DR. GERALD J CHASE (M.D.) – Internal Medicine Physician, NPI 1720061468

DR. GERALD J CHASE (M.D.) is a healthcare provider. based in Auburn, Massachusetts. specializing in INTERNAL MEDICINE. They hold the professional credentials M.D.. They hold a License No. 56185 (MA). The NPI Number for DR. GERALD J CHASE (M.D.) is 1720061468

Main info

Male
48 Years Of Experience
Accepts Medicare Assignment
Name
DR. GERALD J CHASE (M.D.)
NPI
1720061468
Phone
(508) 721-4000
Address
103 MILLBURY ST
Enumeration Date
28 November 2005
Last Update Date
31 January 2024

Doctor Profile

Medical School Name
ICAHN SCHOOL OF MEDICINE AT MOUNT SINAI
Secondary Phone
5083341000
Graduation Year
1978 (48 years ago)
PAC ID
2668429390
Group Practice PAC ID
4284539891
Professional Enrollment ID
I20050405001045
Address ID
MA016550002WO55XXXNXXX400

Contacts

Secure Messaging
gchase22378@UmassMemorial.direct-ci.com
FHIR Endpoint
https://epicproxy.et0978.epichosted.com/FHIRProxy/api/FHIR/DSTU2/
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience64
Completeness85
Years active:20State licenses:1Other namesUpdated within 12 months

7,722 INTERNAL MEDICINE in MA

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Provider Addresses for DR. GERALD J CHASE (M.D.)

  • 103;105, Millbury Street, Pondville, Auburn, Worcester County, Massachusetts, 01501, United States

    AUBURN, MA 015013205

    Phone: (508) 721-4000

    Type: Location

  • PO Box 846028, Albany Street, Church Green, Financial District, Boston, Suffolk County, Massachusetts, 02284-6028, United States

    BOSTON, MA 022415348

    Phone:

    Type: Mailing

  • 367 PLANTATION ST

    WORCESTER, MA 016052323

    Phone: (508) 334-1443

    Fax: (508) 334-1448

    Type: Location

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2005-04-05

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20050405001045IInternal MedicineMATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99214Established patient office or other outpatient visit, 30-39 minutes9861$0
99213Established patient office or other outpatient visit, 20-29 minutes9368$0
View full utilization report →

Insurance plans in this area (ZIP 01501)

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Provider's Procedures

DR. GERALD J CHASE (M.D.) performs procedures in INTERNAL MEDICINE. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
INTERNAL MEDICINEMA81002Urinalysis, manual test2012

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 4284539891View full group profile
NameSpecialtyState
Certified Registered Nurse Anesthetist (Crna)MA
-MA
-MA
Family PracticeMA
Physician AssistantMA
Pulmonary Disease, Critical Care (Intensivists), Allergy/ImmunologyMA
-MA
-MA
Internal MedicineMA
Nurse PractitionerMA

Reviews

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Frequently asked questions

What number should I use to identify DR. GERALD J CHASE (M.D.) for billing?
Administrative and clinical systems typically use NPI 1720061468 for DR. GERALD J CHASE (M.D.).
Quick check: is DR. GERALD J CHASE (M.D.) active?
Public NPPES data shows DR. GERALD J CHASE (M.D.) with an active NPI status right now.
Which specialty label fits DR. GERALD J CHASE (M.D.)?
NPPES ties DR. GERALD J CHASE (M.D.) to Internal Medicine Physician in the taxonomy section. Clinical services aligned with this taxonomy classification.
Can patients visit DR. GERALD J CHASE (M.D.) in Auburn, Massachusetts?
For routing, start with Auburn, Massachusetts for DR. GERALD J CHASE (M.D.), then verify phone and hours locally.
What is the difference between NPI and a medical license?
An NPI is a federal identifier; a medical license is issued by a state and governs where someone may practice.

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