Active NPI 1235378472 Individual Practitioner Female Practitioner

Dr. Viktoriya Sharp , MD

Internal Medicine • Walnut Creek, CA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Viktoriya Sharp, MD is a certified Internal Medicine practicing in Walnut Creek, CA. With approximately 26 years of clinical experience since completing medical education in 2000, Dr. Sharp delivers high-quality medical care to the local community at 1601 YGNACIO VALLEY RD.

Dr. Sharp is affiliated with John Muir Physician Network 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, follow-up hospital inpatient care per day, hospital discharge day management. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1601 Ygnacio Valley Rd

Walnut Creek, CA 94598

Telephone 9259473393

Associated Practice Facility / Clinic

🏢 Sierra Surgicenter Facility NPI 1053307454

Medicare Profile & Education

Medical School

Other

Graduation Year

2000

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Walnut Creek, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

26 Yrs +2.1 yrs vs City Avg

City Avg: 23.9 Yrs

State Avg: 26.6 Yrs

Regional Practice Density

191 Specialists

Practicing in Walnut Creek, CA (18502 Statewide)

Telehealth Adoption Rate

16.2% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

66.3% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Sharp (26 Years) 26 Yrs

Walnut Creek Specialty Average (23.9 Years) 23.9 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	603	252	$230.00	$87.86
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	324	136	$360.05	$132.16
99231 Follow-up hospital inpatient care per day, typically 15 minutes	135	80	$150.78	$54.62
99238 Hospital discharge day management, 30 minutes or less	96	93	$297.99	$92.23
99239 Hospital discharge day management, more than 30 minutes	94	94	$403.00	$130.25
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	50	50	$606.00	$193.17
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	38	38	$427.00	$142.48

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	479	217	$221.91	$89.63
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	288	141	$347.10	$134.81
99231 Follow-up hospital inpatient care per day, typically 15 minutes	134	78	$144.74	$55.36
99239 Hospital discharge day management, more than 30 minutes	89	87	$389.00	$131.56
99238 Hospital discharge day management, 30 minutes or less	87	86	$285.92	$93.07
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	43	43	$410.86	$146.78
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	40	40	$585.00	$196.54

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	202	98	$214.00	$80.23
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	198	83	$335.00	$115.03
99231 Follow-up hospital inpatient care per day, typically 15 minutes	56	36	$139.25	$42.83
99239 Hospital discharge day management, more than 30 minutes	49	49	$375.00	$120.46
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	34	34	$563.76	$222.85
99238 Hospital discharge day management, 30 minutes or less	33	33	$278.00	$82.45
99217 Hospital observation care on day of discharge	14	14	$202.64	$81.70

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	350	183	$205.48	$81.05
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	239	119	$323.09	$116.50
99231 Follow-up hospital inpatient care per day, typically 15 minutes	110	61	$134.88	$43.24
99239 Hospital discharge day management, more than 30 minutes	73	72	$404.00	$122.06
99238 Hospital discharge day management, 30 minutes or less	73	72	$268.00	$82.87
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	38	38	$544.42	$225.84
99225 Subsequent observation care, typically 25 minutes per day	33	26	$159.00	$81.12
99217 Hospital observation care on day of discharge	27	27	$195.41	$82.74
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	23	23	$384.00	$153.03
99226 Subsequent observation care, typically 35 minutes per day	21	16	$245.05	$116.41
99219 Hospital observation care, typically 50 minutes	11	11	$347.00	$151.18

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	313	177	$199.00	$82.99
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	225	108	$312.00	$119.67
99231 Follow-up hospital inpatient care per day, typically 15 minutes	214	88	$129.85	$44.63
99239 Hospital discharge day management, more than 30 minutes	88	87	$390.00	$124.78
99238 Hospital discharge day management, 30 minutes or less	70	69	$258.00	$84.91
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	41	41	$526.00	$231.49
99217 Hospital observation care on day of discharge	30	29	$189.00	$84.38
99225 Subsequent observation care, typically 25 minutes per day	22	20	$153.00	$83.32
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	22	22	$371.00	$156.71
99226 Subsequent observation care, typically 35 minutes per day	20	16	$222.00	$120.49
99219 Hospital observation care, typically 50 minutes	11	11	$335.00	$155.13

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	396	204	$191.94	$81.97
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	259	122	$301.00	$117.18
99231 Follow-up hospital inpatient care per day, typically 15 minutes	210	81	$124.99	$44.13
99238 Hospital discharge day management, 30 minutes or less	111	109	$249.00	$83.79
99239 Hospital discharge day management, more than 30 minutes	73	71	$390.00	$123.02
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	53	53	$508.00	$228.00
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	32	32	$358.00	$150.59
99217 Hospital observation care on day of discharge	31	31	$182.00	$83.79
99225 Subsequent observation care, typically 25 minutes per day	24	22	$147.00	$82.48
99219 Hospital observation care, typically 50 minutes	18	18	$323.00	$153.08
99220 Hospital observation care, typically 70 minutes	14	14	$401.00	$209.25

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	430	211	$184.95	$80.68
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	206	104	$290.35	$116.20
99231 Follow-up hospital inpatient care per day, typically 15 minutes	172	86	$120.12	$43.28
99238 Hospital discharge day management, 30 minutes or less	119	118	$239.45	$82.89
99239 Hospital discharge day management, more than 30 minutes	74	72	$376.00	$121.20
99217 Hospital observation care on day of discharge	47	47	$175.00	$82.96
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	46	46	$490.72	$225.63
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	41	41	$345.00	$151.80
99225 Subsequent observation care, typically 25 minutes per day	41	29	$142.00	$81.97
99219 Hospital observation care, typically 50 minutes	31	31	$314.42	$151.59
99220 Hospital observation care, typically 70 minutes	14	14	$387.00	$207.82

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	508	242	$178.02	$79.33
99233 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes	228	118	$280.81	$114.43
99231 Follow-up hospital inpatient care per day, typically 15 minutes	143	74	$122.00	$42.78
99238 Hospital discharge day management, 30 minutes or less	110	109	$251.30	$80.97
99239 Hospital discharge day management, more than 30 minutes	74	73	$366.00	$120.10
99223 Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes	74	73	$480.58	$221.99
99217 Hospital observation care on day of discharge	41	41	$181.95	$81.09
99225 Subsequent observation care, typically 25 minutes per day	38	31	$142.00	$80.30
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	23	23	$356.00	$149.64
99226 Subsequent observation care, typically 35 minutes per day	18	13	$224.89	$115.29
99219 Hospital observation care, typically 50 minutes	18	18	$321.33	$149.38
99220 Hospital observation care, typically 70 minutes	11	11	$396.00	$204.20

Medical Specialties & State Licenses

CMS Verified: 2026-05-08

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License CA A117410

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.

Hospital & Practice Group Affiliations

John Muir Physician Network

2700 Grant St, Concord, CA 945202270

Phone: 9256740500

Secondary Practice Locations

130 Tampico

Walnut Creek, CA 945982948

Phone: 6025400296

Practice Associates & Co-Workers

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

40 Associated Practitioners

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Doctor of Medicine (M.D.)

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Doctor of Medicine (M.D.)

Dr. Tiffany King , DO

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NPI 1023386174

Doctor of Osteopathic Medicine (D.O.)

Dr. Ruchita Savalia , DO

Hospitalist

NPI 1023455979

Doctor of Osteopathic Medicine (D.O.)

Dr. Viviane Alfandary , MD

Internal Medicine

NPI 1053338095

Doctor of Medicine (M.D.)

Dr. Gurinder Singh , DO

Internal Medicine

NPI 1063827301

Doctor of Osteopathic Medicine (D.O.)

Career & Practice History Timeline

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

9 Historical Events

📍

Updated Practice Location February 04, 2019

Registered at 1601 YGNACIO VALLEY RD, WALNUT CREEK, CA 94598 (Tel: 9259473393)

📍

Updated Business Mailing Address February 04, 2019

Registered at 1450 TREAT BLVD # 300, WALNUT CREEK, CA 945972168 (Tel: 9259522888)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 04, 2019

Internal Medicine (License #A117410 in CA)

✅

NPI Profile Active February 11, 2009

NPI status registered as active in NPPES database

📍

Updated Practice Location February 11, 2009

Registered at 2601 E ROOSEVELT ST, MARICOPA MED CTR RM O D 10, PHOENIX, AZ 850084973 (Tel: 6023441000)

📍

Updated Business Mailing Address February 11, 2009

Registered at 2025 E CAMPBELL AVE, APT 163, PHOENIX, AZ 850165553 (Tel: 6026331692)

👤

Provider Name / Credentials Updated February 11, 2009

Recorded as VIKTORIYA SHARP, M.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) February 11, 2009

Internal Medicine (License #R70222 in AZ)

🟢

Initial NPI Registration & Enumeration February 11, 2009

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: 1235378472

Entity Type:

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

Enumeration Date: February 11, 2009

Last Update: May 08, 2026

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

1450 Treat Blvd # 300

Walnut Creek, CA 945972168

Phone: 9259522888

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.