Active NPI 1962440263 Individual Practitioner Male Practitioner

Dr. David Tay , MD

Specialist • Fremont, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. David Tay, MD is a certified Specialist practicing in Fremont, CA. With approximately 40 years of clinical experience since completing medical education in 1986, Dr. Tay delivers high-quality medical care to the local community at 39233 LIBERTY ST.

Dr. Tay is affiliated with Sutter Bay Medical Foundation and accepts Medicare assignment.

Frequently performed procedures and clinical services include subsequent hospital care with moderate levelof medical decision making, if using time, at least, dialysis services, established patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

39233 Liberty St

Fremont, CA 945381501

Telephone 5107958186

Fax 5107928186

Associated Practice Facility / Clinic

🏢 Strong And Tay Mds Facility NPI 1295810729

Medicare Profile & Education

Medical School

Other

Graduation Year

1986

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Specialist in Fremont, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

40 Yrs +5.4 yrs vs City Avg

City Avg: 34.6 Yrs

State Avg: 38.0 Yrs

Regional Practice Density

26 Specialists

Practicing in Fremont, CA (6446 Statewide)

Telehealth Adoption Rate

3.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

46.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Tay (40 Years) 40 Yrs

Fremont Specialty Average (34.6 Years) 34.6 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	734	160	$140.00	$93.12
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	675	73	$800.00	$426.60
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	422	210	$241.24	$157.58
90935 Hemodialysis procedure with physician evaluation	245	61	$125.00	$83.52
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	200	125	$380.00	$204.59
99213 Established patient office or other outpatient visit, typically 15 minutes	65	52	$203.58	$110.59
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	60	44	$196.00	$140.06
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	42	27	$750.00	$355.34
90937 Hemodialysis procedure requiring repeated evaluation	32	16	$202.00	$120.13
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	22	19	$281.00	$172.04
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	22	15	$322.45	$224.30
99231 Follow-up hospital inpatient care per day, typically 15 minutes	22	18	$80.00	$57.70
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	21	21	$569.29	$267.11
90962 Dialysis services, 1 physician visit per month (20 years or older)	18	11	$700.00	$248.17
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	14	12	$210.00	$115.68

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	1,142	213	$140.00	$89.67
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	655	83	$800.00	$406.17
90935 Hemodialysis procedure with physician evaluation	437	83	$125.00	$80.66
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	391	200	$233.24	$150.04
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	241	155	$380.00	$196.56
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	113	68	$196.00	$134.84
90937 Hemodialysis procedure requiring repeated evaluation	95	39	$202.00	$115.33
99213 Established patient office or other outpatient visit, typically 15 minutes	90	72	$173.33	$104.09
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	69	41	$750.00	$339.54
99231 Follow-up hospital inpatient care per day, typically 15 minutes	58	37	$80.00	$55.56
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	40	40	$480.23	$259.80
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	29	21	$324.03	$213.73
90962 Dialysis services, 1 physician visit per month (20 years or older)	19	13	$700.00	$236.30
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	14	14	$281.00	$163.38

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	994	210	$140.00	$80.01
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	807	91	$800.00	$410.56
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	432	208	$235.82	$146.79
90935 Hemodialysis procedure with physician evaluation	313	71	$125.00	$81.82
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	240	169	$380.00	$222.16
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	197	97	$196.00	$114.99
99213 Established patient office or other outpatient visit, typically 15 minutes	106	82	$174.58	$97.55
90937 Hemodialysis procedure requiring repeated evaluation	64	35	$202.00	$117.41
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	59	37	$750.00	$342.60
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	32	32	$415.00	$254.98
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	24	21	$345.67	$209.41
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	11	11	$281.00	$165.35

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	1,234	228	$140.00	$81.38
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	834	95	$800.00	$414.74
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	480	226	$237.15	$140.30
90935 Hemodialysis procedure with physician evaluation	289	76	$125.00	$82.76
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	249	183	$380.00	$226.82
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	226	100	$196.00	$117.02
99213 Established patient office or other outpatient visit, typically 15 minutes	103	81	$170.63	$98.20
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	71	44	$750.00	$341.29
90937 Hemodialysis procedure requiring repeated evaluation	61	34	$202.00	$119.17
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	46	46	$469.22	$255.68
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	15	14	$281.00	$167.91
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	13	11	$281.00	$204.39

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	1,379	249	$140.00	$82.86
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	887	103	$800.00	$332.16
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	426	224	$234.58	$114.15
90935 Hemodialysis procedure with physician evaluation	397	80	$125.00	$83.99
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	263	193	$380.00	$231.21
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	80	53	$196.00	$119.53
90937 Hemodialysis procedure requiring repeated evaluation	63	31	$202.00	$120.17
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	61	42	$750.00	$280.28
99443 Telephone medical discussion with physician, 21-30 minutes	52	46	$196.13	$96.05
99213 Established patient office or other outpatient visit, typically 15 minutes	36	35	$167.22	$69.12
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	33	33	$380.00	$183.09
90962 Dialysis services, 1 physician visit per month (20 years or older)	22	15	$700.00	$219.26
99442 Telephone medical discussion with physician, 11-20 minutes	16	14	$169.81	$66.72

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	1,314	246	$140.00	$82.00
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	922	110	$800.00	$326.12
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	539	255	$235.61	$129.03
90935 Hemodialysis procedure with physician evaluation	426	100	$125.00	$82.47
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	317	223	$380.00	$227.59
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	89	63	$196.00	$117.18
90937 Hemodialysis procedure requiring repeated evaluation	74	46	$202.00	$117.80
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	57	41	$750.00	$274.97
90947 Dialysis procedure requiring repeat evaluation	44	14	$205.00	$139.85
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	38	38	$357.89	$192.13
90962 Dialysis services, 1 physician visit per month (20 years or older)	17	13	$700.00	$214.74

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	1,183	236	$140.00	$81.19
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	887	97	$800.00	$320.80
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	530	242	$236.42	$126.22
90935 Hemodialysis procedure with physician evaluation	377	84	$125.00	$80.70
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	292	205	$380.00	$225.95
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	81	61	$196.00	$116.27
90937 Hemodialysis procedure requiring repeated evaluation	77	34	$202.00	$115.48
90947 Dialysis procedure requiring repeat evaluation	74	14	$205.00	$137.16
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	67	48	$750.00	$270.62
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	36	36	$348.17	$189.99

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	1,445	258	$140.00	$79.39
90960 Dialysis services, 4 or more physician visits per month (20 years or older)	940	103	$800.00	$315.09
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	514	251	$238.19	$123.42
90935 Hemodialysis procedure with physician evaluation	440	90	$125.00	$78.98
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	323	230	$380.00	$222.24
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	146	81	$196.00	$114.59
90937 Hemodialysis procedure requiring repeated evaluation	101	48	$202.00	$113.86
90961 Dialysis services, 2-3 physician visits per month (20 years or older)	74	48	$750.00	$263.82
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	45	45	$365.64	$185.63
90962 Dialysis services, 1 physician visit per month (20 years or older)	19	17	$700.00	$206.07

Medical Specialties & State Licenses

Specialist Primary Specialty

NUCC Taxonomy Code: 174400000X

State License CA G63140

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

00G631400 (CA)

Hospital & Practice Group Affiliations

Sutter Bay Medical Foundation

3200 Kearney St, Fremont, CA 945382299

Phone: 5104901222

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

4 Associated Practitioners

Mabel Smith , NP

Nurse Practitioner

NPI 1376397190

Nurse Practitioner

Cecillia Sun , RD

Dietitian, Registered - Nutrition, Renal

NPI 1609192335

Registered Dietitian

Dr. Shalini Sundar , MD

Internal Medicine - Nephrology

NPI 1780607838

Doctor of Medicine (M.D.)

Dr. Howard Strong , MD

Specialist

NPI 1871531178

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

6 Historical Events

✅

NPI Profile Active May 18, 2011

NPI status registered as active in NPPES database

📍

Updated Practice Location May 18, 2011

Registered at 39233 LIBERTY ST, FREMONT, CA 945381501 (Tel: 5107958186)

📍

Updated Business Mailing Address May 18, 2011

Registered at 39270 PASEO PADRE PKWY, SUITE 518, FREMONT, CA 945381616 (Tel: 5107958186)

👤

Provider Name / Credentials Updated May 18, 2011

Recorded as DAVID TAY, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) May 18, 2011

Specialist (License #G63140 in CA)

🟢

Initial NPI Registration & Enumeration June 02, 2006

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1962440263

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: June 02, 2006

Last Update: May 18, 2011

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

39270 Paseo Padre Pkwy, Suite 518

Fremont, CA 945381616

Phone: 5107958186

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.