Active NPI 1770655508 Individual Practitioner Female Practitioner

Dr. Denise A. Yun , MD

Internal Medicine • Berkeley, CA

Telehealth Available

Professional Overview & Biography Verified Profile Summary

Dr. Denise Yun, MD is a certified Internal Medicine practicing in Berkeley, CA. With approximately 27 years of clinical experience since graduating from New York Medical College in 1999, Dr. Yun delivers high-quality medical care to the local community at 1801 SHATTUCK AVE STE A.

Dr. Yun maintains professional affiliations with Marin Community Clinic, Regents Univ Of California Ucsf, One Medical Group Inc and does not directly accept Medicare assignment . Telehealth and virtual consultation options are available for eligible patients.

Frequently performed procedures and clinical services include travel allowance one way in connection with medically necessary laboratory specimen collection drawn from home bound or nursing home bound patient; prorated miles actually travelled, established patient outpatient office visit, insertion of needle into vein for collection of blood sample. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1801 Shattuck Ave Ste A

Berkeley, CA 947091872

Telephone 8886636331

Associated Practice Facility / Clinic

🏢 Ohio State University - Cap Facility NPI 1689632515

Medicare Profile & Education

Medical School

New York Medical College

Graduation Year

1999

Medicare Assignment

Not Specified

Telehealth Flag

Telehealth Services Available

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Berkeley, CA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

27 Yrs +3.3 yrs vs City Avg

City Avg: 23.7 Yrs

State Avg: 26.6 Yrs

Regional Practice Density

92 Specialists

Practicing in Berkeley, CA (18502 Statewide)

Telehealth Adoption Rate

19.6% Regional Adoption

✓ Offers Virtual Consultations

Medicare Pricing Discount

67.2% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Yun (27 Years) 27 Yrs

Berkeley Specialty Average (23.7 Years) 23.7 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
P9603 Travel allowance one way in connection with medically necessary laboratory specimen collection drawn from home bound or nursing home bound patient; prorated miles actually travelled	1,034	29	$1.13	$1.11
99213 Established patient office or other outpatient visit, typically 15 minutes	156	125	$393.00	$104.25
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	83	74	$577.00	$146.19
36415 Insertion of needle into vein for collection of blood sample	52	45	$15.00	$8.65
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	37	37	$620.41	$148.78
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	27	23	$773.00	$203.98
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	23	23	$120.00	$69.57
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes	21	20	$235.00	$141.36
99439 Chronic care management services for two or more chronic conditions, additional 20 minutes of clinical staff time directed by health care professional, per calendar month	19	13	$95.00	$53.53
99348 Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes	15	14	$140.00	$86.91
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	14	14	$241.00	$66.09
G0008 Administration of influenza virus vaccine	14	14	$136.00	$38.72
90662 Influenza vaccine split virus, preservative free	13	13	$163.00	$81.82

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99349 Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes	124	88	$199.72	$138.93
36415 Insertion of needle into vein for collection of blood sample	77	58	$10.00	$8.40
99348 Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes	50	42	$128.01	$84.25
99347 Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes	49	36	$63.06	$50.43
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month	40	23	$100.00	$72.93
99350 Residence visit for established patient with high level of medical decision making, per day, if using time, at least 60 minutes	16	16	$271.61	$195.29
81002 Urinalysis, manual test	15	14	$10.00	$3.41
99344 New patient home visit, typically 1 hour	14	14	$216.00	$160.61
99497 Advance care planning, first 30 minutes	12	12	$108.00	$96.86

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99336 Established patient assisted living visit, typically 40 minutes	189	146	$207.26	$147.55
99335 Established patient assisted living visit, typically 25 minutes	79	63	$147.83	$108.24
99337 Established patient assisted living visit, typically 60 minutes	59	51	$303.39	$204.70
99497 Advance care planning, first 30 minutes	51	50	$128.32	$96.68
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	42	42	$211.52	$151.78
99328 New patient custodial care facility, group care, or assisted living visit, typically 75 minutes	14	14	$271.50	$245.22

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99335 Established patient assisted living visit, typically 25 minutes	76	53	$213.38	$109.91
99336 Established patient assisted living visit, typically 40 minutes	76	51	$219.51	$155.17
99487 Complex chronic care management services for two or more chronic conditions, first 60 minutes of clinical staff time directed by health care professional, per calendar month	57	38	$224.73	$112.87
99334 Established patient custodial care facility, group care, or assisted living visit, typically 15 minutes	46	39	$163.49	$69.65
99497 Advance care planning, first 30 minutes	32	32	$134.04	$98.73
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	29	29	$248.57	$158.58
99337 Established patient assisted living visit, typically 60 minutes	14	13	$344.01	$221.81

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	265	176	$76.49	$56.53
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	261	163	$102.03	$87.43
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	108	108	$700.00	$138.31
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	52	50	$130.00	$124.05
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	20	16	$235.00	$64.19
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	12	12	$32.00	$28.26
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	11	11	$152.00	$144.07

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99213 Established patient office or other outpatient visit, typically 15 minutes	345	200	$140.82	$65.97
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	341	207	$198.93	$96.99
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit	132	132	$620.73	$134.29
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	47	41	$71.89	$35.39
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more	34	34	$239.53	$126.97
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	30	30	$330.63	$149.47
G0009 Administration of pneumococcal vaccine	29	29	$71.00	$31.10
90670 Pneumococcal vaccine for injection into muscle	25	25	$500.00	$180.16
G0180 Physician or allowed practitioner certification for medicare-covered home health services under a home health plan of care (patient not present), including contacts with home health agency and review of reports of patient status required by physicians and	22	17	$200.00	$63.07
93000 Routine ekg using at least 12 leads including interpretation and report	14	13	$98.00	$19.68
69210 Removal of impacted ear wax	12	12	$84.00	$35.97

Medical Specialties & State Licenses

CMS Verified: 2025-12-23

Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License CA A73522

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

One Medical Group Inc

1801 Shattuck Ave A, Berkeley, CA 947091872

Phone: 8886636331

Marin Community Clinic

6090 Redwood Blvd, Novato, CA 949454569

Phone: 4154481500

Regents Univ Of California Ucsf

505 Parnassus Ave, San Francisco, CA 941432204

Phone: 4154761000

Secondary Practice Locations

1144 65th St Ste F

Oakland, CA 946081053

Phone: 5109291400

Practice Associates & Co-Workers

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

40 Associated Practitioners

Reshma Patel , PA

Physician Assistant

NPI 1003239765

Physician Assistant

Sarah Haney

Family Medicine

NPI 1003285420

Moensania Phillips , NURSE PRACTITIONER

Nurse Practitioner - Family

NPI 1003300757

NURSEPRACTITIONER

Madelyn Garcia

Family Medicine

NPI 1003558735

Lisa Hacker , ARNP

Nurse Practitioner - Family

NPI 1003834771

Advanced Registered Nurse Practitioner

Karen Dress , PA-C

Physician Assistant

NPI 1013123157

Physician Assistant (Certified)

Career & Practice History Timeline

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

13 Historical Events

📍

Updated Practice Location December 23, 2025

Registered at 1801 SHATTUCK AVE STE A, BERKELEY, CA 947091872 (Tel: 8886636331)

📍

Updated Business Mailing Address December 23, 2025

Registered at 1 EMBARCADERO CTR STE 1900, SAN FRANCISCO, CA 941113723 (Tel: 8886636331)

📍

Updated Business Mailing Address January 29, 2024

Registered at PO BOX 511250, LOS ANGELES, CA 900517805 (Tel: 5109291400)

📍

Updated Practice Location October 19, 2022

Registered at 1144 65TH ST STE F, OAKLAND, CA 946081053 (Tel: 5109291400)

📍

Updated Business Mailing Address October 19, 2022

Registered at 1144 65TH ST STE F, OAKLAND, CA 946081053 (Tel: 5109291400)

📍

Updated Practice Location January 25, 2019

Registered at 201 SPEAR ST STE 230, SAN FRANCISCO, CA 941051632 (Tel: 4155039277)

📍

Updated Business Mailing Address January 25, 2019

Registered at 130 SUTTER ST FL 2, SAN FRANCISCO, CA 941044009

✅

NPI Profile Active July 08, 2007

NPI status registered as active in NPPES database

📍

Updated Practice Location July 08, 2007

Registered at 975 SERENO DR, VALLEJO, CA 945892441 (Tel: 7076511000)

📍

Updated Business Mailing Address July 08, 2007

Registered at 1800 HARRISON ST FL 7, OAKLAND, CA 946123429 (Tel: 5106256262)

👤

Provider Name / Credentials Updated July 08, 2007

Recorded as DENISE YUN, MD

🎓

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

Internal Medicine (License #A73522 in CA)

🟢

Initial NPI Registration & Enumeration November 15, 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: 1770655508

Entity Type:

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

Enumeration Date: November 15, 2006

Last Update: December 23, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1 Embarcadero Ctr Ste 1900

San Francisco, CA 941113723

Phone: 8886636331

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.