MOSTAFA TABASSOMI MD
NPI 1003042342
Internal Medicine - Pulmonary Disease in Valencia, CA

Q: What is Mostafa Tabassomi's NPI number?

The NPI number for Mostafa Tabassomi is 1003042342. It was assigned to this individual provider in the NPPES registry on June 1, 2009.

Q: What is Mostafa Tabassomi's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Q: When was this NPI record last updated?

The NPPES record for Mostafa Tabassomi was last updated on February 6, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 June 01, 2009PECOS EnrolledAccepts Medicare Assignment

13.37/100

CMS Quality Rating

23838 VALENCIA BLVD STE 304, VALENCIA, CA 91355(661) 430-9030(661) 430-9020 Get Directions Write a Review

NPPES record last updated: February 6, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Feb 6, 2023, Nov 11, 2019, Mar 17, 2018 and 2 more (5 updates tracked since 2017).

On this page

About Mostafa Tabassomi Md NPPES

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

MOSTAFA TABASSOMI MD (NPI 1003042342) is an individual pulmonary disease provider in Valencia, California, licensed in California (A106160) and active in the NPI registry since June 2009. He is enrolled in Medicare PECOS and is a graduate of Other (1999).

NPPES Registry Identity

NPI1003042342

Entity TypeIndividualMale

Primary Taxonomy207RP1001X

Provider Legal NameMOSTAFA TABASSOMICredential: MD

Location Address23838 VALENCIA BLVD STE 304Valencia, CA 91355-5319

Mailing Address25716 Holly Oak CtValencia, CA 91381-0739 · (310) 463-0987 · Fax (661) 430-9020

Phone(661) 430-9030

Fax(661) 430-9020

Sole ProprietorNo

Medical School CMSOtherGraduated 1999

Enumeration DateJune 1, 2009

Last NPPES UpdateFebruary 6, 20235 updates tracked since enumeration

NPPES CertifiedFebruary 6, 2023

✔ NPI 1003042342 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians

Taxonomy Code207RP1001X

License✔ Licensed in CA · A106160

Definition

An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.

Also ListedInternal MedicineTaxonomy 207R00000X · License A106160 (CA)

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License A106160 (CA)

23838 VALENCIA BLVD STE 304, Valencia, CA 91355

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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

Mostafa Tabassomi Md 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 ID2365582913

PECOS Enrollment IDI20091214000067

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 Mostafa Tabassomi reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mostafa Tabassomi MD Inc

Same address

Pulmonary Disease

23838 VALENCIA BLVD STE 304
Valencia, CA 91355

Reassigned Medicare billing, California enrollment

NPI 1568907863 (661) 430-9030

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 21

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.

1,651 services163 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.

826 services270 patients

Evaluation of use of breathing device 94664

The evaluation of a breathing device involves checking how effectively you're using it to manage your respiratory condition. It assesses the device's fit, your comfort, and your technique to ensure optimal results.

536 services176 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.

315 services49 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.

215 services146 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.

167 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.

92 services91 patients

Test to measure expiratory airflow and volume initiated by patient and evaluated by provider 94016

This test, called spirometry, measures how much and how quickly you can move air out of your lungs. You'll breathe into a mouthpiece connected to a machine. Your provider evaluates the results to assess your lung health.

71 services70 patients

Test to measure expiratory airflow and volume changes before and after medication administration 94060

This procedure measures how air flows in and out of your lungs. It's done before and after medication to see if the treatment improves your breathing. It's a simple, non-invasive test that involves breathing into a device called a spirometer.

67 services66 patients

Test to determine lung volumes using gas dilution or washout 94727

This test measures lung volumes by either diluting or washing out a known amount of gas in your lungs. You'll breathe in a harmless gas, then exhale. The exhaled air is analyzed to assess your lung capacity and function.

67 services66 patients

Test to examine how well the lungs exchange gases 94729

This is a test called a pulmonary function test, which helps understand the efficiency of your lungs. It measures how much air your lungs can hold, how quickly you can move air in and out of your lungs, and how well your lungs put oxygen into and remove carbon dioxide from your blood.

67 services66 patients

Aspiration of initial secretion of lung airway using an endoscope 31645

This procedure involves using a thin, flexible tube called an endoscope to collect initial secretions from your lung airway. This helps doctors diagnose and treat respiratory conditions. It's a safe, minimally invasive procedure.

56 services46 patients

Irrigation and suction of lung airways to obtain cells using an endoscope 31624

This is a procedure where a thin, flexible tube called an endoscope is inserted through your mouth into the lungs. A small amount of saline is then introduced to wash the airways. The fluid, along with cells from the lung, is suctioned back for analysis.

49 services44 patients

Emergent insertion of breathing tube into windpipe using an endoscope 31500

This is a procedure where a thin tube is inserted into your windpipe to aid in breathing. It's done in emergency situations, using an endoscope, a tool with a light and camera, to ensure correct placement.

23 services23 patients

Needle biopsy of windpipe cartilage, airway, and/or lung using an endoscope 31629

A needle biopsy of windpipe cartilage, airway, or lung involves using a thin, flexible tube with a camera (endoscope) to access and collect tissue samples. This procedure helps doctors diagnose lung conditions or diseases effectively and safely.

22 services22 patients

Exam of lung airways and sampling of lymph nodes using an endoscope and ultrasound guidance, 1-2 lymph nodes 31652

This procedure involves a special tube with a camera (endoscope) entering your lung airways. Guided by ultrasound, it collects samples from 1-2 lymph nodes. This helps doctors understand and diagnose potential issues in your lungs.

19 services19 patients

Test to measure expiratory airflow and volume initiated by patient and evaluated by provider 94016

17 services17 patients

Test for exercise-induced lung stress 94618

An exercise-induced lung stress test assesses how your lungs respond to physical activity. During the test, you'll exercise on a treadmill or stationary bike while your heart rate, breathing, blood pressure, and oxygen levels are monitored. This helps identify any abnormal lung responses to exercise.

17 services17 patients

Biopsy of lobe of lung using an endoscope, 1 lobe 31628

A lung biopsy is a procedure where a small piece of lung tissue is taken for testing. An endoscope, a flexible tube with a light and camera, is used. It's inserted through the mouth or nose, down the windpipe, and into one lobe of the lung.

15 services15 patients

Computer-assisted image-guided navigation of lung airways using an endoscope 31627

This procedure involves the use of a special camera, called an endoscope, and computer technology to create real-time images of your lung airways. This helps doctors navigate through your lungs accurately, aiding in diagnosis or treatment.

12 services12 patients

Exam of lung airways with diagnostic or therapeutic procedure on growths using an endoscope and ultrasound 31654

This procedure involves using a specialized instrument, called an endoscope, to examine the lung airways. An ultrasound is also used to get a clearer image of any growths. If necessary, the doctor can perform procedures to diagnose or treat these growths.

12 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91355 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

$142.39 typical visit price

range $62.96 – $187.60

Typical copayment $35.59 (range $15.74 – $46.90)

Most-billed visit code 99204

Established Patient

$109.96 typical visit price

range $20.84 – $153.61

Typical copayment $27.49 (range $5.21 – $38.40)

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.

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.

13.37/100

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

Individually scored

Quality

Improvement Activities

Cost

44.59

Referred Medical Equipment & Supplies CMS DME claims 17

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

Tubing with integrated heating element for use with positive airway pressure device A4604

DME-Other DME · category DE001N

2 suppliers16 claims16 services$32.02 avg. paid by Medicare

Administration set, with small volume nonfiltered pneumatic nebulizer, disposable A7003

DME-Other DME · category DE000N

3 suppliers24 claims45 services$1.49 avg. paid by Medicare

Full face mask used with positive airway pressure device, each A7030

DME-Other DME · category DE001N

2 suppliers11 claims11 services$80.40 avg. paid by Medicare

Face mask interface, replacement for full face mask, each A7031

DME-Other DME · category DE001N

2 suppliers12 claims30 services$28.80 avg. paid by Medicare

Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034

DME-Other DME · category DE001N

3 suppliers17 claims17 services$48.98 avg. paid by Medicare

Headgear used with positive airway pressure device A7035

DME-Other DME · category DE001N

3 suppliers19 claims19 services$17.00 avg. paid by Medicare

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

2 suppliers26 claims121 services$1.78 avg. paid by Medicare

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

DME-Oxygen and Supplies · category DC000N

1 supplier105 claims105 services$14.01 avg. paid by Medicare

Home ventilator, any type, used with non-invasive interface, (e.g., mask, chest shell) E0466

DME-Other DME · category DE005N

3 suppliers18 claims18 services$760.18 avg. paid by Medicare

Respiratory assist device, bi-level pressure capability, with back-up rate feature, used with noninvasive interface, e.g., nasal or facial mask (intermittent assist device with continuous positive airway pressure device) E0471

DME-Other DME · category DE001N

1 supplier11 claims11 services$176.15 avg. paid by Medicare

High frequency chest wall oscillation system, with full anterior and/or posterior thoracic region receiving simultaneous external oscillation, includes all accessories and supplies, each E0483

DME-Other DME · category DE000N

1 supplier19 claims19 services$840.83 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

3 suppliers73 claims73 services$3.89 avg. paid by Medicare

Continuous positive airway pressure (cpap) device E0601

DME-Other DME · category DE001N

3 suppliers30 claims30 services$31.74 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

5 suppliers355 claims362 services$70.44 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

5 suppliers234 claims247 services$31.13 avg. paid by Medicare

Albuterol, up to 2.5 mg and ipratropium bromide, up to 0.5 mg, fda-approved final product, non-compounded, administered through dme J7620

DME-Drugs Administered Through DME · category DG006N

6 suppliers72 claims6,240 services$0.09 avg. paid by Medicare

Pharmacy dispensing fee for inhalation drug(s); per 30 days Q0513

DME-Other DME · category DE000N

8 suppliers71 claims71 services$23.45 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 5

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

VIRTUALDOC INC.

Internal Medicine

23838 VALENCIA BLVD STE 304
VALENCIA, CA 91355

Los Angeles County (310) 954-7740

CATALIN NICOLA M.D., PH.D.

Internal Medicine (Pulmonary Disease)

23838 VALENCIA BLVD STE 304
VALENCIA, CA 91355

Los Angeles County (661) 430-9030

CATALIN NICOLA MD. INC

Internal Medicine (Pulmonary Disease)

23838 VALENCIA BLVD STE 304
VALENCIA, CA 91355

Los Angeles County (661) 430-9030

MOSTAFA TABASSOMI MD INC

Internal Medicine (Pulmonary Disease)

23838 VALENCIA BLVD STE 304
VALENCIA, CA 91355

Los Angeles County (661) 430-9030

DR. NASTRAN HASHEMI M.D.

Internal Medicine

23838 VALENCIA BLVD STE 304
VALENCIA, CA 91355

Los Angeles County (310) 954-7740

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 Mostafa Tabassomi's NPI number?

The NPI number for Mostafa Tabassomi is 1003042342. It was assigned to this individual provider in the NPPES registry on June 1, 2009.

Where is Mostafa Tabassomi located?

Mostafa Tabassomi practices at 23838 Valencia Blvd Ste 304, Valencia, CA 91355. The listed phone number is (661) 430-9030.

What is Mostafa Tabassomi's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Mostafa Tabassomi enrolled in Medicare?

Yes. Mostafa Tabassomi 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 Mostafa Tabassomi's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mostafa Tabassomi reassigns Medicare benefits to Mostafa Tabassomi MD Inc (Valencia, CA). 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 Mostafa Tabassomi'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 Mostafa Tabassomi was last updated on February 6, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.