1. Home
  2. Directory
  3. California
  4. Daly City
  5. Internal Medicine
  6. NPI Profile

DR. JOHN O LAI M.D.
NPI 1457398406
Internal Medicine in Daly City, CA

Active since May 31, 2006PECOS EnrolledAccepts Medicare Assignment
1500 SOUTHGATE AVE, SUITE 115, DALY CITY, CA 94015(650) 991-4463 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. John O Lai M.d. NPPES

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

DR. JOHN O LAI M.D. (NPI 1457398406) is an individual internal medicine provider in Daly City, California, licensed in California (G78359) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (1992).

NPPES Registry Identity

NPI1457398406
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. JOHN O LAICredential: M.D.
Location Address1500 SOUTHGATE AVE, SUITE 115Daly City, CA 94015-2259
Mailing Address1500 Southgate Ave, Suite 115Daly City, CA 94015-2259 · (650) 991-4463
Phone(650) 991-4463
Sole ProprietorNo
Medical School CMSUniversity Of Kansas School Of Med (kc/wich/sal)Graduated 1992
Enumeration DateMay 31, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1457398406 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · G78359
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
1500 SOUTHGATE AVE, Daly City, CA 94015
Open in Google Maps ↗

Other Identifiers 3

Medicare ID-Type Unspecified00G783590CA
Medicaid00G783590CA
Medicare UPING05158CA

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. John O Lai 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 ID1850316290
PECOS Enrollment IDI20051013001046
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 10

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 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.
535 services245 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.
135 services21 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.
123 services91 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.
84 services84 patients
Administration of influenza virus vaccine G0008
The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.
80 services80 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
41 services37 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94015 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
$153.83 typical visit price
range $69.00 – $202.35
Typical copayment $38.45 (range $17.25 – $50.58)
Most-billed visit code 99204
Established Patient
$119.48 typical visit price
range $23.44 – $166.46
Typical copayment $29.87 (range $5.86 – $41.61)
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.

Referred Medical Equipment & Supplies CMS DME claims 12

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
9 suppliers23 claims82 services$5.18 avg. paid by Medicare
Insertion tray with drainage bag with indwelling catheter, foley type, two-way latex with coating (teflon, silicone, silicone elastomer or hydrophilic, etc.) A4314
DME-Orthotic Devices · category DF000N
1 supplier25 claims25 services$22.45 avg. paid by Medicare
Urinary catheter anchoring device, adhesive skin attachment, each A4333
DME-Orthotic Devices · category DF000N
1 supplier20 claims240 services$2.03 avg. paid by Medicare
Bedside drainage bag, day or night, with or without anti-reflux device, with or without tube, each A4357
DME-Orthotic Devices · category DF000N
1 supplier26 claims26 services$8.65 avg. paid by Medicare
Appliance cleaner, incontinence and ostomy appliances, per 16 oz. A5131
DME-Orthotic Devices · category DF000N
1 supplier22 claims22 services$13.89 avg. paid by Medicare
Parenteral nutrition solution, not otherwise specified, 10 grams lipids B4185
Other-Enteral and Parenteral · category OB005N
1 supplier34 claims694 services$10.87 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. MARY CATHERINE TAYLOR SIEBEL PHD
Psychologist (Clinical)
1500 SOUTHGATE AVE, SUITE 301
DALY CITY, CA 94015
San Mateo County (415) 455-9572
MAHASTI SAGHIZADEH DDS
Dentist (Periodontics)
1500 SOUTHGATE AVE, 208
DALY CITY, CA 94015
San Mateo County (650) 756-0938
EDWARD SUN M.D., INC.
Orthopaedic Surgery (Orthopaedic Surgery of the Spine)
1500 SOUTHGATE AVE, SUITE 115
DALY CITY, CA 94015
San Mateo County (650) 991-4466
JEFF GEE MD INC
Family Medicine
1500 SOUTHGATE AVE, SUITE 102
DALY CITY, CA 94015
San Mateo County (650) 755-3000
KEVIN MINGYIU WONG M.D.
Internal Medicine
1500 SOUTHGATE AVE, #115
DALY CITY, CA 94015
San Mateo County (650) 991-4466
PING H CHOW MD
Internal Medicine (Cardiovascular Disease)
1500 SOUTHGATE AVE, SUITE 207
DALY CITY, CA 94015
San Mateo County (650) 755-9108
DENNIS L. HAMBY, MD
Internal Medicine (Gastroenterology)
1500 SOUTHGATE AVE, 201
DALY CITY, CA 94015
San Mateo County (650) 997-0555
DR. GEORGE W ALLMAN M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
1500 SOUTHGATE AVE, SUITE 209
DALY CITY, CA 94015
San Mateo County (650) 991-2662

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 John Lai's NPI number?

The NPI number for John Lai is 1457398406. It was assigned to this individual provider in the NPPES registry on May 31, 2006.

Where is John Lai located?

John Lai practices at 1500 Southgate Ave Suite 115, Daly City, CA 94015. The listed phone number is (650) 991-4463.

What is John Lai's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is John Lai enrolled in Medicare?

Yes. John Lai 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 John Lai was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.