Michelle Crosby, M.D., PH.D.
Ophthalmology Physician · Encinitas, CA
Michelle Crosby, M.D., PH.D. is an ophthalmology physician with a practice address in Encinitas, California, and NPI 1558549303, issued on Feb 4, 2008. Check the license (California A108687, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Michelle Crosby
- Credential
- M.D., PH.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- A108687 CA
058458 GA
Self-reported in NPPES; status is on the state search - Practice location
- 477 N EL Camino Real Ste C300, Encinitas, CA 92024
- Phone
- (760) 257-5550
- Enumerated
- Feb 4, 2008
- Record last updated
- Jul 28, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20100902000482); accepts Medicare assignment
- Medical or professional school
- Medical University Of South Carolina College Of Medicine, 2005
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 2,899 in California → Look up another NPI →
Verify Michelle Crosby in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A108687Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average ophthalmology physician in 2024
919 Medicare Part D claims for 239 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.
Most prescribed
- Moxifloxacin126 claims
- Latanoprost120 claims
- Bromfenac Sodium81 claims
- Difluprednate67 claims
- Prednisolone Acetate61 claims
- Timolol Maleate51 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: $800.73
14 payments; by number, the most common kind was food and beverage; the largest payer was RxSight Inc. 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.
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
- Grossmont Dermatology Medical ClinicLa Mesa, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michelle Crosby among 2,899 ophthalmology physician records in California
Michelle Crosby, M.D., PH.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 2008, is newer than 67% of them.
- NPI issued2008 · 67% of these records are older, 28% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2005 · median 2001 among the 1,907 with a school on file
- Record last updated2021 · 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 Encinitas → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Andre Aung, MDEncinitas, CA 920241750802880
- Srinivas Iyengar, MDEncinitas, CA 920241104030055
- Eric Johnston, MDEncinitas, CA 920241114916053
- Joan Kaestner, MDEncinitas, CA 920241184723728
- Richard Massengill, M.D.Encinitas, CA 920241649320292
- Jeffrey Morris, MDEncinitas, CA 920241093768186
- Arash Mozayan Isfahani, M.D.Encinitas, CA 920241093948176
- Ehsan Mozayan-Isfahani, MDEncinitas, CA 920241588924849
Common questions
What is Michelle Crosby, M.D., PH.D.'s NPI number?
Michelle Crosby, M.D., PH.D.'s National Provider Identifier (NPI) is 1558549303, issued on Feb 4, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Michelle Crosby, M.D., PH.D. located?
The NPPES record lists a practice address at 477 N EL Camino Real Ste C300, Encinitas, CA, 92024. Phone: (760) 257-5550. Providers update this record themselves, so call before visiting.
How can I verify Michelle Crosby, M.D., PH.D.'s license?
NPPES lists California license number A108687, 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 Michelle Crosby, M.D., PH.D. prescribe under Medicare Part D?
In 2024, Michelle Crosby, M.D., PH.D. had 919 Medicare Part D claims for 239 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Michelle Crosby, M.D., PH.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.