ALAN W TSENG MD, PHD
NPI 1518420520
Internal Medicine - Hematology in Northampton, MA

Q: What is Alan Tseng's NPI number?

The NPI number for Alan Tseng is 1518420520. It was assigned to this individual provider in the NPPES registry on April 8, 2019.

Q: What is Alan Tseng's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology, with taxonomy code 207RH0000X.

Q: When was this NPI record last updated?

The NPPES record for Alan Tseng was last updated on August 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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 April 08, 2019PECOS EnrolledAccepts Medicare Assignment

30 LOCUST ST, NORTHAMPTON, MA 01060(413) 582-2900 Get Directions Write a Review

NPPES record last updated: August 1, 2025. Verified against the NPPES registry weekly; last sync: August 16, 2026.

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About Alan W Tseng Md, Phd NPPES

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

ALAN W TSENG MD, PHD (NPI 1518420520) is an individual hematology provider in Northampton, Massachusetts, licensed in Massachusetts (1024260) and active in the NPI registry since April 2019. He is enrolled in Medicare PECOS, is affiliated with Cooley Dickinson Hospital Inc,the, and is a graduate of Louisiana State University School Of Medicine In New Orleans (2018).

NPPES Registry Identity

NPI1518420520

Entity TypeIndividualMale

Primary Taxonomy207RH0000X

Provider Legal NameALAN W TSENGCredential: MD, PHD

Location Address30 LOCUST STNorthampton, MA 01060-2052

Mailing Address30 Locust StNorthampton, MA 01060-2052

Phone(413) 582-2900

Sole ProprietorNo

Medical School CMSLouisiana State University School Of Medicine In New OrleansGraduated 2018

Enumeration DateApril 8, 2019

Last NPPES UpdateAugust 1, 2025

NPPES CertifiedAugust 1, 2025

✔ NPI 1518420520 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · HematologyAllopathic & Osteopathic Physicians

Taxonomy Code207RH0000X

License✔ Licensed in MA · 1024260

Definition

An internist with additional training who specializes in diseases of the blood, spleen and lymph. This specialist treats conditions such as anemia, clotting disorders, sickle cell disease, hemophilia, leukemia and lymphoma.

30 LOCUST ST, Northampton, MA 01060

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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

Alan W Tseng Md, Phd 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 ID244748499

PECOS Enrollment IDI20250731001803

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.

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

$177.36 typical visit price

range $58.86 – $177.36

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

Most-billed visit code 99205

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 Alan Tseng's NPI number?

The NPI number for Alan Tseng is 1518420520. It was assigned to this individual provider in the NPPES registry on April 8, 2019.

Where is Alan Tseng located?

Alan Tseng practices at 30 Locust St, Northampton, MA 01060. The listed phone number is (413) 582-2900.

What is Alan Tseng's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology, with taxonomy code 207RH0000X.

Is Alan Tseng enrolled in Medicare?

Yes. Alan Tseng 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.

Is Alan Tseng affiliated with any hospitals?

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

When was this NPI record last updated?

The NPPES record for Alan Tseng was last updated on August 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.