Karen Gruwell, PA-C
NPI 1447526025 · Physician Assistant · Long Beach, CA
Karen Gruwell, PA-C is a Physician Assistant provider in Long Beach, CA (NPI 1447526025).
Provider details
- NPI number
- 1447526025
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA 11006 (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 tenure38% of score
14 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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 4 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 26 | 16 |
| Amoxicillin/Potassium Clavbrand: Amoxicillin-Clavulanate Potass | 21 | 16 |
| Estradiolbrand: Estradiol (twice Weekly) | 12 | — |
| Estrogens, Conjugatedbrand: Premarin | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-03-28
- Last updated
- 2016-02-20
Frequently asked questions
- What is Karen Gruwell's NPI number?
- Karen Gruwell's National Provider Identifier (NPI) is 1447526025, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Gruwell's specialty?
- Karen Gruwell is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Gruwell located?
- Karen Gruwell's practice location on file with NPPES is 2880 Atlantic Ave, Long Beach, CA 90806-1714.
- What is Karen Gruwell's phone number?
- The practice phone number listed in the NPPES registry for Karen Gruwell is (626) 337-0424.
- Is Karen Gruwell's NPI active?
- Yes — Karen Gruwell's NPI (1447526025) is active in the NPPES registry as of the last update on 2016-02-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.