Mary Ann Quann, MD
NPI 1891702817 · Internal Medicine Physician · Fresno, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Ann Quann, MD is a Internal Medicine Physician provider in Fresno, CA (NPI 1891702817).
Provider details
- NPI number
- 1891702817
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- G42975 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$98 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-02
- Last updated
- 2014-04-26
Frequently asked questions
- What is Mary Ann Quann's NPI number?
- Mary Ann Quann's National Provider Identifier (NPI) is 1891702817, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Ann Quann's specialty?
- Mary Ann Quann is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mary Ann Quann located?
- Mary Ann Quann's practice location on file with NPPES is 2615 E Clinton Ave, Fresno, CA 93703-2223.
- What is Mary Ann Quann's phone number?
- The practice phone number listed in the NPPES registry for Mary Ann Quann is (559) 225-6100.
- Does Mary Ann Quann accept Medicare?
- Mary Ann Quann is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Ann Quann's NPI active?
- Yes — Mary Ann Quann's NPI (1891702817) is active in the NPPES registry as of the last update on 2014-04-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.