DR. ALVIN CHANG M.D.
NPI 1396857181
Internal Medicine - Geriatric Medicine in Tustin, CA

Q: What is Alvin Chang's NPI number?

The NPI number for Alvin Chang is 1396857181. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Q: What is Alvin Chang's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Q: When was this NPI record last updated?

The NPPES record for Alvin Chang was last updated on September 19, 2016. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since August 31, 2006PECOS EnrolledAccepts Medicare Assignment

15.35/100

CMS Quality Rating

1101 BRYAN AVE, SUITE E, TUSTIN, CA 92780(714) 352-5800(714) 352-5801 Get Directions Write a Review

NPPES record last updated: September 19, 2016. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Dr. Alvin Chang M.d. NPPES

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

DR. ALVIN CHANG M.D. (NPI 1396857181) is an individual geriatric medicine provider in Tustin, California, licensed in California (A55330) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (1994).

NPPES Registry Identity

NPI1396857181

Entity TypeIndividualMale

Primary Taxonomy207RG0300X

Provider Legal NameDR. ALVIN CHANGCredential: M.D.

Location Address1101 BRYAN AVE, SUITE ETustin, CA 92780-4401

Mailing Address1101 Bryan Ave, Suite ETustin, CA 92780-4401 · (714) 352-5800 · Fax (714) 352-5801

Phone(714) 352-5800

Fax(714) 352-5801

Sole ProprietorNo

Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 1994

Enumeration DateAugust 31, 2006

Last NPPES UpdateSeptember 19, 2016

✔ NPI 1396857181 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Geriatric MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RG0300X

License✔ Licensed in CA · A55330

Definition

An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects of illness in the elderly. This specialist cares for geriatric patients in the patient's home, the office, long-term care settings such as nursing homes and the hospital.

1101 BRYAN AVE, Tustin, CA 92780

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Other Identifiers 6

Medicare PINP01210503CA

OtherDT9847CA · Ocsc Group Ptan

Medicaid00A553300CA

Other1699040170CA · Ocsc Group Npi

OtherW18492Medicare Grp Number

Medicare UPING84968

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. Alvin Chang 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 ID2365409232

PECOS Enrollment IDI20041213000274

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 13

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.

Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes 99348

An established patient home visit is a 25-minute appointment where a healthcare provider visits you at your home. This service is for patients who have previously been seen by the provider. It includes a check-up and discussion about your health concerns.

916 services192 patients

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308

A follow-up nursing facility visit per day is a daily check-up service provided by healthcare professionals. It lasts around 15 minutes and involves assessing your health status, monitoring your recovery progress, and addressing any concerns you may have about your health or treatment.

653 services209 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.

250 services148 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

137 services137 patients

Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 99349

An established patient home visit is a medical appointment conducted at your home, typically lasting around 40 minutes. This service is ideal for patients who may find it difficult to travel to a healthcare facility. During this visit, a healthcare professional will evaluate your health status, manage your care, and answer any health-related questions you may have.

119 services85 patients

Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes 99309

A follow-up nursing facility visit per day is a daily check-in by a healthcare professional. This 25-minute visit typically involves monitoring your health progress, addressing any concerns, and adjusting treatment plans as necessary. It's a vital part of ensuring your ongoing wellbeing.

91 services67 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.

49 services16 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.

43 services43 patients

Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more 99308

40 services15 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.

34 services24 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

24 services14 patients

Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes 99348

22 services11 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.

13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92780 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

$187.60 typical visit price

range $62.96 – $187.60

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

Most-billed visit code 99205

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.

15.35/100

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

Individually scored

Quality

Promoting Interoperability

Improvement Activities

Cost

51.17

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.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

7 suppliers45 claims98 services$5.88 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

5 suppliers34 claims41 services$0.93 avg. paid by Medicare

Alginate or other fiber gelling dressing, wound cover, sterile, pad size 16 sq. in. or less, each dressing A6196

DME-Medical/Surgical Supplies · category DA023N

2 suppliers11 claims330 services$6.33 avg. paid by Medicare

Enteral feeding supply kit; syringe fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4034

Other-Enteral and Parenteral · category OB006N

1 supplier11 claims324 services$2.58 avg. paid by Medicare

Enteral feeding supply kit; pump fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4035

Other-Enteral and Parenteral · category OB006N

4 suppliers15 claims423 services$4.37 avg. paid by Medicare

Enteral formula, nutritionally complete, hydrolyzed proteins (amino acids and peptide chain), includes fats, carbohydrates, vitamins and minerals, may include fiber, administered through an enteral feeding tube, 100 calories = 1 unit B4153

Other-Enteral and Parenteral · category OB006N

1 supplier11 claims3,240 services$1.08 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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Other Providers at the Same Location NPPES 11

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

DR. BRETT PATRICK BOWMAN O.D.

Optometrist

1101 BRYAN AVE, STE. A-1
TUSTIN, CA 92780

Orange County (714) 544-4810

JOSEPH SPENCER SWICKARD M.D.

Orthopaedic Surgery

1101 BRYAN AVE, STE A
TUSTIN, CA 92780

Orange County (714) 832-4731

ARTHUR TURK, M.D., INC

Allergy & Immunology

1101 BRYAN AVE, SUITE B
TUSTIN, CA 92780

Orange County (714) 838-2617

OPTIMUM DME INC

Durable Medical Equipment & Medical Supplies

1101 BRYAN AVE, SUITE E
TUSTIN, CA 92780

Orange County (714) 352-5800

FAMILY ORTHODONTICS

Dentist (Orthodontics and Dentofacial Orthopedics)

1101 BRYAN AVE, SUITE C
TUSTIN, CA 92780

Orange County (714) 544-0200

DR. EVA ECKFELD KATZ M.D.

Family Medicine

1101 BRYAN AVE, STE E
TUSTIN, CA 92780

Orange County (562) 981-2900

DR. ARTHUR TURK MD

Allergy & Immunology

1101 BRYAN AVE, SUITE B
TUSTIN, CA 92780

Orange County (714) 838-2617

BRETT P BOWMAN O D ASSOCIATES P S

Optometrist

1101 BRYAN AVE, STE. A-1
TUSTIN, CA 92780

Orange County (714) 544-4810

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 Alvin Chang's NPI number?

The NPI number for Alvin Chang is 1396857181. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Where is Alvin Chang located?

Alvin Chang practices at 1101 Bryan Ave Suite E, Tustin, CA 92780. The listed phone number is (714) 352-5800.

What is Alvin Chang's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Geriatric Medicine, with taxonomy code 207RG0300X.

Is Alvin Chang enrolled in Medicare?

Yes. Alvin Chang 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 Alvin Chang was last updated on September 19, 2016. NPI Profile syncs with the weekly NPPES data releases published by CMS.