Nelson R. Maldonado, M.D.
Surgery Physician · Grass Valley, CA
Nelson R. Maldonado, M.D. is a surgery physician with a practice address in Grass Valley, California, and NPI 1508921305, issued on Dec 22, 2006. Check the license (California G53915, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Nelson R. Maldonado
- Credential
- M.D.
- Primary taxonomy
- Surgery Physician 208600000X
- License number
- G53915 CA
Self-reported in NPPES; status is on the state search - Practice location
- 150 Catherine LN, Grass Valley, CA 95945
- Phone
- (530) 477-0931
- Enumerated
- Dec 22, 2006
- Record last updated
- Apr 12, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (530) 477-0934
- Medicare enrollment
- Enrolled (PECOS I20050316000473); accepts Medicare assignment
- Medical or professional school
- University Of California, Irvine, California College Of Medicine, 1983
- Entity
- Type 1 · individual
8 nearest surgery physician records → All 3,118 in California → Look up another NPI →
Also registered at 150 Catherine LN
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Christopher Claydon, M.D.Geriatric Medicine (Family Medicine) Physician1518965235
- Susan Claydon, N.P.Family Nurse Practitioner1336147057
- Ruth Cutter, N.P.Family Nurse Practitioner1033232012
- Gwendolyn Eymann, RN-NPCommunity Health Nurse Practitioner1730392184
- Daniel Greenberg, LACAcupuncturist1861868226
Verify Nelson R. Maldonado in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G53915Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
27% fewer Medicare Part D claims than the average surgery physician in 2024
108 Medicare Part D claims for 49 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 42 claims were for opioids.
Most prescribed
- Lorazepam50 claims
- Hydrocodone-Acetaminophen39 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.
Industry payments in 2024: $148.66
6 payments; by number, the most common kind was food and beverage; the largest payer was Bard Peripheral Vascular, Inc. The 17,103 providers of this specialty with any payment received $3,513.80 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Jeffrey Brooks MD IncNapa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nelson R. Maldonado among 3,118 surgery physician records in California
Nelson R. Maldonado, M.D. is one of 3,118 surgery physician records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 55% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1983 · median 2003 among the 1,901 with a school on file
- Record last updated2012 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Surgery Physician providers in California
There are 3,118 surgery physician records in California.
All 3,118 in California → Every provider in Grass Valley → Surgery Physician nationwide →
The 8 surgery physician records with the nearest ZIP codes
- Thomas Boyle, MDGrass Valley, CA 959451467483966
- Asfandyar Khan, M.DGrass Valley, CA 959451750765392
- Robert Michelin, M.D.Grass Valley, CA 959451154478055
- Minor Ward, M.D.Grass Valley, CA 959451487696464
- Stephen Waterbrook, M.D.Grass Valley, CA 959451558564872
- Federico Gregorio, M.D.Colusa, CA 959321437184876
- Lawrence Highman, MDColusa, CA 959321316992068
- Marcella McLarty, M.D.Chico, CA 959281841295706
Common questions
What is Nelson R. Maldonado, M.D.'s NPI number?
Nelson R. Maldonado, M.D.'s National Provider Identifier (NPI) is 1508921305, issued on Dec 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Nelson R. Maldonado, M.D. located?
The NPPES record lists a practice address at 150 Catherine LN, Grass Valley, CA, 95945. Phone: (530) 477-0931. Providers update this record themselves, so call before visiting.
How can I verify Nelson R. Maldonado, M.D.'s license?
NPPES lists California license number G53915, 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 Nelson R. Maldonado, M.D. prescribe under Medicare Part D?
In 2024, Nelson R. Maldonado, M.D. had 108 Medicare Part D claims for 49 beneficiaries; the average among surgery physician prescribers was 147. 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.