Dr. Louis Barry Malinow, MD
- Medicare services, 2024
- 3,321
- Medicare patients, 2024
- 217
- Part D claims, 2024
- 5,840
- Industry payments
- $1,262
- Affiliated sites
- 4
- Practice address
- 2700 Quarry Lake Drive, Suite 100, Baltimore, MD 21209
- Practice phone
- Call (410) 377-8900
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Greenspring Surgery Center at Quarry Lake
Surgery Center - Medicare-Certified · Baltimore, Maryland
Find Dr. Malinow'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.
Dr. Louis Barry Malinow is an internist in Baltimore, Maryland
Dr. Malinow practices at Greenspring Surgery Center at Quarry Lake in Baltimore, Maryland.
Dr. Malinow's NPI, 1225007925, was assigned on March 15, 2006. Dr. Malinow graduated from University of Maryland School of Medicine in 1994. Dr. Malinow holds Maryland license D0051896.
- NPI
- 1225007925NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6204932338
- NPI enumeration date
- March 15, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (410) 377-8900
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 58
- Medical school graduation
- 1994
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Louis Barry Malinow practices at Greenspring Surgery Center at Quarry Lake in Baltimore, Maryland
Dr. Malinow's primary practice is Greenspring Surgery Center at Quarry Lake, at 2700 Quarry Lake Drive, Suite 100, Baltimore, MD 21209. The practice phone is (410) 377-8900.
- Greenspring Surgery Center at Quarry Lake2700 Quarry Lake Drive, Suite 100, Baltimore, MD 21209Phone(410) 377-8900
Source: Dmand AI Affiliation Data
Dr. Louis Barry Malinow is affiliated with 4 sites of care and 1 medical group
Dr. Malinow's primary practice is Greenspring Surgery Center at Quarry Lake in Baltimore, Maryland. The medical group on file is Malinow Oster & Malinow PA. Dmand AI also links Dr. Malinow to 2 more home health agencies and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Louis Barry Malinow's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Malinow practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Greenspring Surgery Center at Quarry Lake | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Louis Barry Malinow is one of 3,320 internists in Maryland
Internal medicine is Dr. Malinow's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Malinow is licensed in Maryland.
Specialties and state licenses
- Internal medicine, MarylandPrimary
Internists near Dr. Malinow
Counts of internists 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
Dr. Louis Barry Malinow billed Medicare for 3,321 services in 2024
CMS data shows 3,321 Medicare services from Dr. Malinow across 9 procedure codes in 2024, for 217 Medicare patients. Medicare paid $118,096 for them. Every service was in an office.
Dr. Malinow's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 2,9402024: 2,52014%
- Office and hospital visits
- 2023: 3092024: 3224%
- Other services
- 2023: 3282024: 28713%
- Tests and treatments
- 2023: 2062024: 1927%
Dr. Malinow compared with the Maryland median for internists, 2024
- Dr. Malinow
- Maryland median
- Medicare services
- 3,321vs 6565.1 times
- Medicare patients
- 217vs 25114% below
- Part D claims
- 5,106vs 30916.5 times
Medians across 3,215 internists in Maryland with Dmand AI profiles that report each measure.
Dr. Malinow's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Malinow and other internists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Louis Barry Malinow treated 217 Medicare patients in 2024, average age 77
CMS counts 217 Medicare patients who saw Dr. Malinow in 2024. The largest group is 75 to 84, with 114 patients. 75% of them have high cholesterol, and 71% have high blood pressure. Their average risk score is 0.92, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Malinow's median patient age at 62, with 45% women.
Dr. Malinow's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Malinow's Medicare patients by sex, 2024
- Women10749%
- Men11051%
Chronic conditions among Dr. Malinow's Medicare patients, 2024
- High cholesterol75%
- High blood pressure71%
- Arthritis45%
- Diabetes29%
- Ischemic heart disease26%
- Osteoporosis26%
- Cancer24%
- Atrial fibrillation17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Malinow's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 62
Patient panel by sex, all payers
- Women45%
- Men54%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Louis Barry Malinow wrote 5,840 Medicare Part D claims in 2024
In 2024, Dr. Malinow wrote 5,840 Medicare Part D claims for 251 patients. 84% of them were for generic drugs. CMS names the drug for 5,106 of them, across 105 drugs with 11 or more claims each, at $756,872 in total drug cost. In 2023, CMS named 4,380 claims across 99 drugs.
Dr. Malinow's Part D claims by kind of drug, 2024
- Generic4,900 claims84%
- Brand-name913 claims16%
- Other27 claims0%
Dr. Malinow's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Malinow's Part D claims, 2024
- Opioids1%87 of 5,840 claims
- Antibiotics3%203 of 5,840 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4,3802024: 5,10617%
Drugs named by CMS: 105 in 2024, 99 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Louis Barry Malinow takes part in Medicare
Dr. Malinow accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Louis Barry Malinow received $1,262 in industry payments from 2016 to 2025
CMS Open Payments shows 69 general payments to Dr. Malinow from 18 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. iRhythm Technologies, Inc. paid the most, $199.
General payments to Dr. Malinow by program year, 2016 to 2025
General payments to Dr. Malinow by kind, 2016 to 2025
- Food and beverage$1,23298%
- Education$302%
Companies that paid Dr. Malinow the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Louis Barry Malinow graduated from University of Maryland School of Medicine
Dr. Malinow graduated from University of Maryland School of Medicine in 1994.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Louis Barry Malinow'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| 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 and Drug (CMS) (opens in a new tab)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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| 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 Dr. Louis Barry Malinow
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Louis Barry Malinow's NPI number?
Dr. Louis Barry Malinow's NPI number is 1225007925. It was assigned on March 15, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Louis Barry Malinow?
Dr. Louis Barry Malinow is an internist in Baltimore, Maryland. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Louis Barry Malinow practice?
Dr. Malinow practices at 2700 Quarry Lake Drive, Suite 100, Baltimore, MD 21209. Dr. Malinow's primary practice is Greenspring Surgery Center at Quarry Lake in Baltimore, Maryland. Dmand AI also links Dr. Malinow to 2 home health agencies and 1 group practice or clinic.
What is Dr. Louis Barry Malinow's office phone number?
The practice phone on file for Dr. Malinow is (410) 377-8900.
What is Dr. Louis Barry Malinow's medical license number?
Dr. Malinow holds Maryland license D0051896.
What medical group is Dr. Louis Barry Malinow part of?
Dr. Malinow is linked to Malinow Oster & Malinow PA.
Does Dr. Louis Barry Malinow accept Medicare?
Yes. CMS data shows Dr. Malinow billed Medicare for 3,321 services in 2024, and Dr. Malinow accepts Medicare assignment.
How many Medicare patients does Dr. Louis Barry Malinow see?
CMS counts 217 Medicare patients who saw Dr. Malinow in 2024, with an average age of 77.
What services does Dr. Louis Barry Malinow bill to Medicare?
In 2024, Dr. Malinow's most billed Medicare services were injected or infused drug (J0897), care management and other visits (99497) and medicare service (G0439).
Where did Dr. Louis Barry Malinow go to medical school?
Dr. Malinow graduated from University of Maryland School of Medicine in 1994.
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What drugs does Dr. Louis Barry Malinow prescribe most?
In 2024 Medicare Part D data, Dr. Malinow's most prescribed drugs by claims were Rosuvastatin Calcium, Ezetimibe and Amlodipine Besylate.
Has Dr. Louis Barry Malinow received payments from drug or device companies?
CMS Open Payments shows $1,262 in general payments to Dr. Malinow from 18 companies from 2016 to 2025. The largest total came from iRhythm Technologies, Inc.
How long has Dr. Louis Barry Malinow been practicing?
Dr. Malinow graduated from medical school in 1994, 32 years ago.
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