Niceto Lopez, MD
NPI 1003012931 · Hospitalist Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Niceto Lopez, MD is a Hospitalist Physician provider in Walnut Creek, CA (NPI 1003012931).
Provider details
- NPI number
- 1003012931
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A96421 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
18 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
5,836 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Nursing Facility Care With Moderate Level of Medical Decision Making, Per Day, If Using Time, at Least 30 Minutes99309 | 2,885 | $106 |
| Subsequent Nursing Facility Care With Straightforward Level of Medical Decision Making, Per Day, If Using Time, 20 Minutes Or More99308 | 2,610 | $73 |
| Initial Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, 50 Minutes Or More99306 | 120 | $177 |
| Subsequent Nursing Facility Care With High Level of Medical Decision Making, Per Day, If Using Time, at Least 45 Minutes99310 | 99 | $150 |
| Nursing Facility Discharge Day Management, 30 Minutes Or Less99315 | 68 | $80 |
| Nursing Facility Discharge Management, More Than 30 Minutes99316 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 146 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 440 | 76 |
| Amlodipine Besylate | 327 | 58 |
| Apixabanbrand: Eliquis | 278 | 30 |
| Famotidine | 229 | 36 |
| Gabapentin | 205 | 35 |
| Levothyroxine Sodium | 199 | 31 |
| Metoprolol Tartrate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-06-26
- Last updated
- 2007-07-08
Frequently asked questions
- What is Niceto Lopez's NPI number?
- Niceto Lopez's National Provider Identifier (NPI) is 1003012931, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Niceto Lopez's specialty?
- Niceto Lopez is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Niceto Lopez located?
- Niceto Lopez's practice location on file with NPPES is 801 Ygnacio Valley Rd, Walnut Creek, CA 94596-3871.
- What is Niceto Lopez's phone number?
- The practice phone number listed in the NPPES registry for Niceto Lopez is (925) 946-1080.
- Does Niceto Lopez accept Medicare?
- Niceto Lopez is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Niceto Lopez's NPI active?
- Yes — Niceto Lopez's NPI (1003012931) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.