Jack Chang MD PC
NPI 1235114216 · Internal Medicine Physician · Lowell, MA
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jack Chang MD PC is a Internal Medicine Physician organization in Lowell, MA (NPI 1235114216).
Provider details
- NPI number
- 1235114216
- Entity type
- Organization
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Jack Chang, MD(978) 937-9333
- License
- 74694 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-12-13
- Last updated
- 2020-08-22
Frequently asked questions
- What is Jack Chang MD PC's NPI number?
- Jack Chang MD PC's National Provider Identifier (NPI) is 1235114216, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Jack Chang MD PC?
- Jack Chang MD PC is classified in the NPPES registry as Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jack Chang MD PC located?
- Jack Chang MD PC's practice location on file with NPPES is 706 Rogers St, Lowell, MA 01852-4338.
- What is Jack Chang MD PC's phone number?
- The practice phone number listed in the NPPES registry for Jack Chang MD PC is (978) 937-9333.
- Does Jack Chang MD PC accept Medicare?
- Jack Chang MD PC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Jack Chang MD PC?
- The authorized official listed on Jack Chang MD PC's NPPES record is Jack Chang, MD. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Jack Chang MD PC's NPI active?
- Yes — Jack Chang MD PC's NPI (1235114216) is active in the NPPES registry as of the last update on 2020-08-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.