PETER G. CHRISTAKOS MD
NPI 1811976384
Pathology - Anatomic Pathology & Clinical Pathology in Northampton, MA

Q: What is Peter Christakos's NPI number?

The NPI number for Peter Christakos is 1811976384. It was assigned to this individual provider in the NPPES registry on January 12, 2006.

Q: What is Peter Christakos's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Q: When was this NPI record last updated?

The NPPES record for Peter Christakos was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since January 12, 2006PECOS EnrolledAccepts Medicare Assignment

30 LOCUST ST, NORTHAMPTON, MA 01060(413) 582-2175(413) 582-2954 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Peter G. Christakos Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

PETER G. CHRISTAKOS MD (NPI 1811976384) is an individual anatomic pathology & clinical pathology provider in Northampton, Massachusetts, licensed in Massachusetts (223215) and active in the NPI registry since January 2006. He is enrolled in Medicare PECOS, is affiliated with Cooley Dickinson Hospital Inc,the, and is a graduate of University Of Vermont College Of Medicine (2000).

NPPES Registry Identity

NPI1811976384

Entity TypeIndividualMale

Primary Taxonomy207ZP0102X

Provider Legal NamePETER G. CHRISTAKOSCredential: MD

Location Address30 LOCUST STNorthampton, MA 01060-2052

Mailing Address30 Locust StNorthampton, MA 01060-2052 · (413) 582-2175 · Fax (413) 582-2954

Phone(413) 582-2175

Fax(413) 582-2954

Sole ProprietorNo

Medical School CMSUniversity Of Vermont College Of MedicineGraduated 2000

Enumeration DateJanuary 12, 2006

Last NPPES UpdateJuly 13, 2026

✔ NPI 1811976384 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPathology · Anatomic Pathology & Clinical PathologyAllopathic & Osteopathic Physicians

Taxonomy Code207ZP0102X

License✔ Licensed in MA · 223215

Definition

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.

30 LOCUST ST, Northampton, MA 01060

Open in Google Maps ↗

Other Identifiers 7

Other6301423MA · Cigna

OtherAA25150MA · Harvard Pilgrim

Other011303MA · Tufts

OtherJ24564MA · Bcbs Ma

Medicaid2092361MA

Other35391MA · Health New England

Other000000029147MA · Bmc

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Taro Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Peter G. Christakos Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID2860440120

PECOS Enrollment IDI20050104000621

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Peter Christakos reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Hampshire Pathologists, Inc.

Same address

Anatomic Pathology & Clinical Pathology

30 LOCUST ST
Northampton, MA 01060

Reassigned Medicare billing, Massachusetts enrollment
3 clinicians in this Medicare group

NPI 1750326161 (413) 582-2175

Mass General Brigham Community Physicians Inc

79 mi

Cardiovascular Disease

137 MAIN ST
Medford, MA 02155

Reassigned Medicare billing, Massachusetts enrollment
258 clinicians in this Medicare group

NPI 1548638265 (781) 395-4909

Brigham & Womens Physicians Organization Inc

79 mi

Internal Medicine

75 FRANCIS ST
Boston, MA 02115

Reassigned Medicare billing, Massachusetts enrollment
4,574 clinicians in this Medicare group

NPI 1033535497 (617) 732-5500

The General Hospital Corporation

81 mi

General Acute Care Hospital

55 FRUIT ST, BULFINCH 360
Boston, MA 02114

Reassigned Medicare billing, Massachusetts enrollment
6,234 clinicians in this Medicare group

NPI 1023049236 (617) 726-2000

Massachusetts General Physicians Organization Inc

81 mi

Dermatology

55 FRUIT ST, BUL 2
Boston, MA 02114

Reassigned Medicare billing, Massachusetts enrollment
6,360 clinicians in this Medicare group

NPI 1801874573 (617) 724-0287

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 19

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Pathology examination of tissue using a microscope, intermediate complexity 88305

A pathology examination of tissue with intermediate complexity involves studying a small sample of your body tissue under a microscope. This helps in identifying any abnormal cells or signs of disease. It's a detailed process requiring expert analysis to ensure accurate results.

1,777 services933 patients

Special stained specimen slides to examine tissue, initial procedure 88342

This procedure involves the use of specially stained slides to examine tissue samples. The initial process involves obtaining a small tissue sample from your body. This sample is then placed on a slide and stained with special dyes to highlight different structures and elements. The stained slide is then examined under a microscope to help diagnose any potential health issues.

231 services200 patients

Special stained specimen slides to examine tissue, each additional procedure 88341

Special stained specimen slides are used to analyze tissue in detail. In this process, extra procedures may be needed for a more thorough examination. These involve applying special stains to the tissue on slides, enhancing specific elements for closer study.

163 services60 patients

Cell examination of specimen, selective cellular enhancement technique 88112

Cell examination of a specimen using selective cellular enhancement technique is a lab process that improves the visibility of certain cells in a sample. It helps in identifying abnormalities or diseases. The process is non-invasive, safe, and aids in accurate diagnosis.

126 services76 patients

Pathology examination of tissue using a microscope, moderately high complexity 88307

A pathology examination of tissue with moderate complexity involves a detailed study of a small tissue sample from your body. Using a microscope, experts analyze the tissue's structure and cells to identify any abnormalities. This helps in diagnosing various health conditions accurately.

85 services59 patients

Pathology examination of tissue using a microscope, moderately low complexity 88304

A pathology examination of tissue, moderately low complexity, involves studying a small sample of your body tissue under a microscope. It helps to identify any abnormal cells or diseases. It's a routine procedure, not complex, and provides crucial insights for your diagnosis.

82 services65 patients

Pap test, evaluation of fine needle aspirate, immediate, each additional evaluation episode 88177

A Pap test is a procedure that checks for abnormal cells in the body, which could indicate a serious condition. The evaluation of a fine needle aspirate is a process where a small sample is taken with a thin needle for examination. This can be done multiple times for a thorough analysis.

79 services24 patients

Pathology examination of tissue using a microscope, limited examination 88300

A pathology examination of tissue using a microscope is a procedure where a small sample of your tissue is observed under a microscope. This limited examination helps identify any abnormal cells or signs of disease, aiding in accurate diagnosis and treatment planning.

52 services46 patients

Evaluation of fine needle aspirate with interpretation and report 88173

This procedure involves using a thin needle to collect a small sample from an abnormal area or lump. The sample is then examined under a microscope to identify any potential issues. A report of the findings is provided for further analysis.

48 services37 patients

Evaluation of fine needle aspirate 88172

Evaluation of fine needle aspirate is a diagnostic procedure where a thin needle is used to collect cells from a lump or mass. This sample is then examined under a microscope to determine the nature of the lump, whether it's benign (non-cancerous) or malignant (cancerous).

41 services32 patients

Pathology cytologic examination of specimen during surgery, initial site 88333

A pathology cytologic examination during surgery involves taking a small sample of cells from the initial site of concern. This sample is then examined under a microscope by a pathologist to check for any abnormal or disease-causing cells. This helps guide the ongoing surgical procedure.

29 services26 patients

Special stained specimen slides to identify organisms including interpretation and report 88312

This service involves coloring specimen slides in a special way to help identify organisms. The colors make different parts of the organism stand out. Afterward, a detailed interpretation and report on the findings are provided.

27 services22 patients

Pathology examination of specimen during surgery, first tissue block 88331

A pathology examination during surgery involves the immediate analysis of a removed tissue sample. This helps the surgeon make decisions during your operation. The "first tissue block" refers to the initial sample examined. It's a vital step to ensure your health.

27 services24 patients

Microscopic genetic analysis of tumor, manual 88360

Microscopic genetic analysis of a tumor involves examining your tumor's genes under a microscope. This helps identify specific genetic changes in the tumor cells. This information can aid in diagnosing, predicting disease progression, and determining the most effective treatment options.

27 services11 patients

Pap test 88141

A Pap test is a routine exam that checks for changes in cells that could signal a health concern. During this test, a small sample of cells is gently collected from the lower region of the body. The sample is then examined under a microscope to ensure everything looks normal.

23 services23 patients

Crystal identification from tissue or body fluid 89060

Crystal identification from tissue or body fluid is a medical test that helps identify the presence of certain substances in the body. It involves analyzing samples from your body to detect crystals that may indicate health conditions like gout or kidney stones.

23 services22 patients

Preparation of tissue for examination by removing any calcium present 88311

This procedure involves treating tissue samples to remove any calcium, which can interfere with the examination. The tissue is soaked in a special solution that safely dissolves the calcium, leaving the tissue intact for accurate analysis. This helps in making precise diagnoses.

18 services17 patients

Pathology cytologic examination of specimen during surgery, each additional site 88334

A Pathology Cytologic Examination is a test performed during surgery to examine cells from an additional site in your body. This helps identify any abnormal or diseased cells. It's an important tool in diagnosing and managing various conditions.

18 services13 patients

Special stained specimen slides to examine tissue including interpretation and report 88313

Special stained specimen slides are used to examine tissue samples. This involves applying special dyes to the tissue, which helps to highlight certain features under a microscope. The findings are then interpreted and a report is provided. This can aid in diagnosing various health conditions.

15 services11 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Cooley Dickinson Hospital Inc,the

Acute Care Hospitals · Northampton, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220015

Location30 Locust StreetNorthampton, MA 01060 · Hampshire County

Emergency services Birthing friendly

Massachusetts General Hospital

Acute Care Hospitals · Boston, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220071

Location55 Fruit StreetBoston, MA 02114 · Suffolk County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01060 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$134.47 typical visit price

range $58.86 – $177.36

Typical copayment $33.61 (range $14.71 – $44.34)

Most-billed visit code 99204

Established Patient

$103.48 typical visit price

range $19.11 – $144.84

Typical copayment $25.87 (range $4.77 – $36.21)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

REID MOTHA PA-C

Physician Assistant

30 LOCUST ST
NORTHAMPTON, MA 01060

Hampshire County (413) 582-2000

KIRSTEN CHEREE BRINGARDNER PA-C

Physician Assistant

30 LOCUST ST, COOLEY DICKINSON HOSPITALIST PROGRAM
NORTHAMPTON, MA 01060

Hampshire County (413) 582-2563

BRIAN JOHNSON MD

Anesthesiology

30 LOCUST ST
NORTHAMPTON, MA 01060

Hampshire County (413) 582-2105

ALEXANDER VOSHCHIN MD

Anesthesiology

30 LOCUST ST
NORTHAMPTON, MA 01060

Hampshire County (413) 582-2105

ALYS MALCOLM M.D.

Internal Medicine (Hematology & Oncology)

30 LOCUST ST
NORTHAMPTON, MA 01060

Hampshire County (413) 582-2900

CHRISTINE KRINITSYN PA-C

Physician Assistant (Medical)

30 LOCUST ST
NORTHAMPTON, MA 01060

Hampshire County (413) 582-2363

KATHERINE MARY JAYCOX LICSW

Social Worker

30 LOCUST ST
NORTHAMPTON, MA 01060

Hampshire County (413) 582-2396

MAE ELIZABETH BECKFORD-BRUNO RN

Student in an Organized Health Care Education/Training Program

30 LOCUST ST
NORTHAMPTON, MA 01060

Hampshire County (413) 582-2000

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Peter Christakos's NPI number?

The NPI number for Peter Christakos is 1811976384. It was assigned to this individual provider in the NPPES registry on January 12, 2006.

Where is Peter Christakos located?

Peter Christakos practices at 30 Locust St, Northampton, MA 01060. The listed phone number is (413) 582-2175.

What is Peter Christakos's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Anatomic Pathology & Clinical Pathology, with taxonomy code 207ZP0102X.

Is Peter Christakos enrolled in Medicare?

Yes. Peter Christakos is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Peter Christakos's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Peter Christakos reassigns Medicare benefits to 5 organizations: Hampshire Pathologists, Inc. (Northampton, MA), Mass General Brigham Community Physicians Inc (Medford, MA), Brigham & Womens Physicians Organization Inc (Boston, MA), The General Hospital Corporation (Boston, MA) and Massachusetts General Physicians Organization Inc (Boston, MA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Peter Christakos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Peter Christakos accept?

Health plans from Taro Health list Peter Christakos as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Peter Christakos affiliated with any hospitals?

According to CMS data, Peter Christakos is affiliated with Cooley Dickinson Hospital Inc,the and Massachusetts General Hospital.

When was this NPI record last updated?

The NPPES record for Peter Christakos was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.