DAVID TAY M.D.
NPI 1962440263
Specialist in Fremont, CA

Q: What is David Tay's NPI number?

The NPI number for David Tay is 1962440263. It was assigned to this individual provider in the NPPES registry on June 2, 2006. The provider is also known as David Tay M.D..

Q: What is David Tay's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Q: When was this NPI record last updated?

The NPPES record for David Tay was last updated on May 18, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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 02, 2006PECOS EnrolledAccepts Medicare Assignment

39233 LIBERTY ST, FREMONT, CA 94538(510) 795-8186(510) 792-8186 Get Directions Write a Review

NPPES record last updated: May 18, 2011. Verified against the NPPES registry weekly; last sync: October 25, 2026.

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About David Tay M.d. NPPES

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

DAVID TAY M.D. (NPI 1962440263) is an individual specialist in Fremont, California, licensed in California (G63140) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS and is a graduate of Other (1986).

NPPES Registry Identity

NPI1962440263

Entity TypeIndividualMale

Primary Taxonomy174400000X

Provider Legal NameDAVID TAYCredential: M.D.

Location Address39233 LIBERTY STFremont, CA 94538-1501

Mailing Address39270 Paseo Padre Pkwy, Suite 518Fremont, CA 94538-1616 · (510) 795-8186 · Fax (510) 792-8186

Phone(510) 795-8186

Fax(510) 792-8186

Sole ProprietorYes

Medical School CMSOtherGraduated 1986

Enumeration DateJune 2, 2006

Last NPPES UpdateMay 18, 2011

✔ NPI 1962440263 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers

Taxonomy Code174400000X

License✔ Licensed in CA · G63140

Definition

An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.

39233 LIBERTY ST, Fremont, CA 94538

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Other Names 1

Professional Name (2)David Tay M.d.

Other Identifiers 5

Medicare UPINE66681CA

Medicaid00G631400CA

Medicare PINBF211ZCA

Medicare PIN00G631400CA

Medicare PIN00G631402CA

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

David Tay 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 ID9830277789

PECOS Enrollment IDI20080417000711

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

Sutter Bay Medical Foundation

12 mi

Multi-Specialty

795 EL CAMINO REAL
Palo Alto, CA 94301

Reassigned Medicare billing, California enrollment
4,479 clinicians in this Medicare group

NPI 1013950807 (650) 321-4121

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 15

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 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.

734 services160 patients

Dialysis services, 4 or more physician visits per month (20 years or older) 90960

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can't do their job. This service includes 4 or more visits per month with a physician to monitor your health and adjust your treatment as needed.

675 services73 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.

422 services210 patients

Hemodialysis procedure with physician evaluation 90935

Hemodialysis is a treatment that uses a machine to filter waste and excess fluid from your blood when your kidneys can't. A physician checks your health before, during, and after the procedure to ensure it's working effectively for you.

245 services61 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.

200 services125 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.

65 services52 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.

60 services44 patients

Dialysis services, 2-3 physician visits per month (20 years or older) 90961

Dialysis is a treatment that performs the function of healthy kidneys if they're not working properly. It removes waste and excess fluid from your blood. 2-3 physician visits per month are recommended for monitoring your health and adjusting your treatment as needed. This service is available for those aged 20 years and older.

42 services27 patients

Hemodialysis procedure requiring repeated evaluation 90937

Hemodialysis is a treatment that filters waste and excess fluids from your blood when your kidneys can't do this adequately. It's an ongoing process, requiring regular evaluations to monitor and adjust the treatment for optimal results.

32 services16 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.

22 services19 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

22 services15 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

22 services18 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

21 services21 patients

Dialysis services, 1 physician visit per month (20 years or older) 90962

Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys canâ€™t do their job. A physician visit once a month ensures your treatment is working effectively and adjusts it if necessary. This service is available for individuals aged 20 years and older.

18 services11 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

14 services12 patients

Other Providers at the Same Location NPPES 7

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

STRONG AND TAY MDS

Specialist

39233 LIBERTY ST
FREMONT, CA 94538

Alameda County (510) 795-8186

KULJIT KAUR MUHAR D.C.

Chiropractor

39233 LIBERTY ST, SUITE C
FREMONT, CA 94538

Alameda County (510) 796-7000

FREMONT NEPHROLOGY PROF CORP

Internal Medicine (Nephrology)

39233 LIBERTY ST
FREMONT, CA 94538

Alameda County (510) 795-8186

MABEL SMITH NP

Nurse Practitioner

39233 LIBERTY ST
FREMONT, CA 94538

Alameda County (510) 795-8186

MS. CECILLIA Y SUN R.D.

Dietitian, Registered (Nutrition, Renal)

39233 LIBERTY ST
FREMONT, CA 94538

Alameda County (510) 795-8186

SHALINI SUNDAR M.D.

Internal Medicine (Nephrology)

39233 LIBERTY ST
FREMONT, CA 94538

Alameda County (510) 795-8186

HOWARD EVAN STRONG M.D.

Specialist

39233 LIBERTY ST
FREMONT, CA 94538

Alameda County (510) 795-8186

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 David Tay's NPI number?

The NPI number for David Tay is 1962440263. It was assigned to this individual provider in the NPPES registry on June 2, 2006. The provider is also known as David Tay M.D..

Where is David Tay located?

David Tay practices at 39233 Liberty St, Fremont, CA 94538. The listed phone number is (510) 795-8186.

What is David Tay's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is David Tay enrolled in Medicare?

Yes. David Tay 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 David Tay's services?

According to the CMS Revalidation Reassignment List (October 2026 release), David Tay reassigns Medicare benefits to Sutter Bay Medical Foundation (Palo Alto, 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 David Tay'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 David Tay was last updated on May 18, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.