Active NPI 1154493351 Individual Practitioner Male Practitioner

Dr. Peter M. Sadow , MD, PhD

Pathology - Anatomic Pathology • Boston, MA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Peter Sadow, MD, PhD is a certified Pathology - Anatomic Pathology practicing in Boston, MA. With approximately 22 years of clinical experience since graduating from University Of Chicago, Pritzker School Of Medicine in 2004, Dr. Sadow delivers high-quality medical care to the local community at 55 FRUIT ST.

Dr. Sadow is affiliated with Massachusetts General Physicians Organization Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include pathology examination of tissue using a microscope, intermediate complexity, special stained specimen slides to examine tissue, pathology examination of specimen during surgery, first tissue block. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

55 Fruit St
Warren 219

Boston, MA 021142621

Telephone 6175733159

Fax 6175733389

Associated Practice Facility / Clinic

🏢 Massachusetts General Hospital Facility NPI 1184613721

Medicare Profile & Education

Medical School

University Of Chicago, Pritzker School Of Medicine

Graduation Year

2004

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Pathology - Anatomic Pathology in Boston, MA

Senior Veteran Specialist (>20 Yrs)

Practitioner Clinical Experience

22 Yrs -3.8 yrs vs City Avg

City Avg: 25.8 Yrs

State Avg: 35.7 Yrs

Regional Practice Density

201 Specialists

Practicing in Boston, MA (303 Statewide)

Telehealth Adoption Rate

0.5% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

76.6% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Sadow (22 Years) 22 Yrs

Boston Specialty Average (25.8 Years) 25.8 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
88305 Pathology examination of tissue using a microscope, intermediate complexity	744	338	$158.75	$38.32
88341 Special stained specimen slides to examine tissue	353	82	$118.37	$28.43
88331 Pathology examination of specimen during surgery, first tissue block	339	119	$263.10	$63.82
88307 Pathology examination of tissue using a microscope, moderately high complexity	266	157	$347.45	$84.20
88342 Special stained specimen slides to examine tissue, initial procedure	146	122	$205.00	$35.87
88304 Pathology examination of tissue using a microscope, moderately low complexity	127	78	$64.00	$11.68
88360 Microscopic genetic analysis of tumor	82	73	$225.00	$42.56
88309 Pathology examination of tissue using a microscope, high complexity	61	49	$610.95	$148.55
88311 Preparation of tissue for examination by removing any calcium present	58	48	$52.45	$12.39
G0416 Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method	51	51	$737.06	$180.38
88312 Special stained specimen slides to identify organisms including interpretation and report	49	30	$111.86	$27.29
88365 Genetic sequencing localization, initial procedure	49	43	$190.00	$43.97
88321 Surgical pathology consultation and report on referred slides prepared elsewhere	38	37	$354.26	$86.40
88300 Pathology examination of tissue using a microscope, limited examination	29	27	$19.00	$4.59

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	761	360	$153.26	$39.24
88341 Special stained specimen slides to examine tissue	458	89	$115.61	$29.81
88307 Pathology examination of tissue using a microscope, moderately high complexity	263	143	$339.26	$86.98
88331 Pathology examination of specimen during surgery, first tissue block	256	96	$255.71	$65.67
88342 Special stained specimen slides to examine tissue, initial procedure	145	125	$205.00	$36.68
88360 Microscopic genetic analysis of tumor	106	87	$225.00	$43.92
88304 Pathology examination of tissue using a microscope, moderately low complexity	81	62	$61.19	$11.96
88311 Preparation of tissue for examination by removing any calcium present	71	53	$51.00	$12.77
88309 Pathology examination of tissue using a microscope, high complexity	55	48	$596.78	$153.14
88321 Surgical pathology consultation and report on referred slides prepared elsewhere	50	50	$345.04	$88.79
88365 Genetic sequencing localization, initial procedure	46	40	$182.96	$45.36
G0416 Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method	46	46	$728.39	$187.35
88312 Special stained specimen slides to identify organisms including interpretation and report	42	32	$108.86	$27.91
88344 Special stained specimen slides to examine tissue	35	13	$156.29	$40.32
88300 Pathology examination of tissue using a microscope, limited examination	28	28	$19.00	$4.68

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	749	356	$157.14	$40.41
88331 Pathology examination of specimen during surgery, first tissue block	387	123	$262.63	$67.28
88341 Special stained specimen slides to examine tissue	306	66	$114.44	$30.16
88307 Pathology examination of tissue using a microscope, moderately high complexity	246	135	$345.80	$89.05
88342 Special stained specimen slides to examine tissue, initial procedure	109	97	$205.00	$37.20
88304 Pathology examination of tissue using a microscope, moderately low complexity	105	73	$60.00	$12.18
88311 Preparation of tissue for examination by removing any calcium present	82	61	$50.33	$13.43
88360 Microscopic genetic analysis of tumor	66	60	$225.00	$44.82
G0416 Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method	63	63	$718.63	$191.19
88309 Pathology examination of tissue using a microscope, high complexity	54	50	$610.48	$156.66
88321 Surgical pathology consultation and report on referred slides prepared elsewhere	49	49	$351.31	$90.35
88365 Genetic sequencing localization, initial procedure	41	35	$181.95	$47.04
88312 Special stained specimen slides to identify organisms including interpretation and report	36	21	$107.19	$28.02
88300 Pathology examination of tissue using a microscope, limited examination	26	26	$19.00	$4.81
88344 Special stained specimen slides to examine tissue	22	14	$154.64	$41.05

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	1,012	429	$159.00	$41.15
88331 Pathology examination of specimen during surgery, first tissue block	478	159	$264.00	$68.29
88341 Special stained specimen slides to examine tissue	341	66	$117.40	$31.29
88307 Pathology examination of tissue using a microscope, moderately high complexity	256	148	$350.00	$91.04
88342 Special stained specimen slides to examine tissue, initial procedure	139	120	$205.00	$38.13
88311 Preparation of tissue for examination by removing any calcium present	115	77	$51.57	$13.70
88360 Microscopic genetic analysis of tumor	111	102	$225.00	$45.82
88365 Genetic sequencing localization, initial procedure	77	66	$184.00	$47.06
88309 Pathology examination of tissue using a microscope, high complexity	61	51	$617.00	$157.44
88321 Surgical pathology consultation and report on referred slides prepared elsewhere	58	58	$354.00	$92.11
88312 Special stained specimen slides to identify organisms including interpretation and report	54	41	$110.80	$29.29
88304 Pathology examination of tissue using a microscope, moderately low complexity	48	34	$58.50	$12.18
88314 Special stained specimen slides to examine tissue and frozen preparation of specimen including interpretation and report	32	14	$93.00	$23.48
88300 Pathology examination of tissue using a microscope, limited examination	27	27	$19.00	$4.90
G0416 Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method	26	26	$736.31	$194.94
88332 Pathology examination of specimen during surgery, each additional tissue block	16	12	$131.00	$34.06

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	809	335	$156.78	$42.42
88331 Pathology examination of specimen during surgery, first tissue block	353	108	$260.60	$70.72
88341 Special stained specimen slides to examine tissue	260	53	$118.26	$31.94
88307 Pathology examination of tissue using a microscope, moderately high complexity	217	117	$344.91	$93.60
88342 Special stained specimen slides to examine tissue, initial procedure	101	90	$205.00	$39.73
88311 Preparation of tissue for examination by removing any calcium present	91	59	$51.26	$13.95
88360 Microscopic genetic analysis of tumor	85	75	$225.00	$47.57
88309 Pathology examination of tissue using a microscope, high complexity	53	45	$609.70	$164.93
88321 Surgical pathology consultation and report on referred slides prepared elsewhere	42	40	$347.10	$94.92
G0416 Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method	40	40	$737.75	$200.13
88365 Genetic sequencing localization, initial procedure	28	27	$180.57	$49.31
88314 Special stained specimen slides to examine tissue and frozen preparation of specimen including interpretation and report	27	14	$92.37	$24.89
88300 Pathology examination of tissue using a microscope, limited examination	23	21	$19.00	$5.05
88332 Pathology examination of specimen during surgery, each additional tissue block	23	11	$129.26	$35.23
88312 Special stained specimen slides to identify organisms including interpretation and report	19	17	$109.95	$29.99

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	751	347	$156.00	$42.03
88331 Pathology examination of specimen during surgery, first tissue block	312	109	$260.00	$69.81
88341 Special stained specimen slides to examine tissue	215	48	$117.32	$31.76
88307 Pathology examination of tissue using a microscope, moderately high complexity	213	139	$345.51	$92.37
88342 Special stained specimen slides to examine tissue, initial procedure	97	78	$205.00	$39.36
G0416 Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method	71	71	$729.51	$194.65
88311 Preparation of tissue for examination by removing any calcium present	57	44	$51.68	$13.77
88309 Pathology examination of tissue using a microscope, high complexity	50	43	$610.80	$163.32
88321 Surgical pathology consultation and report on referred slides prepared elsewhere	34	33	$344.47	$90.79
88332 Pathology examination of specimen during surgery, each additional tissue block	25	11	$129.00	$34.53
88312 Special stained specimen slides to identify organisms including interpretation and report	19	14	$109.84	$29.35
88300 Pathology examination of tissue using a microscope, limited examination	18	14	$18.11	$4.98
88365 Genetic sequencing localization, initial procedure	15	15	$181.60	$48.46
88304 Pathology examination of tissue using a microscope, moderately low complexity	12	11	$55.50	$12.61

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	670	322	$149.80	$42.40
88331 Pathology examination of specimen during surgery, first tissue block	321	96	$254.86	$70.99
88341 Special stained specimen slides to examine tissue	212	46	$109.87	$31.72
88307 Pathology examination of tissue using a microscope, moderately high complexity	187	118	$339.63	$93.53
88342 Special stained specimen slides to examine tissue, initial procedure	71	64	$205.00	$39.73
G0416 Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method	53	53	$699.94	$197.80
88311 Preparation of tissue for examination by removing any calcium present	49	36	$51.20	$14.17
88309 Pathology examination of tissue using a microscope, high complexity	49	45	$602.94	$164.09
88312 Special stained specimen slides to identify organisms including interpretation and report	33	23	$105.73	$29.75
88321 Surgical pathology consultation and report on referred slides prepared elsewhere	28	28	$337.29	$93.56
88300 Pathology examination of tissue using a microscope, limited examination	21	19	$17.24	$4.97
88365 Genetic sequencing localization, initial procedure	14	14	$169.93	$49.24
88304 Pathology examination of tissue using a microscope, moderately low complexity	12	11	$54.00	$13.02

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity	699	306	$147.24	$41.33
88331 Pathology examination of specimen during surgery, first tissue block	262	90	$244.42	$69.14
88307 Pathology examination of tissue using a microscope, moderately high complexity	200	111	$329.23	$92.33
88341 Special stained specimen slides to examine tissue	195	41	$91.95	$31.32
88321 Surgical pathology consultation and report on referred slides prepared elsewhere	89	87	$327.78	$92.42
88342 Special stained specimen slides to examine tissue, initial procedure	66	63	$223.55	$39.16
88311 Preparation of tissue for examination by removing any calcium present	47	32	$48.32	$13.94
G0416 Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method	43	43	$694.00	$195.13
88309 Pathology examination of tissue using a microscope, high complexity	40	38	$584.48	$160.98
88314 Special stained specimen slides to examine tissue and frozen preparation of specimen including interpretation and report	36	13	$86.11	$24.44
88312 Special stained specimen slides to identify organisms including interpretation and report	32	20	$105.00	$29.77
88365 Genetic sequencing localization, initial procedure	23	21	$197.30	$48.57
88304 Pathology examination of tissue using a microscope, moderately low complexity	18	16	$54.00	$12.81
88300 Pathology examination of tissue using a microscope, limited examination	15	14	$17.87	$4.85

Medical Specialties & State Licenses

Pathology - Anatomic Pathology Primary Specialty

NUCC Taxonomy Code: 207ZP0101X

State License MA 231642

A pathologist deals with the causes and nature of disease and contributes to diagnosis, prognosis and treatment through knowledge gained by the laboratory application of the biologic, chemical and physical sciences. A pathologist uses information gathered from the microscopic examination of tissue specimens, cells and body fluids, and from clinical laboratory tests on body fluids and secretions for the diagnosis, exclusion and monitoring of disease.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID

110078639/A (MA)

Commercial Insurance / Payer ID Tufts

459091

Commercial Insurance / Payer ID Bc/bs

J42691 (MA)

Hospital & Practice Group Affiliations

Massachusetts General Physicians Organization Inc

243 Charles St, Boston, MA 021143002

Phone: 6172735699

Massachusetts General Physicians Organization Inc

55 Fruit St, Boston, MA 021142696

Phone: 6177240287

Practice Associates & Co-Workers

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

1 Associated Practitioners

Dr. William Faquin , MD PHD

Pathology - Cytopathology

NPI 1114908043

MDPHD

Career & Practice History Timeline

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

6 Historical Events

✅

NPI Profile Active December 05, 2013

NPI status registered as active in NPPES database

📍

Updated Practice Location December 05, 2013

Registered at 55 FRUIT ST, WARREN 219, BOSTON, MA 021142621 (Tel: 6175733159)

📍

Updated Business Mailing Address December 05, 2013

Registered at 55 FRUIT ST, PATHOLOGY SERVICE - WRN219, BOSTON, MA 021142621 (Tel: 6175733159)

👤

Provider Name / Credentials Updated December 05, 2013

Recorded as PETER SADOW, M.D., PH.D.

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) December 05, 2013

Pathology (License #231642 in MA)

🟢

Initial NPI Registration & Enumeration November 14, 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: 1154493351

Entity Type:

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

Enumeration Date: November 14, 2006

Last Update: December 05, 2013

Sole Proprietor: Yes

Update or Correct Profile

Mailing Address

55 Fruit St, Pathology Service - Wrn219

Boston, MA 021142621

Phone: 6175733159

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.