Barbara Showalter, MD
NPI 1669435947 · Family Medicine Physician · Merced, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Barbara Showalter, MD is a Family Medicine Physician provider in Merced, CA (NPI 1669435947).
Provider details
- NPI number
- 1669435947
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- G063855 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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 · 11 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Morphine Sulfatebrand: Morphine Sulfate Er | 47 |
| Oxycodone Hcl | 44 |
| Alprazolam | 24 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 19 |
| Oxycodone Hclbrand: Oxycontin | 15 |
| Carisoprodol | 14 |
| Omeprazole | 13 |
| Lorazepam | 12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-08
- Last updated
- 2009-03-25
Frequently asked questions
- What is Barbara Showalter's NPI number?
- Barbara Showalter's National Provider Identifier (NPI) is 1669435947, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Barbara Showalter's specialty?
- Barbara Showalter is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Barbara Showalter located?
- Barbara Showalter's practice location on file with NPPES is 2039 Canal St, Merced, CA 95340-3726.
- What is Barbara Showalter's phone number?
- The practice phone number listed in the NPPES registry for Barbara Showalter is (209) 723-7761.
- Does Barbara Showalter accept Medicare?
- Barbara Showalter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Barbara Showalter's NPI active?
- Yes — Barbara Showalter's NPI (1669435947) is active in the NPPES registry as of the last update on 2009-03-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.