Active NPI 1255369765 Individual Practitioner Male Practitioner

Mark D. Williams , PA-C

Physician Assistant • Salem, OR

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Mark Williams, PA-C is a certified Physician Assistant practicing in Salem, OR. With approximately 28 years of clinical experience since completing medical education in 1998, Mark Williams delivers high-quality medical care to the local community at 1793 13TH ST SE.

Mark Williams is affiliated with Silver Falls Dermatology Llc and accepts Medicare assignment.

Frequently performed procedures and clinical services include destruction of precancer skin growth, 2-14 growths, established patient outpatient office visit, destruction of skin growth. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1793 13th St Se

Salem, OR 973022541

Telephone 5033628385

Fax 5033628435

Associated Practice Facility / Clinic

🏢 Silver Falls Dermatology, Llc Facility NPI 1134375421

Medicare Profile & Education

Medical School

Other

Graduation Year

1998

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Salem, OR

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

28 Yrs +19.0 yrs vs City Avg

City Avg: 9.0 Yrs

State Avg: 10.5 Yrs

Regional Practice Density

128 Specialists

Practicing in Salem, OR (2106 Statewide)

Telehealth Adoption Rate

10.2% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

69.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Williams (28 Years) 28 Yrs

Salem Specialty Average (9.0 Years) 9.0 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
17003 Destruction of precancer skin growth, 2-14 growths	1,228	198	$16.57	$5.50
99213 Established patient office or other outpatient visit, typically 15 minutes	444	308	$230.00	$74.01
17000 Destruction of skin growth	343	255	$168.36	$43.81
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	299	208	$330.00	$104.29
11102 Tangential biopsy of single skin lesion	225	201	$266.06	$72.89
17110 Destruction of up to 14 skin growths	198	170	$290.49	$93.31
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	121	121	$285.00	$90.40
17004 Destruction of precancer skin growth, 15 or more growths	74	59	$423.08	$132.00
11103 Biopsy of related skin growth, each additional growth	66	50	$135.21	$39.12
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	54	54	$425.00	$135.08
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	33	32	$145.00	$46.52
99202 New patient office or other outpatient visit, typically 20 minutes	19	19	$185.00	$55.70
69100 Biopsy of ear	12	11	$253.85	$65.33
11104 Punch biopsy, first skin growth	11	11	$333.23	$102.64

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	1,864	257	$16.57	$5.59
99213 Established patient office or other outpatient visit, typically 15 minutes	412	330	$230.00	$74.53
17000 Destruction of skin growth	398	300	$168.36	$42.68
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	386	272	$330.00	$104.23
11102 Tangential biopsy of single skin lesion	231	202	$266.06	$76.96
17110 Destruction of up to 14 skin growths	183	154	$290.49	$92.50
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	120	120	$285.00	$91.68
17004 Destruction of precancer skin growth, 15 or more growths	108	80	$423.08	$137.38
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	82	82	$425.00	$133.99
11103 Biopsy of related skin growth, each additional growth	75	49	$135.21	$41.49
11401 Removal of noncancer skin growth of body, arms, or legs, 0.6-1.0 cm	19	16	$402.14	$123.51
69100 Biopsy of ear	15	15	$253.85	$77.90
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	15	15	$145.00	$46.88
17111 Destruction of skin growth, 15 or more growths	15	14	$340.21	$110.84
99202 New patient office or other outpatient visit, typically 20 minutes	13	13	$185.00	$59.95

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	1,488	229	$16.57	$5.56
99213 Established patient office or other outpatient visit, typically 15 minutes	415	326	$230.00	$74.22
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	398	266	$330.00	$104.15
17000 Destruction of skin growth	379	290	$168.36	$41.74
11102 Tangential biopsy of single skin lesion	223	201	$266.06	$75.58
17110 Destruction of up to 14 skin growths	206	177	$290.49	$92.58
17004 Destruction of precancer skin growth, 15 or more growths	182	121	$423.08	$138.96
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	103	103	$285.00	$91.33
11103 Biopsy of related skin growth, each additional growth	83	62	$135.21	$42.42
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	46	46	$425.00	$136.86
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	20	19	$145.00	$46.51
69100 Biopsy of ear	18	18	$253.85	$60.14
17111 Destruction of skin growth, 15 or more growths	17	13	$340.21	$109.85
11104 Punch biopsy, first skin growth	14	14	$333.23	$101.60
11400 Removal of growth (0.5 centimeters or less) of the trunk, arms or legs	14	11	$330.61	$94.74

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	1,393	206	$17.21	$5.40
99213 Established patient office or other outpatient visit, typically 15 minutes	584	393	$223.17	$75.05
17000 Destruction of skin growth	341	261	$169.59	$42.21
11102 Tangential biopsy of single skin lesion	207	176	$262.80	$78.36
17004 Destruction of precancer skin growth, 15 or more growths	156	106	$418.68	$135.94
17110 Destruction of up to 14 skin growths	145	126	$288.48	$91.78
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	110	110	$281.28	$91.50
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	90	73	$325.33	$106.30
11103 Biopsy of related skin growth, each additional growth	82	48	$134.83	$43.71
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	40	39	$139.75	$46.32
17111 Destruction of skin growth, 15 or more growths	18	16	$338.51	$110.09
99202 New patient office or other outpatient visit, typically 20 minutes	17	17	$185.88	$58.51
11104 Punch biopsy, first skin growth	12	11	$325.49	$107.65

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	864	132	$20.00	$4.88
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	279	188	$270.00	$88.81
17000 Destruction of skin growth	235	176	$180.00	$40.51
99213 Established patient office or other outpatient visit, typically 15 minutes	234	174	$185.00	$61.97
11102 Tangential biopsy of single skin lesion	139	121	$250.00	$75.70
17110 Destruction of up to 14 skin growths	98	82	$280.00	$90.08
17004 Destruction of precancer skin growth, 15 or more growths	85	56	$390.00	$127.77
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	83	83	$270.00	$88.83
11103 Biopsy of related skin growth, each additional growth	48	33	$135.00	$43.90
99202 New patient office or other outpatient visit, typically 20 minutes	45	45	$190.00	$63.37
11104 Punch biopsy, first skin growth	12	12	$310.00	$105.36

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	1,287	182	$20.00	$4.61
99213 Established patient office or other outpatient visit, typically 15 minutes	406	264	$185.00	$61.07
17000 Destruction of skin growth	318	230	$180.00	$42.09
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	287	184	$269.55	$88.79
11102 Tangential biopsy of single skin lesion	203	174	$249.61	$74.91
17110 Destruction of up to 14 skin growths	122	103	$279.67	$90.45
17004 Destruction of precancer skin growth, 15 or more growths	100	79	$390.00	$123.61
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	97	97	$269.79	$88.18
99202 New patient office or other outpatient visit, typically 20 minutes	87	87	$189.77	$63.30
11103 Biopsy of related skin growth, each additional growth	68	46	$134.93	$40.61
11400 Removal of growth (0.5 centimeters or less) of the trunk, arms or legs	13	11	$315.00	$92.10
11104 Punch biopsy, first skin growth	13	13	$309.23	$103.85

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	1,262	175	$20.00	$4.22
99213 Established patient office or other outpatient visit, typically 15 minutes	385	247	$185.00	$59.28
17000 Destruction of skin growth	337	218	$180.00	$42.12
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	289	170	$260.00	$89.28
11100 Biopsy of single growth of skin and/or tissue	197	162	$250.00	$79.69
17110 Destruction of up to 14 skin growths	122	96	$270.00	$90.97
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	85	85	$260.00	$88.89
99202 New patient office or other outpatient visit, typically 20 minutes	64	64	$180.00	$61.82
17004 Destruction of precancer skin growth, 15 or more growths	63	52	$390.00	$120.12
11101 Biopsy of each additional growth of skin and/or tissue	56	48	$75.00	$27.15

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	1,171	175	$20.00	$4.48
99213 Established patient office or other outpatient visit, typically 15 minutes	344	233	$179.36	$58.88
17000 Destruction of skin growth	344	227	$180.00	$42.89
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	320	185	$259.73	$87.89
11100 Biopsy of single growth of skin and/or tissue	228	187	$237.54	$77.94
17110 Destruction of up to 14 skin growths	115	93	$254.61	$89.43
11101 Biopsy of each additional growth of skin and/or tissue	98	59	$75.00	$25.45
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	74	74	$260.00	$87.97
99202 New patient office or other outpatient visit, typically 20 minutes	69	69	$180.00	$61.46
17004 Destruction of precancer skin growth, 15 or more growths	60	48	$390.00	$123.86

Medical Specialties & State Licenses

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License OR PA00623

A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician.

Hospital & Practice Group Affiliations

Silver Falls Dermatology Llc

1390 Waverly Dr Se, Albany, OR 973226945

Phone: 5033628385

Silver Falls Dermatology Llc

2358 Nw Kings Blvd, Corvallis, OR 973303925

Phone: 5033628385

Practice Associates & Co-Workers

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

40 Associated Practitioners

Dr. Lauren Boudreaux , DO

Dermatology

NPI 1003235706

Doctor of Osteopathic Medicine (D.O.)

Deborah Jones , FNP-C

Nurse Practitioner - Family

NPI 1063763472

Family Nurse Practitioner (Certified)

Megan Smith , PA-C

Physician Assistant - Medical

NPI 1093263386

Physician Assistant (Certified)

Dr. Rick Pittman , MD

Surgery - Vascular Surgery

NPI 1104990175

Doctor of Medicine (M.D.)

Kathleen Stewart , PA-C

Physician Assistant - Medical

NPI 1114110947

Physician Assistant (Certified)

Dr. Russell Young , MD

Dermatology

NPI 1144285529

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 13, 2015

NPI status registered as active in NPPES database

📍

Updated Practice Location July 13, 2015

Registered at 1793 13TH ST SE, SALEM, OR 973022541 (Tel: 5033628385)

📍

Updated Business Mailing Address July 13, 2015

Registered at 1793 13TH ST SE, SALEM, OR 973022541 (Tel: 5033628385)

👤

Provider Name / Credentials Updated July 13, 2015

Recorded as MARK WILLIAMS, PA-C

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 13, 2015

Physician Assistant (License #PA00623 in OR)

🟢

Initial NPI Registration & Enumeration June 30, 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: 1255369765

Entity Type:

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

Enumeration Date: June 30, 2006

Last Update: July 13, 2015

Sole Proprietor: No

Update or Correct Profile

Mailing Address

1793 13th St Se

Salem, OR 973022541

Phone: 5033628385

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.