NPPES file of Aug 9, 2026

Robert Lynn Sorenson, M.D.

Ophthalmology Physician · Berkeley, CA

Robert Lynn Sorenson, M.D. is an ophthalmology physician with a practice address in Berkeley, California, and NPI 1235220799, issued on Sep 27, 2006. Check the license (California G045092, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1235220799
Name
Robert Lynn Sorenson
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
G045092 CA
Self-reported in NPPES; status is on the state search
Practice location
3010 Colby St, Berkeley, CA 94705
Phone
(510) 848-1413
Enumerated
Sep 27, 2006
Record last updated
Apr 17, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(510) 848-7347
Medicaid ID
GR0021950 CA
Medicare enrollment
Enrolled (PECOS I20081117000839); accepts Medicare assignment
Medical or professional school
University Of California, San Diego School Of Medicine, 1981
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 3010 Colby St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Veronica Chang, DDSGeneral Practice Dentistry1194970848
  2. Robert Fowler, M.D.Surgery Physician1891879417
  3. Elisabeth Griffinger-Guidi, CNMAdvanced Practice Midwife1851558571
  4. Nicola Hanchock, M.D.Internal Medicine Physician1518074830
  5. Brian Hinrichsen, PAEmergency Medicine Physician1376534792
  6. Rebecca Janik, M.D.Ophthalmology Physician1518223080

Verify Robert Lynn Sorenson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G045092
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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14% fewer Medicare Part D claims than the average ophthalmology physician in 2024

1,304 Medicare Part D claims for 430 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.

  1. Robert Sorenson1,304
  2. Specialty average1,518

Most prescribed

  1. Latanoprost377 claims
  2. Prednisolone Acetate142 claims
  3. Timolol Maleate120 claims
  4. Ketorolac Tromethamine116 claims
  5. Tobramycin-Dexamethasone104 claims
  6. Brimonidine Tartrate-Timolol53 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, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $193.09

5 payments; by number, the most common kind was food and beverage; the largest payer was Glaukos Corporation. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Robert Sorenson$193.09
  2. Specialty average$4,535.02

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

  1. Sorenson And Sorenson MD IncBerkeley, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Robert Lynn Sorenson among 2,899 ophthalmology physician records in California

Robert Lynn Sorenson, 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 updated2008 · 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.

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Rebecca Janik, M.D.Berkeley, CA 947051518223080
  2. Myron Lee, M.D.Berkeley, CA 947051215023395
  3. Andrew Sorenson, M.D.Berkeley, CA 947051326139981
  4. Tara Starr, MDBerkeley, CA 947051124150065
  5. Leonardo Dacanay, M.D.Berkeley, CA 947041679509269
  6. John Gilman, MDBerkeley, CA 947071215279567
  7. Melissa Neuwelt, M.D.Berkeley, CA 947021093917247
  8. Jane Loman, M.D.Oakland, CA 946121346274024

Common questions

What is Robert Lynn Sorenson, M.D.'s NPI number?

Robert Lynn Sorenson, M.D.'s National Provider Identifier (NPI) is 1235220799, issued on Sep 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Robert Lynn Sorenson, M.D. located?

The NPPES record lists a practice address at 3010 Colby St, Berkeley, CA, 94705. Phone: (510) 848-1413. Providers update this record themselves, so call before visiting.

How can I verify Robert Lynn Sorenson, M.D.'s license?

NPPES lists California license number G045092, 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 Robert Lynn Sorenson, M.D. prescribe under Medicare Part D?

In 2024, Robert Lynn Sorenson, M.D. had 1,304 Medicare Part D claims for 430 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Robert Lynn Sorenson, 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.