Dr. Bonnie Ellen Cohen, MD

  • Rockville, MD
  • Internist
NPI1104986876PAC ID3072706589
Part D claims, 2024
2,167
Hospital affiliations
1
Medical group
1
State license
1
Year NPI issued
2006
Practice address
6111 Executive Blvd, Rockville, MD 20852
Practice phone
Call (301) 816-2424
Professional email
Get professional email
Personal email
Get personal email
Mobile number
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Social profiles

Primary practice

Kaiser Permanente Lutherville-Timonium Medical Center

Rockville, Maryland

See all 5 affiliations

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Dr. Bonnie Ellen Cohen is an internist in Rockville, Maryland

Dr. Cohen practices at Kaiser Permanente Lutherville-Timonium Medical Center in Rockville, Maryland.

Dr. Cohen's NPI, 1104986876, was assigned on December 11, 2006. Dr. Cohen holds Maryland license D41797.

NPI and contact details
Medicare PAC ID
3072706589
NPI enumeration date
December 11, 2006
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(301) 816-2424
Professional email
Get email
Personal email
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Mobile number
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Sex
Female
Estimated age
64
Medical school graduation
1988

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Bonnie Ellen Cohen practices at Kaiser Permanente Lutherville-Timonium Medical Center in Rockville, Maryland

Dr. Cohen's primary practice is Kaiser Permanente Lutherville-Timonium Medical Center, at 6111 Executive Blvd, Rockville, MD 20852 in Montgomery County. The practice phone is (301) 816-2424.

  • Kaiser Permanente Lutherville-Timonium Medical Center
    6111 Executive Blvd, Rockville, MD 20852 · Montgomery CountyPhone(301) 816-2424

Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data

Dr. Bonnie Ellen Cohen is affiliated with 4 sites of care and 1 medical group

Dr. Cohen's primary practice is Kaiser Permanente Lutherville-Timonium Medical Center in Rockville, Maryland. Dr. Cohen is also affiliated with Greater Baltimore Medical Center. The medical group on file is Mid-Atlantic Permanente Medical Group. Dmand AI also links Dr. Cohen to 2 more skilled nursing facilities, each named with a free account.

See all 5 affiliations for Dr. Cohen

Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Bonnie Ellen Cohen's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Cohen practices, 3 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Kaiser Permanente Lutherville-Timonium Medical CenterAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Bonnie Ellen Cohen is one of 3,320 internists in Maryland

Internal medicine is Dr. Cohen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Cohen is licensed in Maryland.

Specialties and state licenses

  • Internal medicine, MarylandPrimaryLicense D41797 · taxonomy 207R00000X

Internists near Dr. Cohen

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. Bonnie Ellen Cohen's patients have a median age of 69

Across all payers, Dmand AI patient panel data puts Dr. Cohen's median patient age at 69, with 53% women.

Dr. Cohen's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 69

Patient panel by sex, all payers

  • Women53%
  • Men47%

Source: Dmand AI Patient Panel Data

Dr. Bonnie Ellen Cohen wrote 2,167 Medicare Part D claims in 2024

In 2024, Dr. Cohen wrote 2,167 Medicare Part D claims for 163 patients. 87% of them were for generic drugs. CMS names the drug for 1,795 of them, across 52 drugs with 11 or more claims each, at $130,402 in total drug cost. In 2023, CMS named 680 claims across 31 drugs.

Part D claims, 20242,167
Drugs named by CMS52
Total drug cost$130,402
Part D patients163

Dr. Cohen's Part D claims by kind of drug, 2024

  • Generic1,886 claims87%
  • Brand-name and other281 claims13%

Dr. Cohen'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. Cohen's Part D claims, 2024

  • Opioids1%25 of 2,167 claims
  • Antibiotics2%51 of 2,167 claims
  • Antipsychotics, patients 65 and over1%26 of 2,167 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: 6802024: 1,795164%

Drugs named by CMS: 52 in 2024, 31 in 2023.

See all prescribing by Dr. Cohen

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. Bonnie Ellen Cohen takes part in Medicare

Dr. Cohen 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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Sources for Dr. Bonnie Ellen Cohen's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data
Primary practice, affiliations and health systemNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare patients and the all-payer patient panelDmand AI Patient Panel Data
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Bonnie Ellen Cohen

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. Bonnie Ellen Cohen's NPI number?

Dr. Bonnie Ellen Cohen's NPI number is 1104986876. It was assigned on December 11, 2006, and it is active in the NPI Registry.

What kind of doctor is Dr. Bonnie Ellen Cohen?

Dr. Bonnie Ellen Cohen is an internist in Rockville, Maryland. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).

Where does Dr. Bonnie Ellen Cohen practice?

Dr. Cohen practices at 6111 Executive Blvd, Rockville, MD 20852. Dr. Cohen's primary practice is Kaiser Permanente Lutherville-Timonium Medical Center in Rockville, Maryland. Dmand AI also links Dr. Cohen to 2 skilled nursing facilities.

What is Dr. Bonnie Ellen Cohen's office phone number?

The practice phone on file for Dr. Cohen is (301) 816-2424.

What is Dr. Bonnie Ellen Cohen's medical license number?

Dr. Cohen holds Maryland license D41797.

Which hospitals is Dr. Bonnie Ellen Cohen affiliated with?

Dr. Cohen is affiliated with Greater Baltimore Medical Center.

What medical group is Dr. Bonnie Ellen Cohen part of?

Dr. Cohen is linked to Mid-Atlantic Permanente Medical Group.

Does Dr. Bonnie Ellen Cohen accept Medicare?

Yes. CMS lists Dr. Cohen as accepting Medicare assignment.

What drugs does Dr. Bonnie Ellen Cohen prescribe most?

In 2024 Medicare Part D data, Dr. Cohen's most prescribed drugs by claims were Atorvastatin Calcium, Amlodipine Besylate and Eliquis.

How long has Dr. Bonnie Ellen Cohen been practicing?

Dr. Cohen graduated from medical school in 1988, 38 years ago.

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