Niceto Lopez, MD
Hospitalist Physician · Walnut Creek, CA
Niceto Lopez, MD is a hospitalist physician with a practice address in Walnut Creek, California, and NPI 1003012931, issued on Jun 26, 2007. Check the license (California A96421, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Niceto Lopez
- Credential
- MD
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A96421 CA
Self-reported in NPPES; status is on the state search - Practice location
- 801 Ygnacio Valley RD, Walnut Creek, CA 94596
- Phone
- (925) 946-1080
- Enumerated
- Jun 26, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 801 Ygnacio Valley RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Gayle Anderson, RPTPhysical Therapist1881638948
- Douglas Boakye, DOHospitalist Physician1407974249
- Kurukulasooriya Fernando, MDHospitalist Physician1255459756
- Mahsa Modarres Sabzevari, MSPTOrthopedic Physical Therapist1689784944
- Peter Rowe, M.D.Hospitalist Physician1700831922
- Charlene Spencer, M.D.Hospitalist Physician1821037367
Verify Niceto Lopez in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A96421Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14.7 times the Medicare Part D claims of the average hospitalist physician in 2024
7,655 Medicare Part D claims for 246 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims. 151 claims were for opioids.
Most prescribed
- Atorvastatin Calcium440 claims
- Amlodipine Besylate327 claims
- Eliquis278 claims
- Famotidine229 claims
- Gabapentin205 claims
- Levothyroxine Sodium199 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Niceto Lopez among 3,099 hospitalist physician records in California
Niceto Lopez, MD is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 27% of them.
- NPI issued2007 · 27% of these records are older, 66% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileNo · 81% of these records are
- Record last updated2007 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
68 hospitalist physician records list a practice address in Walnut Creek
They are 68 of the 6,170 NPPES records with a practice address in Walnut Creek, and 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Walnut Creek → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Anna Bavykina, MDWalnut Creek, CA 945961467530535
- Michael Fein, MDWalnut Creek, CA 945961942388046
- Prathibha Gubbi Ravishankar, MDWalnut Creek, CA 945961528146693
- Ravinder Gupta, MDWalnut Creek, CA 945961649358714
- Brent Levenfeld, MDWalnut Creek, CA 945961154409233
- Tsao-Yu Liang, MDWalnut Creek, CA 945961053499137
- Ramon Ortiz, MDWalnut Creek, CA 945961376621433
- Peter Rowe, M.D.Walnut Creek, CA 945961700831922
Common questions
What is Niceto Lopez, MD's NPI number?
Niceto Lopez, MD's National Provider Identifier (NPI) is 1003012931, issued on Jun 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Niceto Lopez, MD located?
The NPPES record lists a practice address at 801 Ygnacio Valley RD, Walnut Creek, CA, 94596. Phone: (925) 946-1080. Providers update this record themselves, so call before visiting.
How can I verify Niceto Lopez, MD's license?
NPPES lists California license number A96421, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Niceto Lopez, MD prescribe under Medicare Part D?
In 2024, Niceto Lopez, MD had 7,655 Medicare Part D claims for 246 beneficiaries; the average among hospitalist physician prescribers was 521. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.