Mary Berg, NP
NPI 1336352939 · Obstetrics & Gynecology Nurse Practitioner · Upland, CA
Mary Berg, NP is a Obstetrics & Gynecology Nurse Practitioner provider in Upland, CA (NPI 1336352939).
Provider details
- NPI number
- 1336352939
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 389253 (CA)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
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.
$25 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
- 2007-05-08
- Last updated
- 2010-11-08
Frequently asked questions
- What is Mary Berg's NPI number?
- Mary Berg's National Provider Identifier (NPI) is 1336352939, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Berg's specialty?
- Mary Berg is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Berg located?
- Mary Berg's practice location on file with NPPES is 600 N Mountain Ave, Upland, CA 91786-4359.
- What is Mary Berg's phone number?
- The practice phone number listed in the NPPES registry for Mary Berg is (909) 931-1033.
- Is Mary Berg's NPI active?
- Yes — Mary Berg's NPI (1336352939) is active in the NPPES registry as of the last update on 2010-11-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.