ABBY HORNSTEIN MD
NPI 1427048628
Pathology - Blood Banking & Transfusion Medicine in Gardner, MA

Q: What is Abby Hornstein's NPI number?

The NPI number for Abby Hornstein is 1427048628. It was assigned to this individual provider in the NPPES registry on October 27, 2005.

Q: What is Abby Hornstein's specialty?

The primary specialty registered for this NPI is Pathology, specializing in Blood Banking & Transfusion Medicine, with taxonomy code 207ZB0001X.

Q: When was this NPI record last updated?

The NPPES record for Abby Hornstein was last updated on May 5, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since October 27, 2005PECOS EnrolledAccepts Medicare Assignment

82.04/100

CMS Quality Rating

242 GREEN ST, GARDNER, MA 01440(978) 630-6256(978) 630-6489 Get Directions Write a Review

NPPES record last updated: May 5, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: May 5, 2026, Sep 11, 2025 (2 updates tracked since 2025).

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About Abby Hornstein Md NPPES

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

ABBY HORNSTEIN MD (NPI 1427048628) is an individual blood banking & transfusion medicine provider in Gardner, Massachusetts, licensed in Massachusetts (80164) and active in the NPI registry since October 2005. She is enrolled in Medicare PECOS, is affiliated with Our Lady Of Fatima Hospital, and maintains a secondary practice location in Providence.

NPPES Registry Identity

NPI1427048628

Entity TypeIndividualFemale

Primary Taxonomy207ZB0001X

Provider Legal NameABBY HORNSTEINCredential: MD

Location Address242 GREEN STGardner, MA 01440-1336

Mailing Address242 Green StGardner, MA 01440-1336 · (978) 630-6256 · Fax (978) 630-6489

Phone(978) 630-6256

Fax(978) 630-6489

Sole ProprietorNo

Medical School CMSPerelman School Of Med At The University Of PennsylvaniaGraduated 1990

Enumeration DateOctober 27, 2005

Last NPPES UpdateMay 5, 20262 updates tracked since enumeration

NPPES CertifiedMay 5, 2026

✔ NPI 1427048628 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPathology · Blood Banking & Transfusion MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207ZB0001X

License✔ Licensed in MA · 80164

Definition

A physician who specializes in blood banking/transfusion medicine is responsible for the maintenance of an adequate blood supply, blood donor and patient-recipient safety and appropriate blood utilization. Pre-transfusion compatibility testing and antibody testing assure that blood transfusions, when indicated, are as safe as possible. This physician directs the preparation and safe use of specially prepared blood components, including red blood cells, white blood cells, platelets and plasma constituents, and marrow or stem cells for transplantation.

Also ListedPathology · Anatomic Pathology & Clinical PathologyTaxonomy 207ZP0102X · License 80164 (MA), MD08831 (RI)

Also ListedPathology · Clinical Pathology/Laboratory MedicineTaxonomy 207ZP0105X · License 80164 (MA)

242 GREEN ST, Gardner, MA 01440

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Secondary Practice Location 1

Location 1825 Chalkstone AveProvidence, RI 02908-4728 · Phone (401) 456-2109

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Abby Hornstein 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 ID8123248150

PECOS Enrollment IDI20140925001438, I20190131001278

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.

Areas of Expertise CMS Part B claims 13

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.

867 services462 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.

371 services281 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.

139 services40 patients

Surgical pathology, gross and microscopic examinations, for prostate needle biopsy, any method G0416

This procedure involves taking a small tissue sample from your gland located beneath your bladder. The sample is then examined under a microscope by a pathologist to check for any abnormalities or diseases. This is a standard method to ensure your well-being.

75 services75 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.

73 services69 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.

71 services56 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.

56 services51 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.

54 services54 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.

44 services40 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.

44 services42 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.

41 services22 patients

Special stained specimen slides to examine tissue, each multiplex procedure 88344

Special stained specimen slides are used to study tissue in detail. This multiplex procedure involves applying different dyes to the tissue sample on a slide to highlight specific elements. These colors help identify any abnormalities in the tissue, aiding in accurate diagnosis and treatment planning.

23 services11 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.

20 services17 patients

Hospital Affiliations CMS Care Compare 5

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

Our Lady Of Fatima Hospital

Acute Care Hospitals · North Providence, RI

3/5 CMS rating

OwnershipProprietary

CMS Certification Number410005

Location200 High Service AvenueNorth Providence, RI 02904 · Providence County

Emergency services

Newport Hospital

Acute Care Hospitals · Newport, RI

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number410006

Location11 Friendship StreetNewport, RI 02840 · Newport County

Emergency services Birthing friendly

Rhode Island Hospital

Acute Care Hospitals · Providence, RI

3/5 CMS rating

OwnershipTribal

CMS Certification Number410007

Location593 Eddy StreetProvidence, RI 02903 · Providence County

Emergency services

South County Hospital Inc

Acute Care Hospitals · Wakefield, RI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number410008

Location100 Kenyon AveWakefield, RI 02879 · Washington County

Emergency services Birthing friendly

The Miriam Hospital

Acute Care Hospitals · Providence, RI

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number410012

Location164 Summit AvenueProvidence, RI 02906 · Providence County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01440 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

82.04/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Individually scored

Quality

100

Improvement Activities

Cost

90.14

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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.

JANE ALLARD RN

Registered Nurse