DR. PUAY ENG TAN M.D., FRCPATH (UK)
NPI 1235196460
Pathology - Anatomic Pathology & Clinical Pathology in Lowell, MA

Q: What is Puay Eng Tan's NPI number?

The NPI number for Puay Eng Tan is 1235196460. It was assigned to this individual provider in the NPPES registry on May 1, 2006.

Q: What is Puay Eng Tan'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 Puay Eng Tan was last updated on June 14, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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 May 01, 2006PECOS EnrolledAccepts Medicare Assignment

1 HOSPITAL DR, LOWELL, MA 01852(978) 458-1411(978) 934-8401 Get Directions Write a Review

NPPES record last updated: June 14, 2022. Verified against the NPPES registry weekly; last sync: November 01, 2026.

On this page

About Dr. Puay Eng Tan M.d., Frcpath (uk) NPPES

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

DR. PUAY ENG TAN M.D., FRCPATH (UK) (NPI 1235196460) is an individual anatomic pathology & clinical pathology provider in Lowell, Massachusetts, licensed in Massachusetts (82006) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS, is affiliated with Mount Auburn Hospital, and maintains a secondary practice location in Burlington.

NPPES Registry Identity

NPI1235196460

Entity TypeIndividualFemale

Primary Taxonomy207ZP0102X

Provider Legal NameDR. PUAY ENG TANCredential: M.D., FRCPATH (UK)

Location Address1 HOSPITAL DRLowell, MA 01852-1311

Mailing Address9 Browning RdNewton Centre, MA 02459-2401 · (617) 332-1346

Phone(978) 458-1411

Fax(978) 934-8401

Sole ProprietorNo

Medical School CMSOtherGraduated 1978

Enumeration DateMay 1, 2006

Last NPPES UpdateJune 14, 2022

NPPES CertifiedJune 14, 2022

✔ NPI 1235196460 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 · 82006

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.

1 HOSPITAL DR, Lowell, MA 01852

Open in Google Maps ↗

Secondary Practice Location 1

Location 141 Mall RdBurlington, MA 01805-1311 · Phone (781) 744-8000

Other Identifiers 6

Other220029311Railroad Medicare

Medicaid3166066MA

Other34828MA · Harvard Pilgrim

Other61963MA · Fallon

OtherJ17778MA · Blue Cross

Other767645MA · Tufts

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

Dr. Puay Eng Tan M.d., Frcpath (uk) 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 ID8022914514

PECOS Enrollment IDI20031208000213

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 Puay Eng Tan reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Lahey Clinic, Inc.

11 mi

Internal Medicine

41 MALL RD, LAHEY CLINIC
Burlington, MA 01805

Reassigned Medicare billing, Massachusetts enrollment
Also billed through NPI 1063447316 (Massachusetts)
1,574 clinicians in this Medicare group

NPI 1538194980 (781) 744-8000

Steward Medical Group, Inc

22 mi

Specialist

77 WARREN ST
Brighton, MA 02135

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

NPI 1013220151 (615) 467-4158

Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr Inc

23 mi

Internal Medicine

330 BROOKLINE AVE
Boston, MA 02215

Reassigned Medicare billing, Massachusetts enrollment
Also billed through NPI 1346281938 (Massachusetts)
2,579 clinicians in this Medicare group

NPI 1194765438 (617) 754-9600

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 18

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.

1,057 services500 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.

185 services50 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.

175 services130 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.

112 services97 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.

80 services64 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.

75 services50 patients

Pathology examination of tissue using a microscope, intermediate complexity 88305

68 services49 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.

67 services57 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.

53 services39 patients

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

39 services19 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.

37 services25 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.

29 services19 patients

Special stained specimen slides to examine tissue, initial procedure 88342

28 services19 patients

Cell examination of specimen, selective cellular enhancement technique 88112

18 services17 patients

Pathology examination of tissue using a microscope 88302

A pathology examination of tissue involves studying a small sample of your body's cells under a microscope. This helps identify any abnormalities or diseases, such as cancer. The process is crucial for accurate diagnosis and treatment planning.

15 services15 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.

15 services11 patients

Evaluation of fine needle aspirate with interpretation and report 88173

13 services12 patients

Pathology examination of tissue using a microscope, high complexity 88309

A high complexity pathology examination involves studying body tissue under a microscope to identify any abnormalities. This intricate process helps in diagnosing various conditions and deciding on the best treatment plan.

11 services11 patients

Hospital Affiliations CMS Care Compare 4

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

Mount Auburn Hospital

Acute Care Hospitals · Cambridge, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220002

Location330 Mount Auburn StreetCambridge, MA 02138 · Middlesex County

Emergency services Birthing friendly

Northeast Hospital Corporation

Acute Care Hospitals · Beverly, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220033

Location85 Herrick StreetBeverly, MA 01915 · Essex County

Emergency services Birthing friendly

Brigham And Women's Hospital

Acute Care Hospitals · Boston, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220110

Location75 Francis StreetBoston, MA 02115 · Suffolk County

Emergency services Birthing friendly

Lahey Hospital & Medical Center, Burlington

Acute Care Hospitals · Burlington, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220171

Location41 & 45 Mall RoadBurlington, MA 01803 · Middlesex County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 01852 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

$144.11 typical visit price

range $63.72 – $189.86

Typical copayment $36.02 (range $15.93 – $47.46)

Most-billed visit code 99204

Established Patient

$111.18 typical visit price

range $21.07 – $155.29

Typical copayment $27.79 (range $5.26 – $38.82)

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.

DR. MATTHEW BORDEN PHARMD

Pharmacist

1 HOSPITAL DR
LOWELL, MA 01852

Middlesex County (978) 937-6000

DO NOT USE - THE LOWELL GENERAL HOSPITAL

General Acute Care Hospital

1 HOSPITAL DR
LOWELL, MA 01852

Middlesex County (978) 458-1411

GILLIAN GRAY

Registered Nurse

1 HOSPITAL DR
LOWELL, MA 01852

Middlesex County (978) 458-1411

MRS. MAUREEN E SCHAEFER

Physical Therapist

1 HOSPITAL DR
LOWELL, MA 01852

Middlesex County (978) 458-1411

EMILY REBECCA O'BRIEN LICSW

Social Worker (Clinical)

1 HOSPITAL DR
LOWELL, MA 01852

Middlesex County (978) 995-0313

ST JOHNS EMERGENCY ASSOC

Emergency Medicine

1 HOSPITAL DR, SAINTS MEDICAL CENTER
LOWELL, MA 01852

Middlesex County (978) 458-1411

MRS. ASHLEY LOUISE TOBEY PMH-NP

Clinical Nurse Specialist (Psychiatric/Mental Health)

1 HOSPITAL DR
LOWELL, MA 01852

Middlesex County (978) 934-8515

DENISE EVELYN BAXTER ARNP

Nurse Practitioner (Family)

1 HOSPITAL DR
LOWELL, MA 01852

Middlesex County (978) 934-8458

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 Puay Eng Tan's NPI number?

The NPI number for Puay Eng Tan is 1235196460. It was assigned to this individual provider in the NPPES registry on May 1, 2006.

Where is Puay Eng Tan located?

Puay Eng Tan practices at 1 Hospital Dr, Lowell, MA 01852. The listed phone number is (978) 458-1411.

What is Puay Eng Tan's specialty?

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

Is Puay Eng Tan enrolled in Medicare?

Yes. Puay Eng Tan 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 Puay Eng Tan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Puay Eng Tan reassigns Medicare benefits to 3 organizations: Lahey Clinic, Inc. (Burlington, MA), Steward Medical Group, Inc (Brighton, MA) and Harvard Medical Faculty Phys At Beth Israel Deaconess Med Ctr 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 Puay Eng Tan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Puay Eng Tan accept?

Health plans from Taro Health list Puay Eng Tan 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 Puay Eng Tan affiliated with any hospitals?

According to CMS data, Puay Eng Tan is affiliated with Mount Auburn Hospital, Northeast Hospital Corporation, Brigham And Women's Hospital and Lahey Hospital & Medical Center, Burlington.

When was this NPI record last updated?

The NPPES record for Puay Eng Tan was last updated on June 14, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.