Active NPI 1609903020 Individual Practitioner Male Practitioner

Dr. Christopher Nguyen Ta , MD

Ophthalmology • Stanford, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Christopher Ta, MD is a certified Ophthalmology practicing in Stanford, CA. With approximately 32 years of clinical experience since graduating from University Of Minnesota Medical School in 1994, Dr. Ta delivers high-quality medical care to the local community at 300 PASTEUR DR.

Dr. Ta is affiliated with Stanford Health Care and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, closure of tear duct opening using plug, visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

300 Pasteur Dr

Stanford, CA 943052200

Telephone 6507234000

Associated Practice Facility / Clinic

🏢 Stanford Hospital And Clinic Facility NPI 1285683292

Medicare Profile & Education

Medical School

University Of Minnesota Medical School

Graduation Year

1994

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Ophthalmology in Stanford, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

32 Yrs +18.3 yrs vs City Avg

City Avg: 13.7 Yrs

State Avg: 29.5 Yrs

Regional Practice Density

54 Specialists

Practicing in Stanford, CA (3116 Statewide)

Telehealth Adoption Rate

3.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

69.0% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Ta (32 Years) 32 Yrs

Stanford Specialty Average (13.7 Years) 13.7 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
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	553	249	$131.31	$110.55
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	152	113	$179.13	$163.53
68761 Closure of tear duct opening using plug	125	34	$674.64	$117.57
99213 Established patient office or other outpatient visit, typically 15 minutes	105	76	$93.10	$74.76
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's	68	51	$95.00	$18.79
67820 Removal of eyelashes using forceps	26	15	$302.65	$30.99
92083 Exam of visual field with extended testing	25	23	$226.16	$31.31
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	24	24	$197.67	$150.43
92286 Imaging of front third of eye using a special microscope	23	21	$195.65	$24.92
G2212 Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or	22	15	$261.00	$35.27
92014 Established patient complete exam of visual system	14	14	$213.00	$88.00
65430 Scraping of cornea for diagnosis	14	14	$551.00	$121.19

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	554	248	$124.72	$112.00
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	284	141	$187.79	$164.21
68761 Closure of tear duct opening using plug	130	37	$601.54	$115.12
99213 Established patient office or other outpatient visit, typically 15 minutes	97	74	$99.41	$75.00
G2212 Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or	65	32	$261.00	$36.24
67820 Removal of eyelashes using forceps	38	22	$282.00	$29.55
76512 Ultrasound of eye disease, growth, or structure	37	19	$361.14	$36.82
65430 Scraping of cornea for diagnosis	33	25	$491.82	$121.05
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	33	33	$182.00	$153.30
92286 Imaging of front third of eye using a special microscope	21	19	$136.48	$25.59
92014 Established patient complete exam of visual system	21	21	$252.81	$94.25
92083 Exam of visual field with extended testing	20	18	$180.10	$32.17
99205 New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more	18	18	$254.00	$208.56
92285 Photography of content of eyes	17	16	$84.71	$3.43

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	494	226	$140.19	$109.41
99213 Established patient office or other outpatient visit, typically 15 minutes	165	115	$106.15	$71.02
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	120	73	$194.45	$158.12
68761 Closure of tear duct opening using plug	113	45	$595.18	$145.22
92014 Established patient complete exam of visual system	67	65	$240.58	$90.07
G2212 Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or	36	13	$261.00	$36.59
92286 Imaging of front third of eye using a special microscope	34	29	$97.76	$25.31
67820 Removal of eyelashes using forceps	27	11	$329.33	$32.64
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	25	25	$206.00	$149.47
92285 Photography of content of eyes	21	20	$64.43	$3.48
92083 Exam of visual field with extended testing	15	15	$143.40	$31.98
65430 Scraping of cornea for diagnosis	15	13	$422.00	$115.66

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	520	226	$117.77	$112.05
99213 Established patient office or other outpatient visit, typically 15 minutes	163	124	$81.28	$73.05
68761 Closure of tear duct opening using plug	135	37	$514.44	$122.11
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	102	78	$163.35	$156.40
92014 Established patient complete exam of visual system	60	60	$246.73	$90.36
92285 Photography of content of eyes	39	31	$61.00	$3.53
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	32	32	$182.00	$157.48
92286 Imaging of front third of eye using a special microscope	30	27	$92.00	$26.26
65430 Scraping of cornea for diagnosis	23	17	$415.30	$123.95
67820 Removal of eyelashes using forceps	20	11	$353.40	$33.59
92083 Exam of visual field with extended testing	15	14	$142.00	$32.57

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	318	181	$122.03	$91.52
99213 Established patient office or other outpatient visit, typically 15 minutes	235	146	$77.25	$59.27
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	194	140	$158.83	$129.79
68761 Closure of tear duct opening using plug	138	38	$417.25	$105.83
92286 Imaging of front third of eye using a special microscope	43	39	$83.63	$26.91
92285 Photography of content of eyes	39	30	$59.15	$3.61
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	33	33	$183.45	$151.09
92014 Established patient complete exam of visual system	29	29	$222.24	$92.11
65430 Scraping of cornea for diagnosis	23	17	$360.70	$122.77
76512 Ultrasound of eye disease, growth, or structure	22	14	$327.91	$38.29
92025 Ct scan of cornea	15	13	$60.40	$23.92
92083 Exam of visual field with extended testing	11	11	$142.00	$33.49

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	321	177	$97.22	$89.45
99213 Established patient office or other outpatient visit, typically 15 minutes	232	143	$63.61	$58.02
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	163	122	$130.00	$126.40
68761 Closure of tear duct opening using plug	127	39	$466.65	$107.61
92285 Photography of content of eyes	75	62	$73.25	$3.54
92286 Imaging of front third of eye using a special microscope	52	40	$77.00	$26.38
92014 Established patient complete exam of visual system	40	39	$204.30	$91.51
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	34	34	$152.00	$145.99
76512 Ultrasound of eye disease, growth, or structure	33	22	$350.00	$42.31
67820 Removal of eyelashes using forceps	30	11	$279.60	$48.75
65430 Scraping of cornea for diagnosis	28	19	$632.00	$113.63
92025 Ct scan of cornea	22	16	$74.18	$23.96
92083 Exam of visual field with extended testing	18	16	$165.11	$33.20
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	11	11	$92.00	$85.86

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	386	207	$99.11	$88.32
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	269	177	$133.23	$124.98
99213 Established patient office or other outpatient visit, typically 15 minutes	229	143	$63.64	$57.77
68761 Closure of tear duct opening using plug	169	47	$520.08	$107.66
92285 Photography of content of eyes	139	101	$84.00	$3.50
92286 Imaging of front third of eye using a special microscope	49	48	$77.00	$26.09
92134 Imaging of retina	42	40	$72.00	$30.87
65430 Scraping of cornea for diagnosis	40	24	$752.00	$120.96
76512 Ultrasound of eye disease, growth, or structure	37	25	$350.00	$52.85
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	33	33	$152.00	$145.01
92132 Imaging of front third of eye	28	23	$68.00	$19.36
92025 Ct scan of cornea	28	27	$84.00	$23.65
67820 Removal of eyelashes using forceps	25	14	$337.44	$65.29
92083 Exam of visual field with extended testing	20	17	$174.00	$32.75
92014 Established patient complete exam of visual system	18	18	$196.00	$92.94
92250 Photography of the retina	14	14	$209.00	$25.58

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	367	202	$149.77	$88.45
99213 Established patient office or other outpatient visit, typically 15 minutes	267	158	$82.87	$57.56
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	157	131	$203.19	$124.75
92285 Photography of content of eyes	124	101	$49.96	$3.50
92286 Imaging of front third of eye using a special microscope	81	75	$166.36	$26.03
68761 Closure of tear duct opening using plug	79	24	$778.15	$104.35
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	51	51	$306.59	$145.26
65430 Scraping of cornea for diagnosis	37	21	$772.32	$123.27
76512 Ultrasound of eye disease, growth, or structure	32	13	$345.31	$62.49
92025 Ct scan of cornea	31	31	$105.77	$23.65
92134 Imaging of retina	18	18	$134.78	$30.31
92014 Established patient complete exam of visual system	16	16	$196.00	$93.34
92083 Exam of visual field with extended testing	13	11	$178.15	$32.80

Medical Specialties & State Licenses

CMS Verified: 2024-04-04

Ophthalmology Primary Specialty

NUCC Taxonomy Code: 207W00000X

State License CA A54687

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

00A546870 (CA)

Hospital & Practice Group Affiliations

Stanford Health Care

300 Pasteur Dr, Stanford, CA 943052200

Phone: 6507234000

Stanford Health Care

2452 Watson Ct, Palo Alto, CA 943033216

Phone: 6507236995

Practice Associates & Co-Workers

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

40 Associated Practitioners

Dr. Andrew Picel , MD

Radiology - Vascular & Interventional Radiology

NPI 1003012444

Doctor of Medicine (M.D.)

Dr. Matthew Wright , MD PHD

Psychiatry & Neurology - Psychiatry

NPI 1003041559

MDPHD

Dr. Quazi Al-Tariq , MD

Radiology - Diagnostic Radiology

NPI 1003059395

Doctor of Medicine (M.D.)

Angie Murkins , NP

Nurse Practitioner

NPI 1003061508

Nurse Practitioner

Dr. Jamshid Ghajar , MD PHD

Neurological Surgery

NPI 1003094384

MDPHD

Dr. Yu Kuang Lai , MD

Internal Medicine - Critical Care Medicine

NPI 1003127846

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 July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 300 PASTEUR DR, STANFORD, CA 943052200 (Tel: 6504987103)

📍

Updated Business Mailing Address July 08, 2007

Registered at 2680 HANOVER ST, PALO ALTO, CA 943041117

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as CHRISTOPHER TA, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 08, 2007

Ophthalmology (License #A54687 in CA)

🟢

Initial NPI Registration & Enumeration February 27, 2007

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: 1609903020

Entity Type:

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

Enumeration Date: February 27, 2007

Last Update: April 04, 2024

Sole Proprietor: No

Update or Correct Profile

Mailing Address

2680 Hanover St

Palo Alto, CA 943041117

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.