Christopher Michael Brennan, OD
Optometrist · Philadelphia, PA
Christopher Michael Brennan, OD is an optometrist with a practice address in Philadelphia, Pennsylvania, and NPI 1801806625, issued on Aug 8, 2006. Check the license (Pennsylvania OEG001784, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Christopher Michael Brennan
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- OEG001784 PA
I30001318 DE
Self-reported in NPPES; status is on the state search - Practice location
- 5401 Old York RD, Philadelphia, PA 19141
- Phone
- (215) 456-7150
- Enumerated
- Aug 8, 2006
- Record last updated
- Jul 13, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20061130000150); accepts Medicare assignment
- Medical or professional school
- Pennsylvania College Of Optometry, 2006
- Entity
- Type 1 · individual
8 nearest optometrist records → All 2,640 in Pennsylvania → Look up another NPI →
Also registered at 5401 Old York RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Christopher Michael Brennan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license OEG001784Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
9.7 times the Medicare Part D claims of the average optometrist in 2024
2,690 Medicare Part D claims for 595 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 52% of claims.
Most prescribed
- Latanoprost670 claims
- Restasis294 claims
- Lumigan289 claims
- Brimonidine Tartrate178 claims
- Cyclosporine172 claims
- Timolol Maleate157 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.
Industry payments in 2024: $309.90
13 payments; by number, the most common kind was food and beverage; the largest payer was Oyster Point Pharma, Inc. The 34,453 providers of this specialty with any payment received $769.99 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
- Einstein Practice Plan IncElkins Park, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher Michael Brennan among 2,640 optometrist records in Pennsylvania
Christopher Michael Brennan, OD is one of 2,640 optometrist records with a practice address in Pennsylvania. 72% 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 14% of them.
- NPI issued2006 · 14% of these records are older, 48% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2006 · median 2004 among the 1,588 with a school on file
- Record last updated2010 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Pennsylvania
There are 2,640 optometrist records in Pennsylvania.
All 2,640 in Pennsylvania → Every provider in Philadelphia → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Sarah Appel, ODPhiladelphia, PA 191411760499834
- De Gaulle Chigbu, ODPhiladelphia, PA 191411730197518
- Connie Chronister, ODPhiladelphia, PA 191411992713762
- Stanley Hatch, ODPhiladelphia, PA 191411720077902
- Stephanie Holt, O.D.Philadelphia, PA 191411366450157
- Helene Kaiser, ODPhiladelphia, PA 191411972511624
- Kelly Malloy, ODPhiladelphia, PA 191411598773384
- Shital ManiPhiladelphia, PA 191411427033406
Common questions
What is Christopher Michael Brennan, OD's NPI number?
Christopher Michael Brennan, OD's National Provider Identifier (NPI) is 1801806625, issued on Aug 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Michael Brennan, OD located?
The NPPES record lists a practice address at 5401 Old York RD, Philadelphia, PA, 19141. Phone: (215) 456-7150. Providers update this record themselves, so call before visiting.
How can I verify Christopher Michael Brennan, OD's license?
NPPES lists Pennsylvania license number OEG001784, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Christopher Michael Brennan, OD prescribe under Medicare Part D?
In 2024, Christopher Michael Brennan, OD had 2,690 Medicare Part D claims for 595 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
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.