David Steven Blum, O.D.
Optometrist · Baltimore, MD
David Steven Blum, O.D. is an optometrist with a practice address in Baltimore, Maryland, and NPI 1679520928, issued on May 30, 2006. Check the license (Maryland TAO857, as entered in NPPES) with the Maryland board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- David Steven Blum
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License number
- TAO857 MD
Self-reported in NPPES; status is on the state search - Practice location
- 4425 Fitch Avenue, Baltimore, MD 21236
- Phone
- (410) 682-3000
- Enumerated
- May 30, 2006
- Record last updated
- May 4, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (410) 682-6890
- Medicaid ID
- 382-00-8400 MD
- Medicare enrollment
- Enrolled (PECOS I20120323000033); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest optometrist records → All 924 in Maryland → Look up another NPI →
Verify David Steven Blum in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Maryland board licenses this profession
Search for license TAO857Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% more Medicare Part D claims than the average optometrist in 2024
432 Medicare Part D claims for 127 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 30% of claims.
Most prescribed
- Latanoprost147 claims
- Tobramycin-Dexamethasone63 claims
- Dorzolamide-Timolol38 claims
- Neomycin-Polymyxin-Dexameth27 claims
- Dorzolamide Hcl24 claims
- Vyzulta22 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: $138.02
2 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas 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
- Drs. Blum And Bruck, O.D. P.A.Manchester, MD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Steven Blum among 924 optometrist records in Maryland
David Steven Blum, O.D. is one of 924 optometrist records with a practice address in Maryland. 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 7% of them.
- NPI issued2006 · 7% of these records are older, 56% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 56% of these records are
- Graduated1983 · median 2005 among the 517 with a school on file
- Record last updated2021 · 63% 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 Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Maryland
There are 924 optometrist records in Maryland.
All 924 in Maryland → Every provider in Baltimore → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Karen Dunlap, O.D.Nottingham, MD 212361396900619
- Timothy Kirkman, ODBaltimore, MD 212361063526218
- Richard Levin, O.D.Nottingham, MD 212361376584375
- Howard Levin, O.D.Nottingham, MD 212361366473548
- Shana Levy, ODBaltimore, MD 212361114086436
- Iva Nosi, O.D.Nottingham, MD 212361275763500
- Mary Ellen Padusi, O.D.Nottingham, MD 212361144310418
- Arnold Sapperstein, ODBaltimore, MD 212361740206846
Common questions
What is David Steven Blum, O.D.'s NPI number?
David Steven Blum, O.D.'s National Provider Identifier (NPI) is 1679520928, issued on May 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Steven Blum, O.D. located?
The NPPES record lists a practice address at 4425 Fitch Avenue, Baltimore, MD, 21236. Phone: (410) 682-3000. Providers update this record themselves, so call before visiting.
How can I verify David Steven Blum, O.D.'s license?
NPPES lists Maryland license number TAO857, as entered by the provider. Search the Maryland board that licenses this profession; the NPPES record confirms identity only.
How much does David Steven Blum, O.D. prescribe under Medicare Part D?
In 2024, David Steven Blum, O.D. had 432 Medicare Part D claims for 127 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.