Alan D. Sampson, M.D.
Ophthalmology Physician · Lakeport, CA
Alan D. Sampson, M.D. is an ophthalmology physician with a practice address in Lakeport, California, and NPI 1518046754, issued on Nov 6, 2006. Check the license (California A39638, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alan D. Sampson
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- A39638 CA
Self-reported in NPPES; status is on the state search - Practice location
- 987 Parallel Dr, Lakeport, CA 95453
- Phone
- (707) 263-3500
- Enumerated
- Nov 6, 2006
- Record last updated
- Dec 5, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20111026000369); accepts Medicare assignment
- Medical or professional school
- University Of Iowa, Rj & L Carver College Of Medicine, 1981
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Also registered at 987 Parallel Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chelsie Toni Gho, NPFamily Nurse Practitioner1801635842
- Frederick Johnson, M.D.Anesthesiology Physician1104983360
- Helen Johnson, M.D.Pain Medicine (Anesthesiology) Physician1316006299
- Valeria PinedaFamily Nurse Practitioner1912828971
Verify Alan D. Sampson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A39638Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% fewer Medicare Part D claims than the average ophthalmology physician in 2024
1,446 Medicare Part D claims for 333 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Latanoprost358 claims
- Ofloxacin171 claims
- Dexamethasone Sodium Phosphate154 claims
- Lumigan149 claims
- Timolol Maleate95 claims
- Brimonidine Tartrate77 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Alan D. Sampson among 2,899 ophthalmology physician records in California
Alan D. Sampson, M.D. is one of 2,899 ophthalmology physician records with a practice address in California. 79% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 45% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1981 · median 2001 among the 1,907 with a school on file
- Record last updated2016 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in California
There are 2,899 ophthalmology physician records in California.
All 2,899 in California → Every provider in Lakeport → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Gary Barth, M.D.Healdsburg, CA 954481992783237
- Robert Nelson, MDGualala, CA 954451104962638
- Eric Kahle, M.D.Sebastopol, CA 954721578541900
- Daniel Ahn, D.O.Sonoma, CA 954761932416781
- Thomas Dixon, MDSonoma, CA 954761558437152
- Mark Schluter, M.D.Sonoma, CA 954761275581126
- Jack Mason, MDUkiah, CA 954821245267087
- Geoffrey Rice, M.D.Ukiah, CA 954821194776948
Common questions
What is Alan D. Sampson, M.D.'s NPI number?
Alan D. Sampson, M.D.'s National Provider Identifier (NPI) is 1518046754, issued on Nov 6, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alan D. Sampson, M.D. located?
The NPPES record lists a practice address at 987 Parallel Dr, Lakeport, CA, 95453. Phone: (707) 263-3500. Providers update this record themselves, so call before visiting.
How can I verify Alan D. Sampson, M.D.'s license?
NPPES lists California license number A39638, 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 Alan D. Sampson, M.D. prescribe under Medicare Part D?
In 2024, Alan D. Sampson, M.D. had 1,446 Medicare Part D claims for 333 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Alan D. Sampson, M.D.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.