Lionel Marshall Nelson, MD
Otolaryngology Physician · San Jose, CA
Lionel Marshall Nelson, MD is an otolaryngology physician with a practice address in San Jose, California, and NPI 1902838063, issued on Jul 7, 2006. Check the license (California G19842, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lionel Marshall Nelson
- Credential
- MD
- Primary taxonomy
- Otolaryngology Physician 207Y00000X
- License number
- G19842 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2577 Samaritan Dr Ste 765, San Jose, CA 95124
- Phone
- (408) 358-6163
- Enumerated
- Jul 7, 2006
- Record last updated
- Feb 28, 2025
- Fax
- (408) 358-2302
- Medicare enrollment
- Enrolled (PECOS I20101227000110); accepts Medicare assignment
- Medical or professional school
- Yale University School Of Medicine, 1969
- Entity
- Type 1 · individual
8 nearest otolaryngology physician records → All 1,212 in California → Look up another NPI →
Also registered at 2577 Samaritan Dr Ste 765
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Katrina Chaung, M.D.Otolaryngology Physician1487810990
- Shaun Frost, PAPhysician Assistant1548301773
- Mark Kita, M.D.Otolaryngology Physician1417968009
- Michael Murray, M.D.Otolaryngology Physician1750475828
- Fernando NaranjoPhysician Assistant1295687689
- Danielle Ourada, AU.DAudiologist1740842806
Verify Lionel Marshall Nelson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G19842Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
49% fewer Medicare Part D claims than the average otolaryngology physician in 2024
274 Medicare Part D claims for 130 beneficiaries, against an average of 541 among the 8,339 providers of this specialty who prescribed in Part D.
Most prescribed
- Ipratropium Bromide71 claims
- Mometasone Furoate24 claims
- Methylprednisolone22 claims
- Pilocarpine Hcl19 claims
- Fluocinolone Acetonide Oil17 claims
- Montelukast Sodium16 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.
The MIPS final score for 2023 (Medicare payment program): 87.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $200.75
1 payment: food and beverage; the largest payer was Neurent Medical Limited. The 6,429 providers of this specialty with any payment received $1,922.50 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
- Bass Medical GroupLos Gatos, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Lionel Marshall Nelson among 1,212 otolaryngology physician records in California
Lionel Marshall Nelson, MD is one of 1,212 otolaryngology physician records with a practice address in California. 80% 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 7% of them.
- NPI issued2006 · 7% of these records are older, 52% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1969 · median 2004 among the 818 with a school on file
- Record last updated2025 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Y00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Otolaryngology Physician providers in California
There are 1,212 otolaryngology physician records in California.
All 1,212 in California → Every provider in San Jose → Otolaryngology Physician nationwide →
The 8 otolaryngology physician records with the nearest ZIP codes
- Katrina Chaung, M.D.San Jose, CA 951241487810990
- Alexander GoelSan Jose, CA 951241558822056
- Mark Kita, M.D.San Jose, CA 951241417968009
- Michael Murray, M.D.San Jose, CA 951241750475828
- Michael Purkey, MDSan Jose, CA 951241417182593
- Hussein Samji, M.D.San Jose, CA 951241124160510
- James Linehan, M.D.San Jose, CA 951231871655548
- Misha Amoils, MDSan Jose, CA 951281902162563
Common questions
What is Lionel Marshall Nelson, MD's NPI number?
Lionel Marshall Nelson, MD's National Provider Identifier (NPI) is 1902838063, issued on Jul 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Lionel Marshall Nelson, MD located?
The NPPES record lists a practice address at 2577 Samaritan Dr Ste 765, San Jose, CA, 95124. Phone: (408) 358-6163. Providers update this record themselves, so call before visiting.
How can I verify Lionel Marshall Nelson, MD's license?
NPPES lists California license number G19842, 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 Lionel Marshall Nelson, MD prescribe under Medicare Part D?
In 2024, Lionel Marshall Nelson, MD had 274 Medicare Part D claims for 130 beneficiaries; the average among otolaryngology physician prescribers was 541. Part D covers Medicare prescriptions only.
What is Lionel Marshall Nelson, MD's MIPS final score?
The 2023 MIPS final score is 87.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.