middle spine facet joint using imaging guidance, second level 64491

This procedure involves injecting medication into the upper or middle spine facet joint, a small joint in your back. This is done under imaging guidance for precision. It's a second-level procedure, meaning it's done on two separate joints. It can help reduce pain and inflammation.

63 services47 patients

Electronic analysis of spinal canal drug infusion pump 62367

Electronic analysis of a spinal canal drug infusion pump is a procedure to check how well your medication pump is functioning. This pump delivers pain-relieving drugs directly to your spinal canal. The analysis ensures the correct dosage and proper functioning of the device.

62 services30 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

60 services60 patients

Testing for presence of drug, by chemistry analyzers 80307

Chemistry analyzers are used to detect the presence of drugs in your system. This test involves taking a small sample of your blood or urine. The sample is then analyzed for specific substances. The results help in understanding your health condition better.

46 services45 patients

X-ray lower and sacral spine, minimum of 6 views 72114

An X-ray of the lower and sacral spine involves capturing images of the bones in your lower back and tailbone area. It helps to identify issues like fractures, infections, or degenerative diseases. A minimum of 6 views ensures a comprehensive examination.

45 services44 patients

Smoking and tobacco use intensive counseling, 4-10 minutes 99406

This service provides brief, intensive counseling (4-10 minutes) to support you in quitting smoking or tobacco use. It involves discussing the risks of tobacco use, benefits of quitting, and strategies to help you stop. It's a critical step towards a healthier lifestyle.

45 services22 patients

Removal of bone from lower spine for decompression of nerve tissue using imaging guidance, accessed through the skin 0275T

This procedure involves removing a small portion of bone from your lower spine. The goal is to relieve pressure on your nerve tissue, improving comfort and mobility. It is done through the skin using imaging technology to ensure precision and safety.

33 services32 patients

Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more 99306

33 services32 patients

Injection of trigger points, 3 or more muscles 20553

Trigger point injection therapy involves injecting medication into specific areas of your muscles, known as trigger points. These are areas that produce pain and discomfort. If you have three or more muscles affected, each will be treated individually.

31 services21 patients

Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and G0180

This is a service where a doctor or authorized practitioner certifies that you require Medicare-covered home health services. They will communicate with the home health agency and review reports on your health status to ensure you receive appropriate care. This does not involve an in-person visit.

28 services28 patients

Injection of trigger points, 1-2 muscles 20552

Trigger point injection is a procedure used to treat painful areas of muscle that contain trigger points, or knots of muscle that form when muscles do not relax. 1-2 muscles are typically treated in one session. The procedure involves injecting medications into these points to alleviate pain.

27 services21 patients

Insertion or replacement of spinal neurostimulator generator or receiver 63685

The insertion of a spinal neurostimulator generator or receiver is a procedure to manage chronic pain. A small device is implanted under your skin, which sends mild electrical signals to your spinal cord. These signals disrupt pain signals, helping to reduce discomfort.

24 services22 patients

Injection of anesthetic agent and/or steroid into suprascapular shoulder nerve 64418

This is a procedure where a medicine, often a mix of a numbing agent and a steroid, is injected into the suprascapular nerve in your shoulder. It's usually done to help manage shoulder pain, decrease inflammation, and improve mobility.

22 services16 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.

22 services22 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.

19 services19 patients

Physician or allowed practitioner re-certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians a G0179

This procedure involves a doctor or approved practitioner reviewing your health status and re-certifying your need for Medicare-covered home health services. It includes communication with the home health agency and assessment of your health reports, even when you're not physically present.

18 services15 patients

X-ray of upper spine, 6 or more views 72052

An X-ray of the upper spine with 6 or more views involves capturing multiple images of your neck and upper back. This non-invasive procedure helps doctors visualize the bones and joints, aiding in diagnosing conditions such as arthritis, fractures, or spinal deformities.

17 services17 patients

X-ray of knee, 3 views 73562

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

17 services12 patients

Aspiration and/or injection of fluid from large joint 20610

16 services12 patients

Fluoroscopic guidance for needle placement 77002

Fluoroscopic guidance for needle placement is a medical procedure that uses a special X-ray technology to help accurately place a needle in the body. It's often used in biopsies, injections or other treatments to ensure precision and safety.

15 services12 patients

Injection into tendon or ligament 20550

An injection into a tendon or ligament involves placing medication directly into these areas to help reduce inflammation and pain. It's often used for conditions like arthritis or tendonitis. The procedure is quick and usually involves a local anesthetic.

14 services13 patients

Injection of substance into lower spine canal using imaging guidance 62323

This procedure involves injecting a substance into your lower spine canal, guided by real-time images. It's done to diagnose or treat various conditions. You may feel slight discomfort, but it's generally safe and can provide valuable information for your treatment plan.

13 services11 patients

Insertion of programmable spinal canal drug infusion pump 62362

The insertion of a programmable spinal canal drug infusion pump is a procedure that involves placing a small pump under your skin. This pump delivers medication directly into your spinal canal to help manage chronic pain or muscle spasticity. It's often adjustable for personalized treatment.

13 services13 patients

Referred Medical Equipment & Supplies CMS DME claims 16

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

Walker, folding, wheeled, adjustable or fixed height E0143

DME-Other DME · category DE000N

3 suppliers12 claims12 services$60.67 avg. paid by Medicare

Seat attachment, walker E0156

DME-Other DME · category DE000N

3 suppliers12 claims12 services$17.39 avg. paid by Medicare

Hospital bed, semi-electric (head and foot adjustment), with any type side rails, with mattress E0260

DME-Hospital Beds · category DB000N

3 suppliers115 claims129 services$67.78 avg. paid by Medicare

Patient lift, hydraulic or mechanical, includes any seat, sling, strap(s) or pad(s) E0630

DME-Other DME · category DE000N

2 suppliers17 claims23 services$47.55 avg. paid by Medicare

Heel loop/holder, any type, with or without ankle strap, each E0951

DME-Wheelchairs · category DD000N

2 suppliers51 claims101 services$13.15 avg. paid by Medicare

Manual wheelchair accessory, anti-tipping device, each E0971

DME-Wheelchairs · category DD021N

1 supplier50 claims100 services$32.70 avg. paid by Medicare

Wheelchair accessory, adjustable height, detachable armrest, complete assembly, each E0973

DME-Wheelchairs · category DD021N

2 suppliers52 claims103 services$62.41 avg. paid by Medicare

General use wheelchair seat cushion, width less than 22 inches, any depth E2601

DME-Wheelchairs · category DD021N

2 suppliers51 claims51 services$40.79 avg. paid by Medicare

General use wheelchair back cushion, width less than 22 inches, any height, including any type mounting hardware E2611

DME-Wheelchairs · category DD021N

1 supplier50 claims50 services$188.30 avg. paid by Medicare

Standard wheelchair K0001

DME-Wheelchairs · category DD000N

2 suppliers474 claims545 services$26.71 avg. paid by Medicare

Lightweight wheelchair K0003

DME-Wheelchairs · category DD000N

2 suppliers30 claims30 services$44.59 avg. paid by Medicare

Elevating leg rests, pair (for use with capped rental wheelchair base) K0195

DME-Wheelchairs · category DD021N

1 supplier26 claims35 services$11.11 avg. paid by Medicare

Repair or nonroutine service for durable medical equipment other than oxygen equipment requiring the skill of a technician, labor component, per 15 minutes K0739

DME-Other DME · category DE000N

4 suppliers11 claims52 services$19.22 avg. paid by Medicare

Cervical, multiple post collar, occipital/mandibular supports, adjustable L0180

DME-Orthotic Devices · category DF000N

2 suppliers25 claims25 services$370.24 avg. paid by Medicare

Lumbar-sacral orthosis, sagittal control, with rigid anterior and posterior panels, posterior extends from sacrococcygeal junction to t-9 vertebra, produces intracavitary pressure to reduce load on the intervertebral discs, includes straps, closures, may include padding, shoulder straps, pendulous abdomen design, prefabricated, off-the-shelf L0648

DME-Orthotic Devices · category DF007N

1 supplier39 claims39 services$624.31 avg. paid by Medicare

Wrist hand orthosis, wrist extension control cock-up, non molded, prefabricated, off-the-shelf L3908

DME-Orthotic Devices · category DF000N

1 supplier12 claims17 services$56.91 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 4

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

DR. MYTHRI SHANKAR M.D.

Nuclear Medicine

43847 HEATON AVE
LANCASTER, CA 93534

Los Angeles County (661) 414-5156

MR. PIERRE S HENDRICKS MD

Orthopaedic Surgery

43847 HEATON AVE, STE I
LANCASTER, CA 93534

Los Angeles County (661) 951-0123

ROBERT R. LAWRENCE, M.D.

Specialist

43847 HEATON AVE, SUITE I
LANCASTER, CA 93534

Los Angeles County (661) 947-3299

A V REHAB SPECIALISTS, LLC

Physical Medicine & Rehabilitation

43847 HEATON AVE, SUITE J
LANCASTER, CA 93534

Los Angeles County (661) 729-3388

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 Thomas Nasser's NPI number?

The NPI number for Thomas Nasser is 1073594636. It was assigned to this individual provider in the NPPES registry on November 10, 2005.

Where is Thomas Nasser located?

Thomas Nasser practices at 43847 Heaton Ave Suite J, Lancaster, CA 93534. The listed phone number is (661) 729-3388.

What is Thomas Nasser's specialty?

The primary specialty registered for this NPI is Physical Medicine & Rehabilitation with taxonomy code 208100000X.

Is Thomas Nasser enrolled in Medicare?

Yes. Thomas Nasser 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 Thomas Nasser's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Thomas Nasser reassigns Medicare benefits to 2 organizations: Embassy Surgery Center, LLC (Lancaster, CA) and Avors Medical Group (Lancaster, CA). 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 Thomas Nasser's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Thomas Nasser was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.