Karen Lopez-Acero, CNM
NPI 1912588567 · Advanced Practice Midwife · San Francisco, CA
Enrolled with Medicare as Practitioner - Certified Nurse Midwife (cnm) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Lopez-Acero, CNM is a Advanced Practice Midwife provider in San Francisco, CA (NPI 1912588567).
Provider details
- NPI number
- 1912588567
- Entity type
- Individual
- Primary specialty
- Advanced Practice MidwifePhysician Assistants & Advanced Practice Nursing Providers
- Credential
- CNM
- Sex
- Female
- Sole proprietor
- Yes
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 tenure38% of score
5 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2021-04-15
- Last updated
- 2021-04-15
- Certified
- 2021-04-09
Frequently asked questions
- What is Karen Lopez-Acero's NPI number?
- Karen Lopez-Acero's National Provider Identifier (NPI) is 1912588567, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Lopez-Acero's specialty?
- Karen Lopez-Acero is listed in the NPPES registry with a primary specialty of Advanced Practice Midwife (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Lopez-Acero located?
- Karen Lopez-Acero's practice location on file with NPPES is 1001 Potrero Ave Bldg 252nd, San Francisco, CA 94110-3518.
- What is Karen Lopez-Acero's phone number?
- The practice phone number listed in the NPPES registry for Karen Lopez-Acero is (628) 206-9806.
- Does Karen Lopez-Acero accept Medicare?
- Karen Lopez-Acero is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Lopez-Acero's NPI active?
- Yes — Karen Lopez-Acero's NPI (1912588567) is active in the NPPES registry as of the last update on 2021-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.