Active NPI 1801048921 Individual Practitioner Female Practitioner

Katie Brouillard O'brien , NP

Dermatology • Worcester, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Katie O'Brien, NP is a certified Dermatology practicing in Worcester, MA. With approximately 18 years of clinical experience since completing medical education in 2008, Katie O'Brien delivers high-quality medical care to the local community at 255 PARK AVE STE 509.

Katie O'Brien is affiliated with Integrated Dermatology Of Worcester Ii 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

255 Park Ave Ste 509

Worcester, MA 016091989

Telephone 5088905500

Fax 5088905505

Associated Practice Facility / Clinic

🏢 The Dermatology Center Of Worcester Llc Facility NPI 1538484837

Medicare Profile & Education

Medical School

Other

Graduation Year

2008

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Dermatology in Worcester, MA

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

18 Yrs -2.8 yrs vs City Avg

City Avg: 20.8 Yrs

State Avg: 27.5 Yrs

Regional Practice Density

35 Specialists

Practicing in Worcester, MA (648 Statewide)

Telehealth Adoption Rate

5.7% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

68.9% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. O'brien (18 Years) 18 Yrs

Worcester Specialty Average (20.8 Years) 20.8 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	419	92	$45.00	$6.59
99213 Established patient office or other outpatient visit, typically 15 minutes	277	244	$310.00	$85.80
17000 Destruction of skin growth	136	119	$230.00	$52.43
11102 Tangential biopsy of single skin lesion	74	74	$300.00	$93.01
17110 Destruction of up to 14 skin growths	61	53	$320.00	$109.64
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	38	34	$300.00	$118.64
11103 Biopsy of related skin growth, each additional growth	24	15	$165.00	$49.33
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	22	22	$300.00	$104.41
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	21	20	$190.00	$52.17

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	776	138	$45.00	$6.59
99213 Established patient office or other outpatient visit, typically 15 minutes	397	333	$310.00	$84.42
17000 Destruction of skin growth	222	194	$230.00	$53.97
11102 Tangential biopsy of single skin lesion	126	118	$300.00	$93.41
17110 Destruction of up to 14 skin growths	95	86	$320.00	$111.31
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	81	81	$300.00	$104.93
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	52	42	$300.00	$117.67
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	40	38	$190.00	$53.01
11103 Biopsy of related skin growth, each additional growth	40	30	$165.00	$49.38
99202 New patient office or other outpatient visit, typically 20 minutes	26	26	$225.00	$68.42
J7308 Aminolevulinic acid hcl for topical administration, 20%, single unit dosage form (354 mg)	19	12	$550.00	$384.78
17004 Destruction of precancer skin growth, 15 or more growths	17	13	$420.00	$165.34
17261 Destruction of cancer skin growth of trunk, arms, or legs, 0.6-1.0 cm	15	11	$370.00	$130.22
11104 Punch biopsy, first skin growth	12	11	$375.00	$124.16

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	614	109	$45.00	$6.79
99213 Established patient office or other outpatient visit, typically 15 minutes	420	338	$310.00	$86.27
17000 Destruction of skin growth	191	162	$230.00	$53.02
11102 Tangential biopsy of single skin lesion	111	101	$300.00	$96.66
17110 Destruction of up to 14 skin growths	90	87	$320.00	$114.15
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	79	79	$300.00	$105.01
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	50	49	$190.00	$54.30
11103 Biopsy of related skin growth, each additional growth	32	22	$165.00	$51.06
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	30	24	$300.00	$121.12
17004 Destruction of precancer skin growth, 15 or more growths	20	15	$420.00	$167.56
99202 New patient office or other outpatient visit, typically 20 minutes	18	18	$225.00	$69.93
11104 Punch biopsy, first skin growth	12	11	$375.00	$128.02

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	609	130	$45.00	$6.60
99213 Established patient office or other outpatient visit, typically 15 minutes	406	334	$302.96	$87.51
17000 Destruction of skin growth	202	173	$230.00	$53.42
11102 Tangential biopsy of single skin lesion	122	105	$300.00	$96.65
17110 Destruction of up to 14 skin growths	90	84	$320.00	$113.58
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	86	78	$188.60	$53.97
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	77	77	$300.00	$105.60
11103 Biopsy of related skin growth, each additional growth	37	18	$162.97	$53.34
11104 Punch biopsy, first skin growth	18	18	$375.00	$125.81
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	17	16	$300.00	$124.22
17004 Destruction of precancer skin growth, 15 or more growths	16	11	$420.00	$165.92
99202 New patient office or other outpatient visit, typically 20 minutes	15	15	$225.00	$70.66

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	604	123	$45.00	$6.05
99213 Established patient office or other outpatient visit, typically 15 minutes	321	281	$200.00	$72.11
17000 Destruction of skin growth	167	152	$230.00	$56.44
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	139	127	$295.68	$104.57
11102 Tangential biopsy of single skin lesion	100	95	$300.00	$96.58
17110 Destruction of up to 14 skin growths	47	43	$320.00	$112.44
99202 New patient office or other outpatient visit, typically 20 minutes	33	33	$225.00	$73.47
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	32	31	$150.00	$44.05
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	26	26	$300.00	$103.29
11103 Biopsy of related skin growth, each additional growth	24	17	$90.00	$53.12
11104 Punch biopsy, first skin growth	12	12	$375.00	$126.27

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	481	113	$45.00	$5.56
99213 Established patient office or other outpatient visit, typically 15 minutes	403	347	$200.25	$70.67
17000 Destruction of skin growth	165	145	$230.00	$57.14
11102 Tangential biopsy of single skin lesion	92	88	$300.00	$96.12
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	67	54	$250.00	$103.30
17110 Destruction of up to 14 skin growths	51	50	$320.00	$106.56
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	39	39	$150.00	$43.52
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	34	34	$300.00	$103.15
99202 New patient office or other outpatient visit, typically 20 minutes	23	23	$225.00	$73.10
11103 Biopsy of related skin growth, each additional growth	19	17	$90.00	$52.58
17004 Destruction of precancer skin growth, 15 or more growths	18	12	$420.00	$148.63

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	780	154	$45.00	$5.12
99213 Established patient office or other outpatient visit, typically 15 minutes	528	408	$195.60	$68.69
17000 Destruction of skin growth	264	208	$230.00	$55.51
11100 Biopsy of single growth of skin and/or tissue	219	188	$320.00	$101.50
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	146	129	$143.42	$41.33
99202 New patient office or other outpatient visit, typically 20 minutes	86	86	$216.10	$70.51
17110 Destruction of up to 14 skin growths	70	67	$320.00	$109.79
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	68	68	$297.94	$100.65
11101 Biopsy of each additional growth of skin and/or tissue	60	39	$95.00	$31.00
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	37	27	$250.00	$99.21

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	730	167	$45.00	$5.33
99213 Established patient office or other outpatient visit, typically 15 minutes	504	423	$175.00	$66.76
17000 Destruction of skin growth	263	218	$230.00	$55.23
11100 Biopsy of single growth of skin and/or tissue	199	183	$318.97	$95.07
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	119	105	$110.00	$40.88
99202 New patient office or other outpatient visit, typically 20 minutes	98	98	$180.00	$69.62
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	65	65	$280.00	$99.78
17110 Destruction of up to 14 skin growths	59	52	$320.00	$105.12
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	38	27	$250.00	$99.34
11101 Biopsy of each additional growth of skin and/or tissue	38	28	$95.00	$30.32
17004 Destruction of precancer skin growth, 15 or more growths	12	11	$420.00	$142.22

Medical Specialties & State Licenses

CMS Verified: 2026-01-26

Dermatology Primary Specialty

NUCC Taxonomy Code: 207N00000X

State License MA 284603

A dermatologist is trained to diagnose and treat pediatric and adult patients with benign and malignant disorders of the skin, mouth, external genitalia, hair and nails, as well as a number of sexually transmitted diseases. The dermatologist has had additional training and experience in the diagnosis and treatment of skin cancers, melanomas, moles and other tumors of the skin, the management of contact dermatitis and other allergic and nonallergic skin disorders, and in the recognition of the skin manifestations of systemic (including internal malignancy) and infectious diseases. Dermatologists have special training in dermatopathology and in the surgical techniques used in dermatology. They also have expertise in the management of cosmetic disorders of the skin such as hair loss and scars and the skin changes associated with aging.

Nurse Practitioner

NUCC Taxonomy Code: 363L00000X

State License MA 284603

(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

Hospital & Practice Group Affiliations

Integrated Dermatology Of Worcester Ii Llc

255 Park Ave, Worcester, MA 016091989

Phone: 5088905500

Practice Associates & Co-Workers

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

2 Associated Practitioners

Dr. Arjun Bashyam , MD

Dermatology

NPI 1699354100

Doctor of Medicine (M.D.)

Andreann Huang , NP

Nurse Practitioner

NPI 1922818129

Nurse Practitioner

Career & Practice History Timeline

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

8 Historical Events

📍

Updated Practice Location January 26, 2026

Registered at 255 PARK AVE STE 509, WORCESTER, MA 016091989 (Tel: 5088905500)

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) January 26, 2026

Nurse Practitioner (License #284603 in MA)

✅

NPI Profile Active October 31, 2012

NPI status registered as active in NPPES database

📍

Updated Practice Location October 31, 2012

Registered at 36 ADAMS STREET, QUINCY, MA 02169 (Tel: 6177739805)

📍

Updated Business Mailing Address October 31, 2012

Registered at 36 ADAMS STREET, QUINCY, MA 02169 (Tel: 6177730711)

👤

Provider Name / Credentials Updated October 31, 2012

Recorded as KATIE O'BRIEN, NP

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) October 31, 2012

Dermatology (License #284603 in MA)

🟢

Initial NPI Registration & Enumeration October 21, 2008

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: 1801048921

Entity Type:

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

Enumeration Date: October 21, 2008

Last Update: January 26, 2026

Sole Proprietor: No

Update or Correct Profile

Mailing Address

36 Adams Street

Quincy, MA 02169

Phone: 6177730711

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.