NPPES file of Aug 9, 2026

Emily Ellen Cook, D.O.

Ophthalmology Physician · Pasadena, CA

Emily Ellen Cook, D.O. is an ophthalmology physician with a practice address in Pasadena, California, and NPI 1770748758, issued on Jul 18, 2008. Check the license (California 20A10709, 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
1770748758
Name
Emily Ellen Cook
Credential
D.O.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
20A10709 CA
Self-reported in NPPES; status is on the state search
Practice location
630 S Raymond Ave Unit 230, Pasadena, CA 91105
Phone
(626) 577-1115
Enumerated
Jul 18, 2008
Record last updated
Aug 24, 2020 (not updated in 6 years: call before relying on the address or phone)
Fax
(626) 577-1385
Medicare enrollment
Enrolled (PECOS I20111004000297); accepts Medicare assignment
Medical or professional school
At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 2005
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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Verify Emily Ellen Cook in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A10709
    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

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95% fewer Medicare Part D claims than the average ophthalmology physician in 2024

75 Medicare Part D claims for 25 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.

  1. Emily Cook75
  2. Specialty average1,518

Most prescribed

  1. Latanoprost40 claims
  2. Lumigan11 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 practice group's MIPS final score for 2023 (Medicare payment program): 79.2 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score48.3
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. George M Rajacich MD IncVan Nuys, CA

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

Emily Ellen Cook among 2,899 ophthalmology physician records in California

Emily Ellen Cook, D.O. 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 updated2020 · 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. Rizwan Bhatti, M.D.Pasadena, CA 911051588724108
  2. Gerald Bowns, MDPasadena, CA 911051225000672
  3. Joseph Davidson, M.D.Pasadena, CA 911051467487926
  4. Jeffrey Hong, MDPasadena, CA 911051922049055
  5. Hugo Hsu, MDPasadena, CA 911051336153816
  6. Michael Ip, MDPasadena, CA 911051982670402
  7. John Irvine, M.D.Pasadena, CA 911051316009103
  8. Marta Mora, M.D.Pasadena, CA 911051093766651

Common questions

What is Emily Ellen Cook, D.O.'s NPI number?

Emily Ellen Cook, D.O.'s National Provider Identifier (NPI) is 1770748758, issued on Jul 18, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Emily Ellen Cook, D.O. located?

The NPPES record lists a practice address at 630 S Raymond Ave Unit 230, Pasadena, CA, 91105. Phone: (626) 577-1115. Providers update this record themselves, so call before visiting.

How can I verify Emily Ellen Cook, D.O.'s license?

NPPES lists California license number 20A10709, 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 Emily Ellen Cook, D.O. prescribe under Medicare Part D?

In 2024, Emily Ellen Cook, D.O. had 75 Medicare Part D claims for 25 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Emily Ellen Cook, D.O.'s MIPS final score?

The 2023 MIPS final score is 79.2 of 100, reported for the practice group. 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.