Active NPI 1235107970 Individual Practitioner Male Practitioner

Blair J Maerowitz , PA-C

Physician Assistant • Amherst, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Blair Maerowitz, PA-C is a certified Physician Assistant practicing in Amherst, MA. With approximately 24 years of clinical experience since graduating from Duke University School Of Medicine in 2002, Blair Maerowitz delivers high-quality medical care to the local community at 29 COTTAGE STREET.

Blair Maerowitz is affiliated with Pioneer Valley Dermatology Pc and accepts Medicare assignment.

Frequently performed procedures and clinical services include established patient outpatient office visit, destruction of precancer skin growth, 2-14 growths, 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

29 Cottage Street
B (Pioneer Valley Dermatology)

Amherst, MA 010021206

Telephone 4134063250

Fax 4135497402

Associated Practice Facility / Clinic

🏢 Pioneer Valley Dermatology Pc Facility NPI 1114020211

Medicare Profile & Education

Medical School

Duke University School Of Medicine

Graduation Year

2002

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Physician Assistant in Amherst, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

24 Yrs +14.5 yrs vs City Avg

City Avg: 9.5 Yrs

State Avg: 10.0 Yrs

Regional Practice Density

12 Specialists

Practicing in Amherst, MA (4746 Statewide)

Telehealth Adoption Rate

8.3% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

55.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Maerowitz (24 Years) 24 Yrs

Amherst Specialty Average (9.5 Years) 9.5 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
99213 Established patient office or other outpatient visit, typically 15 minutes	1,200	1,006	$165.58	$78.84
17003 Destruction of precancer skin growth, 2-14 growths	1,194	292	$12.33	$5.89
17000 Destruction of skin growth	549	462	$124.19	$50.56
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	354	50	$2.19	$0.97
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	242	223	$110.12	$49.28
11102 Tangential biopsy of single skin lesion	236	214	$184.65	$83.65
17110 Destruction of up to 14 skin growths	190	173	$207.37	$98.32
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	115	115	$203.73	$96.62
17261 Destruction of cancer skin growth of trunk, arms, or legs, 0.6-1.0 cm	62	50	$276.36	$112.87
11900 Injection into skin growth, 1-7 growths	56	28	$104.70	$41.56
11103 Biopsy of related skin growth, each additional growth	39	33	$89.46	$44.15
99202 New patient office or other outpatient visit, typically 20 minutes	34	34	$133.43	$62.86
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	28	27	$233.66	$111.19
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	19	15	$31.57	$12.51
17271 Destruction of cancer skin growth of scalp, neck, hands, feet, or genitals, 0.6-1.0 cm	19	13	$303.12	$130.90
17004 Destruction of precancer skin growth, 15 or more growths	18	14	$303.00	$138.55
17262 Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm	17	17	$322.14	$156.48
17260 Destruction of cancer skin growth of trunk, arms, or legs, 0.5 cm or less	17	13	$180.94	$56.75
17281 Destruction of malignant growth (0.6 to 1.0 centimeters) of face, ears, eyelids, nose, lips, or mouth	16	13	$325.46	$148.12
69100 Biopsy of ear	13	12	$177.98	$70.59
Q0112 All potassium hydroxide (koh) preparations	12	12	$15.00	$5.71

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	1,130	271	$12.78	$6.01
99213 Established patient office or other outpatient visit, typically 15 minutes	1,071	895	$168.26	$79.64
17000 Destruction of skin growth	516	417	$126.94	$50.02
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	363	51	$2.05	$1.08
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	270	237	$111.80	$50.18
11102 Tangential biopsy of single skin lesion	262	238	$194.28	$86.64
17110 Destruction of up to 14 skin growths	207	194	$214.84	$100.54
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	142	142	$210.29	$98.35
17261 Destruction of cancer skin growth of trunk, arms, or legs, 0.6-1.0 cm	51	42	$281.86	$123.12
11103 Biopsy of related skin growth, each additional growth	44	37	$96.18	$45.48
99202 New patient office or other outpatient visit, typically 20 minutes	30	30	$135.76	$64.15
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	28	28	$235.17	$112.77
17281 Destruction of malignant growth (0.6 to 1.0 centimeters) of face, ears, eyelids, nose, lips, or mouth	27	25	$338.95	$155.87
11900 Injection into skin growth, 1-7 growths	26	22	$108.54	$44.40
17262 Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm	26	23	$333.07	$145.40
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	22	20	$26.59	$12.58
Q0112 All potassium hydroxide (koh) preparations	20	20	$15.00	$5.71
96900 Application of ultraviolet light to skin	20	15	$49.34	$22.25
17271 Destruction of cancer skin growth of scalp, neck, hands, feet, or genitals, 0.6-1.0 cm	17	16	$317.41	$136.79
69100 Biopsy of ear	14	14	$183.32	$68.42
17280 Destruction of malignant growth (0.5 centimeters or less) of face, ears, eyelids, nose, lips, or mouth	12	12	$266.05	$120.98
11104 Punch biopsy, first skin growth	11	11	$235.09	$113.99

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	1,223	275	$12.88	$6.12
99213 Established patient office or other outpatient visit, typically 15 minutes	1,014	842	$169.31	$80.11
17000 Destruction of skin growth	548	446	$127.01	$50.08
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	516	69	$2.17	$1.15
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	251	218	$112.29	$50.04
11102 Tangential biopsy of single skin lesion	247	219	$195.16	$86.74
17110 Destruction of up to 14 skin growths	204	192	$217.70	$101.40
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	126	126	$208.66	$98.94
17261 Destruction of cancer skin growth of trunk, arms, or legs, 0.6-1.0 cm	54	40	$279.45	$112.51
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	49	41	$242.01	$113.48
99202 New patient office or other outpatient visit, typically 20 minutes	40	40	$136.37	$64.80
11103 Biopsy of related skin growth, each additional growth	35	33	$94.37	$46.32
11900 Injection into skin growth, 1-7 growths	29	23	$107.13	$43.17
Q0112 All potassium hydroxide (koh) preparations	29	25	$15.00	$5.76
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	27	25	$34.12	$12.73
17262 Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm	25	19	$344.41	$148.43
96900 Application of ultraviolet light to skin	22	15	$49.38	$22.04
11901 Injection into skin growth, more than 7 growths	19	11	$129.23	$61.35
17004 Destruction of precancer skin growth, 15 or more growths	18	15	$325.84	$152.25
17281 Destruction of malignant growth (0.6 to 1.0 centimeters) of face, ears, eyelids, nose, lips, or mouth	17	16	$340.29	$151.70
17271 Destruction of cancer skin growth of scalp, neck, hands, feet, or genitals, 0.6-1.0 cm	15	15	$319.25	$144.90
10060 Simple or single drainage of skin abscess	12	12	$228.49	$112.49

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	1,241	266	$12.57	$6.17
99213 Established patient office or other outpatient visit, typically 15 minutes	951	782	$172.14	$84.23
17000 Destruction of skin growth	516	427	$126.32	$51.26
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	339	46	$2.29	$1.27
11102 Tangential biopsy of single skin lesion	238	220	$200.50	$89.53
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	215	194	$112.15	$51.85
17110 Destruction of up to 14 skin growths	202	184	$218.62	$104.94
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	121	121	$209.69	$103.39
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	71	63	$239.99	$119.40
17261 Destruction of cancer skin growth of trunk, arms, or legs, 0.6-1.0 cm	50	39	$283.86	$125.74
96900 Application of ultraviolet light to skin	44	15	$47.69	$23.96
99202 New patient office or other outpatient visit, typically 20 minutes	42	42	$138.14	$67.24
11103 Biopsy of related skin growth, each additional growth	32	30	$101.90	$49.08
Q0112 All potassium hydroxide (koh) preparations	29	28	$15.00	$5.83
17262 Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm	26	24	$339.27	$160.03
17004 Destruction of precancer skin growth, 15 or more growths	21	18	$314.85	$155.85
11900 Injection into skin growth, 1-7 growths	19	17	$106.55	$46.77
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	16	14	$26.80	$12.98
17271 Destruction of cancer skin growth of scalp, neck, hands, feet, or genitals, 0.6-1.0 cm	15	12	$319.09	$139.61
10060 Simple or single drainage of skin abscess	11	11	$237.01	$115.72

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	950	213	$11.65	$6.53
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	503	480	$206.71	$115.89
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	499	58	$2.66	$1.47
17000 Destruction of skin growth	388	337	$125.80	$58.60
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	221	197	$90.20	$47.17
99213 Established patient office or other outpatient visit, typically 15 minutes	212	175	$142.67	$78.65
11102 Tangential biopsy of single skin lesion	179	167	$193.95	$101.07
17110 Destruction of up to 14 skin growths	147	133	$216.67	$118.21
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	73	73	$204.70	$113.62
99202 New patient office or other outpatient visit, typically 20 minutes	71	71	$144.77	$79.62
17261 Destruction of cancer skin growth of trunk, arms, or legs, 0.6-1.0 cm	34	33	$281.41	$148.42
11103 Biopsy of related skin growth, each additional growth	30	28	$103.00	$57.65
99201 New patient office or other outpatient visit, typically 10 minutes	28	28	$87.52	$46.65
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	24	22	$27.13	$15.20
11900 Injection into skin growth, 1-7 growths	22	20	$106.07	$54.02
Q0112 All potassium hydroxide (koh) preparations	21	21	$15.00	$5.79
17262 Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm	21	19	$340.85	$181.50
17281 Destruction of malignant growth (0.6 to 1.0 centimeters) of face, ears, eyelids, nose, lips, or mouth	13	13	$343.85	$185.32

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	598	148	$10.94	$6.05
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	309	282	$207.20	$114.75
17000 Destruction of skin growth	286	256	$126.28	$57.76
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	215	34	$2.93	$1.61
11102 Tangential biopsy of single skin lesion	200	186	$191.52	$98.98
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	182	145	$86.42	$47.84
99213 Established patient office or other outpatient visit, typically 15 minutes	164	137	$141.43	$78.42
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	116	116	$206.23	$114.52
17110 Destruction of up to 14 skin growths	91	84	$214.47	$116.09
99202 New patient office or other outpatient visit, typically 20 minutes	81	81	$145.42	$79.81
11103 Biopsy of related skin growth, each additional growth	35	30	$103.34	$57.18
99201 New patient office or other outpatient visit, typically 10 minutes	35	35	$87.80	$48.61
17262 Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm	34	28	$341.71	$169.62
17261 Destruction of cancer skin growth of trunk, arms, or legs, 0.6-1.0 cm	28	24	$280.69	$141.47
Q0112 All potassium hydroxide (koh) preparations	20	19	$15.00	$5.71
11900 Injection into skin growth, 1-7 growths	17	16	$104.98	$52.99
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	15	14	$32.00	$17.73
69100 Biopsy of ear	14	14	$190.60	$94.23
17271 Destruction of cancer skin growth of scalp, neck, hands, feet, or genitals, 0.6-1.0 cm	13	13	$318.46	$162.66
17281 Destruction of malignant growth (0.6 to 1.0 centimeters) of face, ears, eyelids, nose, lips, or mouth	13	13	$346.82	$191.93

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	398	112	$23.25	$5.60
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	242	221	$193.16	$112.73
17000 Destruction of skin growth	216	188	$129.56	$59.06
99213 Established patient office or other outpatient visit, typically 15 minutes	183	154	$131.65	$75.74
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	166	37	$4.74	$1.81
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	139	123	$97.28	$45.55
11100 Biopsy of single growth of skin and/or tissue	136	119	$175.65	$105.15
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	104	104	$193.01	$113.24
17110 Destruction of up to 14 skin growths	78	73	$193.50	$115.34
99202 New patient office or other outpatient visit, typically 20 minutes	68	68	$131.81	$78.81
11900 Injection into skin growth, 1-7 growths	30	21	$101.20	$50.75
99201 New patient office or other outpatient visit, typically 10 minutes	29	29	$136.68	$46.95
17262 Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm	27	23	$317.95	$169.07
11101 Biopsy of each additional growth of skin and/or tissue	23	18	$59.44	$34.48
Q0112 All potassium hydroxide (koh) preparations	21	20	$15.00	$5.71
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	16	15	$48.70	$21.71
17261 Destruction of cancer skin growth of trunk, arms, or legs, 0.6-1.0 cm	13	12	$246.85	$137.10

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
17003 Destruction of precancer skin growth, 2-14 growths	346	104	$30.00	$5.89
17000 Destruction of skin growth	223	191	$130.00	$56.84
99213 Established patient office or other outpatient visit, typically 15 minutes	218	179	$130.00	$75.60
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg	213	31	$5.00	$1.79
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	181	164	$190.00	$110.40
11100 Biopsy of single growth of skin and/or tissue	141	128	$170.00	$101.40
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more	126	110	$100.00	$45.30
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	116	116	$190.00	$111.07
17110 Destruction of up to 14 skin growths	109	90	$184.59	$114.98
99202 New patient office or other outpatient visit, typically 20 minutes	98	98	$130.00	$77.50
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention	24	22	$50.00	$26.78
17262 Destruction of cancer skin growth of trunk, arms, or legs, 1.1-2.0 cm	20	18	$310.00	$173.32
17261 Destruction of cancer skin growth of trunk, arms, or legs, 0.6-1.0 cm	18	15	$236.79	$128.78
99201 New patient office or other outpatient visit, typically 10 minutes	17	17	$105.88	$45.71
17281 Destruction of malignant growth (0.6 to 1.0 centimeters) of face, ears, eyelids, nose, lips, or mouth	14	12	$300.00	$185.29
87220 Tissue fungi or parasites	12	11	$15.00	$5.74
11101 Biopsy of each additional growth of skin and/or tissue	11	11	$59.10	$33.87

Medical Specialties & State Licenses

CMS Verified: 2021-03-15

Physician Assistant Primary Specialty

NUCC Taxonomy Code: 363A00000X

State License MA 1521

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

9700340 (MA)

Commercial Insurance / Payer ID Anthem

290001521MA01 (MA)

Commercial Insurance / Payer ID Group Npi

114411681 (MA)

Hospital & Practice Group Affiliations

Pioneer Valley Dermatology Pc

29 B Cottage St, Amherst, MA 010021206

Phone: 9783717010

Practice Associates & Co-Workers

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

4 Associated Practitioners

Victoria Lucas , PA-C

Physician Assistant - Medical

NPI 1396398251

Physician Assistant (Certified)

Dr. Michael Horwich , MD, PhD

Dermatology

NPI 1538470976

Doctor of Medicine (M.D.), Doctor of Philosophy (Ph.D.)

Dr. Richard Wyatt , MD

Dermatology

NPI 1568447613

Doctor of Medicine (M.D.)

Michael Brown , PA-C

Physician Assistant

NPI 1770686859

Physician Assistant (Certified)

Career & Practice History Timeline

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

8 Historical Events

📍

Updated Practice Location March 15, 2021

Registered at 29 COTTAGE STREET, B (PIONEER VALLEY DERMATOLOGY), AMHERST, MA 010021206 (Tel: 4134063250)

📍

Updated Business Mailing Address March 15, 2021

Registered at 29B COTTAGE ST, AMHERST, MA 010021206 (Tel: 5087543823)

✅

NPI Profile Active July 11, 2011

NPI status registered as active in NPPES database

📍

Updated Practice Location July 11, 2011

Registered at 100 MARTIN LUTHER KING JR. BLVD., WORCESTER, MA 01608 (Tel: 5087543823)

📍

Updated Business Mailing Address July 11, 2011

Registered at 100 MARTIN LUTHER KING JR. BLVD, WORCESTER, MA 01608 (Tel: 5087543823)

👤

Provider Name / Credentials Updated July 11, 2011

Recorded as BLAIR MAEROWITZ, PA-C

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) July 11, 2011

Physician Assistant (License #1521 in MA)

🟢

Initial NPI Registration & Enumeration March 09, 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: 1235107970

Entity Type:

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

Enumeration Date: March 09, 2006

Last Update: March 15, 2021

Sole Proprietor: No

Update or Correct Profile

Mailing Address

29b Cottage St

Amherst, MA 010021206

Phone: 5087543823

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.