DR. SABA HAMIDUZZAMAN M.D.
NPI 1700011004
Internal Medicine - Pulmonary Disease in Irvine, CA

Q: What is Saba Hamiduzzaman's NPI number?

The NPI number for Saba Hamiduzzaman is 1700011004. It was assigned to this individual provider in the NPPES registry on May 16, 2009.

Q: What is Saba Hamiduzzaman'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 Saba Hamiduzzaman was last updated on January 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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 May 16, 2009PECOS EnrolledAccepts Medicare Assignment

85.18/100

CMS Quality Rating

1000 FIVEPOINT, IRVINE, CA 92618(800) 826-4673 Get Directions Write a Review

NPPES record last updated: January 15, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jan 15, 2026, Nov 30, 2021, Nov 20, 2019 (3 updates tracked since 2019).

On this page

About Dr. Saba Hamiduzzaman M.d. NPPES

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

DR. SABA HAMIDUZZAMAN M.D. (NPI 1700011004) is an individual pulmonary disease provider in Irvine, California, licensed in California (A142766) and active in the NPI registry since May 2009. She is enrolled in Medicare PECOS, maintains a secondary practice location in Huntington Beach, and is a graduate of Other (2009).

NPPES Registry Identity

NPI1700011004

Entity TypeIndividualFemale

Primary Taxonomy207RP1001X

Provider Legal NameDR. SABA HAMIDUZZAMANCredential: M.D.

Location Address1000 FIVEPOINTIrvine, CA 92618-2621

Mailing AddressPo Box 512185Los Angeles, CA 90051-0185

Phone(800) 826-4673

Sole ProprietorYes

Medical School CMSOtherGraduated 2009

Enumeration DateMay 16, 2009

Last NPPES UpdateJanuary 15, 20263 updates tracked since enumeration

NPPES CertifiedJanuary 15, 2026

✔ NPI 1700011004 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 · A142766

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 A142766 (CA)

Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License A142766 (CA)

1000 FIVEPOINT, Irvine, CA 92618

Open in Google Maps ↗

Secondary Practice Location 1

Location 12100 Main St Ste 300Huntington Beach, CA 92648-2489 · Phone (714) 252-9415 · Fax (714) 963-8407

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. Saba Hamiduzzaman 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 ID6608162375

PECOS Enrollment IDI20160906001689

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 12

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.

166 services76 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.

153 services107 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.

73 services73 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.

67 services49 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.

51 services50 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.

42 services41 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.

42 services42 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.

30 services27 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.

29 services12 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.

27 services26 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.

16 services16 patients

Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg J7613

Albuterol is a medication used to treat breathing problems. It is administered as an inhalation solution through a device called DME (Durable Medical Equipment). The solution is FDA-approved and non-compounded. Each unit dose contains 1 mg of the medicine.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92618 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.

85.18/100

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

Scored as part of a group practice

Quality

71.81

Promoting Interoperability

Improvement Activities

Cost

64.54

Reported Quality Measures

Pneumococcal Vaccination Status for Older Adults

Percentage of patients 65 years of age and older who have ever received a pneumococcal vaccine

100%80 patients5/55-star benchmark: 100%

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Referred Medical Equipment & Supplies CMS DME claims 15

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

Filter, disposable, used with positive airway pressure device A7038

DME-Other DME · category DE001N

3 suppliers13 claims75 services$1.75 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

3 suppliers48 claims49 services$14.28 avg. paid by Medicare

Portable oxygen contents, gaseous, 1 month's supply = 1 unit E0443

DME-Oxygen and Supplies · category DC000N

1 supplier12 claims12 services$36.08 avg. paid by Medicare

Home ventilator, any type, used with invasive interface, (e.g., tracheostomy tube) E0465

DME-Other DME · category DE005N

2 suppliers30 claims36 services$777.01 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 suppliers34 claims34 services$777.64 avg. paid by Medicare

Nebulizer, with compressor E0570

DME-Other DME · category DE000N

5 suppliers34 claims34 services$4.02 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.

DR. ARNOLD KIM MD

Anesthesiology

1000 FIVEPOINT
IRVINE, CA 92618

Orange County (888) 333-4673

DR. AMY RUTH COPELAND MD

Surgery (Surgical Oncology)

1000 FIVEPOINT, BLDG A
IRVINE, CA 92618

Orange County (949) 671-8000

MRS. AMBER HARDY RICKNER NP

Nurse Practitioner (Acute Care)

1000 FIVEPOINT
IRVINE, CA 92618

Orange County (949) 671-4673

CAROLYN THOMPSON CHUDY DO

Physical Medicine & Rehabilitation (Sports Medicine)

1000 FIVEPOINT
IRVINE, CA 92618

Orange County (800) 826-4673

DR. NGOC N. LE

Radiology (Vascular & Interventional Radiology)

1000 FIVEPOINT
IRVINE, CA 92618

Orange County (800) 826-4673

DR. ANNIE CHEN MD

Internal Medicine (Pulmonary Disease)

1000 FIVEPOINT
IRVINE, CA 92618

Orange County (800) 826-4673

DR. HOSSEIN MEHDIKHANI KARIMABAD M.D.

Radiology (Diagnostic Radiology)

1000 FIVEPOINT
IRVINE, CA 92618

Orange County (847) 342-6842

DR. JUNG WOOK KIM MD

Internal Medicine (Pulmonary Disease)

1000 FIVEPOINT
IRVINE, CA 92618

Orange County (888) 333-4673

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 Saba Hamiduzzaman's NPI number?

The NPI number for Saba Hamiduzzaman is 1700011004. It was assigned to this individual provider in the NPPES registry on May 16, 2009.

Where is Saba Hamiduzzaman located?

Saba Hamiduzzaman practices at 1000 Fivepoint, Irvine, CA 92618. The listed phone number is (800) 826-4673.

What is Saba Hamiduzzaman's specialty?

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

Is Saba Hamiduzzaman enrolled in Medicare?

Yes. Saba Hamiduzzaman 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.

When was this NPI record last updated?

The NPPES record for Saba Hamiduzzaman was last updated on January 15, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 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.