Amreen Masthan, DO
NPI 1619503968 · Pediatric Gastroenterology Physician · Chicago, IL
Enrolled with Medicare as Order and Referring Only - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Amreen Masthan, DO is a Pediatric Gastroenterology Physician provider in Chicago, IL (NPI 1619503968).
Provider details
- NPI number
- 1619503968
- Entity type
- Individual
- Primary specialty
- Pediatric Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- DO
- Sex
- Female
- Sole proprietor
- No
- License
- 036.168686 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 982185 Nebraska Medical CtrOmaha, NE 68198-2185Phone: (402) 559-5380Fax: (402) 559-5137
Registry dates
- Enumerated
- 2020-03-18
- Last updated
- 2024-06-11
- Certified
- 2024-06-10
Frequently asked questions
- What is Amreen Masthan's NPI number?
- Amreen Masthan's National Provider Identifier (NPI) is 1619503968, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Amreen Masthan's specialty?
- Amreen Masthan is listed in the NPPES registry with a primary specialty of Pediatric Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Amreen Masthan located?
- Amreen Masthan's practice location on file with NPPES is 420 E Superior St, Chicago, IL 60611-4494.
- What is Amreen Masthan's phone number?
- The practice phone number listed in the NPPES registry for Amreen Masthan is (312) 227-6435.
- Does Amreen Masthan accept Medicare?
- Amreen Masthan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Amreen Masthan's NPI active?
- Yes — Amreen Masthan's NPI (1619503968) is active in the NPPES registry as of the last update on 2024-06-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.