Dr. Timothy J. Greenan, MD
- Medicare services, 2024
- 6,115
- Medicare patients, 2024
- 1,466
- MIPS score, 2024
- 75
- Industry payments
- $246
- Affiliated sites
- 4
- Practice address
- 7801 Elvaton Rd, Glen Burnie, MD 21061
- Practice phone
- Call (410) 571-0350
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Chesapeake Medical Imaging
Medical specialty practice · Glen Burnie, Maryland
Find Dr. Greenan's professional email, personal email and mobile number
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Dr. Timothy J. Greenan is a diagnostic radiologist in Glen Burnie, Maryland
Dr. Greenan practices at Chesapeake Medical Imaging in Glen Burnie, Maryland.
Dr. Greenan's NPI, 1073562088, was assigned on May 8, 2006. Dr. Greenan graduated from State University of NY Upstate Medical University in 1986. Dr. Greenan holds Maryland license D0041613.
- NPI
- 1073562088NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759287063
- NPI enumeration date
- May 8, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (410) 571-0350
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Timothy J. Greenan practices at Chesapeake Medical Imaging in Glen Burnie, Maryland
Dr. Greenan's primary practice is Chesapeake Medical Imaging, at 7801 Elvaton Rd, Glen Burnie, MD 21061. The practice phone is (410) 571-0350.
- Chesapeake Medical Imaging7801 Elvaton Rd, Glen Burnie, MD 21061Phone(410) 571-0350
Source: Dmand AI Affiliation Data
Dr. Timothy J. Greenan is affiliated with 4 sites of care and 5 medical groups
Dr. Greenan's primary practice is Chesapeake Medical Imaging in Glen Burnie, Maryland. The medical group on file is Chesapeake Medical Imaging. Dmand AI also links Dr. Greenan to 4 more medical groups and 3 group practices and clinics, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Timothy J. Greenan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Greenan practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Chesapeake Medical Imaging | Available with a free account |
| +3 more sites and 4 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Timothy J. Greenan is one of 626 diagnostic radiologists in Maryland
Diagnostic radiology is Dr. Greenan's primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dmand AI has Dr. Greenan's licenses on file in 3 states: Maryland, New York and Pennsylvania.
Specialties and state licenses
- Diagnostic radiology, MarylandPrimary
- New York license
- Specialist, Pennsylvania
Diagnostic radiologists near Dr. Greenan
Counts of diagnostic radiologists 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. Timothy J. Greenan billed Medicare for 6,115 services in 2024
CMS data shows 6,115 Medicare services from Dr. Greenan across 14 procedure codes in 2024, for 1,466 Medicare patients. Medicare paid $252,168 for them. Every service was in an office.
Dr. Greenan's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 2,8502024: 3,15411%
- Imaging
- 2023: 2,6082024: 2,96114%
Dr. Greenan compared with the Maryland median for diagnostic radiologists, 2024
- Dr. Greenan
- Maryland median
- Medicare services
- 6,115vs 5,24117% above
- Medicare patients
- 1,466vs 1,94425% below
Medians across 602 diagnostic radiologists in Maryland with Dmand AI profiles that report each measure.
Dr. Greenan'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. Greenan and other diagnostic radiologists in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Timothy J. Greenan treated 1,466 Medicare patients in 2024, average age 73
CMS counts 1,466 Medicare patients who saw Dr. Greenan in 2024. The largest group is 65 to 74, with 794 patients. 75% of them have arthritis, and 75% have high cholesterol. 7% are also on Medicaid. Their average risk score is 0.89, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Greenan's median patient age at 71, with 59% women.
Dr. Greenan's Medicare patients by age, 2024
Dr. Greenan's Medicare patients by sex, 2024
- Women88460%
- Men58240%
Chronic conditions among Dr. Greenan's Medicare patients, 2024
- Arthritis75%
- High cholesterol75%
- High blood pressure70%
- Diabetes25%
- Anxiety23%
- Ischemic heart disease22%
- Mood disorders22%
- Depression19%
Share of Medicare patients with each condition. A patient can have several.
Dr. Greenan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 71
Patient panel by sex, all payers
- Women59%
- Men39%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Timothy J. Greenan scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Greenan for performance year 2024, reported individually. Dr. Greenan accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Timothy J. Greenan received $246 in industry payments from 2017 to 2022
CMS Open Payments shows 5 general payments to Dr. Greenan from 2 drug and device companies from 2017 to 2022. Food and beverage make up the largest share, 85% of the total. GE Healthcare paid the most, $208.
General payments to Dr. Greenan by program year, 2017 to 2022
General payments to Dr. Greenan by kind, 2017 to 2022
- Food and beverage$20885%
- Entertainment$3715%
Companies that paid Dr. Greenan the most, 2017 to 2022
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Timothy J. Greenan graduated from State University of NY Upstate Medical University
Dr. Greenan graduated from State University of NY Upstate Medical University in 1986.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Timothy J. Greenan'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 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) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (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. Timothy J. Greenan
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. Timothy J. Greenan's NPI number?
Dr. Timothy J. Greenan's NPI number is 1073562088. It was assigned on May 8, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Timothy J. Greenan?
Dr. Timothy J. Greenan is a diagnostic radiologist in Glen Burnie, Maryland. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Timothy J. Greenan practice?
Dr. Greenan practices at 7801 Elvaton Rd, Glen Burnie, MD 21061. Dr. Greenan's primary practice is Chesapeake Medical Imaging in Glen Burnie, Maryland. Dmand AI also links Dr. Greenan to 4 medical groups and 3 group practices and clinics.
What is Dr. Timothy J. Greenan's office phone number?
The practice phone on file for Dr. Greenan is (410) 571-0350.
What is Dr. Timothy J. Greenan's medical license number?
Dr. Greenan holds Maryland license D0041613, one of the licenses on file in 3 states.
Which states has Dr. Timothy J. Greenan been licensed in?
Dmand AI has state licenses on file for Dr. Greenan in Maryland, New York and Pennsylvania.
What medical group is Dr. Timothy J. Greenan part of?
Dr. Greenan is linked to Chesapeake Medical Imaging. Dmand AI links Dr. Greenan to 4 more medical groups.
Does Dr. Timothy J. Greenan accept Medicare?
Yes. CMS data shows Dr. Greenan billed Medicare for 6,115 services in 2024, and Dr. Greenan accepts Medicare assignment.
What is Dr. Timothy J. Greenan's MIPS score?
Dr. Greenan's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
How many Medicare patients does Dr. Timothy J. Greenan see?
CMS counts 1,466 Medicare patients who saw Dr. Greenan in 2024, with an average age of 73.
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What services does Dr. Timothy J. Greenan bill to Medicare?
In 2024, Dr. Greenan's most billed Medicare services were medical supplies or transport (A9575), diagnostic imaging (73721) and diagnostic imaging (73221).
Where did Dr. Timothy J. Greenan go to medical school?
Dr. Greenan graduated from State University of NY Upstate Medical University in 1986.
Has Dr. Timothy J. Greenan received payments from drug or device companies?
CMS Open Payments shows $246 in general payments to Dr. Greenan from 2 companies from 2017 to 2022. The largest total came from GE Healthcare.
How long has Dr. Timothy J. Greenan been practicing?
Dr. Greenan graduated from medical school in 1986, 40 years ago.
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