David Steven Blum, OD
- Medicare patients, 2024
- 511
- Part D claims, 2024
- 432
- Industry payments
- $18
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 2963 Manchester Rd, Manchester, MD 21102
- Practice phone
- Call (410) 239-6700
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Drs. Blum & Bruck, O.D. P.A.
Manchester, Maryland
Find David Blum's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
David Steven Blum is an optometrist in Manchester, Maryland
David Blum practices at Drs. Blum & Bruck, O.D. P.A. in Manchester, Maryland.
David Blum's NPI, 1679520928, was assigned on May 30, 2006. David Blum holds Maryland license TAO857.
- NPI
- 1679520928NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7113030966
- NPI enumeration date
- May 30, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (410) 239-6700
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
David Steven Blum practices at Drs. Blum & Bruck, O.D. P.A. in Manchester, Maryland
David Blum's primary practice is Drs. Blum & Bruck, O.D. P.A., at 2963 Manchester Rd, Manchester, MD 21102 in Carroll County. The practice phone is (410) 239-6700.
- Drs. Blum & Bruck, O.D. P.A.2963 Manchester Rd, Manchester, MD 21102 · Carroll CountyPhone(410) 239-6700
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
David Steven Blum is affiliated with 2 sites of care and 1 medical group
David Blum's primary practice is Drs. Blum & Bruck, O.D. P.A. in Manchester, Maryland. Dmand AI also links David Blum to 1 group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at David Steven Blum's practice
Dmand AI tracks the electronic health record (EHR) system at each site where David Blum practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Drs. Blum & Bruck, O.D. P.A. | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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David Steven Blum is one of 562 optometrists in Maryland
Optometrist is David Blum's primary specialty in the NPI Registry, under taxonomy code 152W00000X. David Blum is licensed in Maryland.
Specialties and state licenses
- Optometrist, MarylandPrimary
Optometrists near David Blum
Counts of optometrists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
David Steven Blum treated 511 Medicare patients in 2024, average age 75
CMS counts 511 Medicare patients who saw David Blum in 2024. The largest group is 65 to 74, with 229 patients. 75% of them have high cholesterol, and 74% have high blood pressure. 6% are also on Medicaid. Their average risk score is 0.90, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts David Blum's median patient age at 70, with 66% women.
David Blum's Medicare patients by age, 2024
David Blum's Medicare patients by sex, 2024
- Women29959%
- Men21241%
Chronic conditions among David Blum's Medicare patients, 2024
- High cholesterol75%
- High blood pressure74%
- Arthritis40%
- Diabetes34%
- Ischemic heart disease26%
- Chronic kidney disease18%
- Mood disorders18%
- Atrial fibrillation16%
Share of Medicare patients with each condition. A patient can have several.
David Blum's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women66%
- Men33%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
David Steven Blum wrote 432 Medicare Part D claims in 2024
In 2024, David Blum wrote 432 Medicare Part D claims for 127 patients. 70% of them were for generic drugs.
David Blum's Part D claims by kind of drug, 2024
- Generic302 claims70%
- Brand-name130 claims30%
Drug classes CMS tracks in David Blum's Part D claims, 2024
- Antibiotics3%13 of 432 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Source: Medicare Part D Prescribers - by Provider (CMS), 2024 data
David Steven Blum ranks in the 58th percentile for cataract surgery in Medicare
David Blum accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 38 procedures of cataract surgery by David Blum, more than 58% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where David Blum ranks in Medicare procedure volume
- Cataract surgery
- 58th percentile38 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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David Steven Blum received $18 in industry payments in 2025
CMS Open Payments shows 1 general payment to David Blum from 1 drug or device company in 2025. Food and beverage make up the largest share, 100% of the total. Bausch & Lomb Americas Inc. paid the most, $18.
Companies that paid David Blum the most, 2025 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for David Steven Blum's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about David Steven Blum
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is David Steven Blum's NPI number?
David Steven Blum's NPI number is 1679520928. It was assigned on May 30, 2006, and it is active in the NPI Registry.
What does David Steven Blum specialize in?
David Steven Blum is an optometrist in Manchester, Maryland. The primary specialty in the NPI Registry is Optometrist (taxonomy code 152W00000X).
Where does David Steven Blum practice?
David Blum practices at 2963 Manchester Rd, Manchester, MD 21102. David Blum's primary practice is Drs. Blum & Bruck, O.D. P.A. in Manchester, Maryland. Dmand AI also links David Blum to 1 group practice or clinic and 1 medical group.
What is David Steven Blum's office phone number?
The practice phone on file for David Blum is (410) 239-6700.
What is David Steven Blum's medical license number?
David Blum holds Maryland license TAO857.
Does David Steven Blum accept Medicare?
Yes. CMS lists David Blum as accepting Medicare assignment.
How many Medicare patients does David Steven Blum see?
CMS counts 511 Medicare patients who saw David Blum in 2024, with an average age of 75.
Has David Steven Blum received payments from drug or device companies?
CMS Open Payments shows $18 in general payments to David Blum from 1 company from 2025 to 2025. The largest total came from Bausch & Lomb Americas Inc.
How long has David Steven Blum been practicing?
David Blum graduated from medical school in 1983, 43 years ago.
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