Josefina Baca-Asher, PA-C
NPI 1477796688 · Physician Assistant · Redwood City, CA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Josefina Baca-Asher, PA-C is a Physician Assistant provider in Redwood City, CA (NPI 1477796688).
Provider details
- NPI number
- 1477796688
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
- License
- PA53721 (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 tenure25% of score
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
733 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. 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 .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 202 | $118 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 110 | $83 |
| Replacement of Thigh Bone and Hip Joint With Prosthesis27130 | 65 | $183 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 55 | $93 |
| X-Ray of Knee, 1-2 Views73560 | 49 | $33 |
| Replacement of Knee Joint, Both Sides of Knee |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Celecoxib | 119 | 85 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 76 | 69 |
| Diclofenac Sodium | 74 | 54 |
| Meloxicam | 67 | 29 |
| Tramadol Hcl | 53 | 52 |
| Gabapentin | 22 | 19 |
| Naproxen | 20 | 16 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$305 across 8 records (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
Additional practice locations (1)
- 450 Broadway StRedwood City, CA 94063Phone: (650) 250-2584Fax: (650) 721-3420
Registry dates
- Enumerated
- 2009-04-17
- Last updated
- 2019-06-03
Frequently asked questions
- What is Josefina Baca-Asher's NPI number?
- Josefina Baca-Asher's National Provider Identifier (NPI) is 1477796688, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Josefina Baca-Asher's specialty?
- Josefina Baca-Asher is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Josefina Baca-Asher located?
- Josefina Baca-Asher's practice location on file with NPPES is 450 Broadway St, Redwood City, CA 94063.
- What is Josefina Baca-Asher's phone number?
- The practice phone number listed in the NPPES registry for Josefina Baca-Asher is (650) 250-2584.
- Does Josefina Baca-Asher accept Medicare?
- Josefina Baca-Asher is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Josefina Baca-Asher's NPI active?
- Yes — Josefina Baca-Asher's NPI (1477796688) is active in the NPPES registry as of the last update on 2019-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.