Dr. Colleen Elizabeth Holley, MD
- Medicare services, 2024
- 801
- Medicare patients, 2024
- 468
- Part D claims, 2024
- 196
- Publications
- 1
- Hospital affiliations
- 1
- Practice address
- 301 Hospital Drive, Glen Burnie, MD 21061
- Practice phone
- Call (410) 595-1967
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Find Dr. Holley's professional email, personal email and mobile number
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Dr. Colleen Elizabeth Holley is an emergency medicine physician in Glen Burnie, Maryland
Dr. Holley practices at University of Maryland Baltimore Washington Medical Center in Glen Burnie, Maryland, part of University of Maryland Medical System.
Dr. Holley's NPI, 1093014524, was assigned on March 23, 2011. Dr. Holley graduated from Virginia Commonwealth University, School of Medicine in 2011. Dr. Holley holds Maryland license D77429.
- NPI
- 1093014524NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6406072818
- NPI enumeration date
- March 23, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (410) 595-1967
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Colleen Elizabeth Holley practices at University of Maryland Baltimore Washington Medical Center in Glen Burnie, Maryland
Dr. Holley's primary practice is University of Maryland Baltimore Washington Medical Center, at 301 Hospital Drive, Glen Burnie, MD 21061 in Anne Arundel County. The practice phone is (410) 595-1967.
- University of Maryland Baltimore Washington Medical Center301 Hospital Drive, Glen Burnie, MD 21061 · Anne Arundel CountyPhone(410) 595-1967
Source: Dmand AI Affiliation Data
Dr. Colleen Elizabeth Holley is affiliated with 1 site of care and 3 medical groups
Dr. Holley's primary practice is University of Maryland Baltimore Washington Medical Center in Glen Burnie, Maryland, part of University of Maryland Medical System. The medical group on file is Baltimore Washington Emergency Physicians (BWEP). Dmand AI also links Dr. Holley to 2 more medical groups, 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. Colleen Elizabeth Holley's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Holley practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University of Maryland Baltimore Washington Medical Center | Available with a free account |
| +2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Colleen Elizabeth Holley is one of 1,057 emergency medicine physicians in Maryland
Emergency medicine is Dr. Holley's primary specialty in the NPI Registry, under taxonomy code 207P00000X. Dr. Holley is licensed in Maryland.
Specialties and state licenses
- Emergency medicine, MarylandPrimary
Emergency medicine physicians near Dr. Holley
Counts of emergency medicine physicians 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. Colleen Elizabeth Holley billed Medicare for 801 services in 2024
CMS data shows 801 Medicare services from Dr. Holley across 6 procedure codes in 2024, for 468 Medicare patients. Medicare paid $70,588 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Holley's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 5622024: 46817%
- Tests and treatments
- 2023: 3162024: 3141%
- Imaging
- 2023: 352024: 1946%
Dr. Holley compared with the Maryland median for emergency medicine physicians, 2024
- Dr. Holley
- Maryland median
- Medicare services
- 801vs 3002.7 times
- Medicare patients
- 468vs 29260% above
- Part D claims
- 55vs 4425% above
Medians across 1,040 emergency medicine physicians in Maryland with Dmand AI profiles that report each measure.
Dr. Holley'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. Holley and other emergency medicine physicians in Maryland.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Colleen Elizabeth Holley treated 468 Medicare patients in 2024, average age 74
CMS counts 468 Medicare patients who saw Dr. Holley in 2024. The largest group is 75 to 84, with 159 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% are also on Medicaid. Their average risk score is 2.25, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Holley's median patient age at 49, with 56% women.
Dr. Holley's Medicare patients by age, 2024
Dr. Holley's Medicare patients by sex, 2024
- Women27358%
- Men19542%
Chronic conditions among Dr. Holley's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis58%
- Ischemic heart disease49%
- Diabetes47%
- Mood disorders47%
- Chronic kidney disease44%
- Anxiety43%
Share of Medicare patients with each condition. A patient can have several.
Dr. Holley's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 49
Patient panel by sex, all payers
- Women56%
- Men43%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Colleen Elizabeth Holley wrote 196 Medicare Part D claims in 2024
In 2024, Dr. Holley wrote 196 Medicare Part D claims for 120 patients. 93% of them were for generic drugs. CMS names the drug for 55 of them, across 4 drugs with 11 or more claims each, at $385 in total drug cost. In 2023, CMS named 55 claims across 4 drugs.
Dr. Holley's Part D claims by kind of drug, 2024
- Generic183 claims93%
- Brand-name and other13 claims7%
Dr. Holley'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. Holley's Part D claims, 2024
- Opioids11%22 of 196 claims
- Antibiotics17%33 of 196 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: 552024: 55No change
Drugs named by CMS: 4 in 2024, 4 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. Colleen Elizabeth Holley takes part in Medicare
Dr. Holley 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. Colleen Elizabeth Holley has 1 publication on record
Dmand AI links 1 paper to Dr. Holley in 2014. Dr. Holley's most frequent co-author is Heather Marie Mezzadra, MD.
Dr. Holley's most frequent co-authors
Recent publications by Dr. Holley
See who Dr. Holley researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Holley works with, so you can find a warm path to the right emergency medicine physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Colleen Elizabeth Holley graduated from Virginia Commonwealth University, School of Medicine
Dr. Holley graduated from Virginia Commonwealth University, School of Medicine in 2011.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Colleen Elizabeth Holley'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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Colleen Elizabeth Holley
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. Colleen Elizabeth Holley's NPI number?
Dr. Colleen Elizabeth Holley's NPI number is 1093014524. It was assigned on March 23, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Colleen Elizabeth Holley?
Dr. Colleen Elizabeth Holley is an emergency medicine physician in Glen Burnie, Maryland. The primary specialty in the NPI Registry is Emergency Medicine Physician (taxonomy code 207P00000X).
Where does Dr. Colleen Elizabeth Holley practice?
Dr. Holley practices at 301 Hospital Drive, Glen Burnie, MD 21061. Dr. Holley's primary practice is University of Maryland Baltimore Washington Medical Center in Glen Burnie, Maryland, part of University of Maryland Medical System. Dmand AI also links Dr. Holley to 2 medical groups.
What is Dr. Colleen Elizabeth Holley's office phone number?
The practice phone on file for Dr. Holley is (410) 595-1967.
What is Dr. Colleen Elizabeth Holley's medical license number?
Dr. Holley holds Maryland license D77429.
Which hospitals is Dr. Colleen Elizabeth Holley affiliated with?
Dr. Holley practices at University of Maryland Baltimore Washington Medical Center in Glen Burnie, Maryland.
What medical group is Dr. Colleen Elizabeth Holley part of?
Dr. Holley is linked to Baltimore Washington Emergency Physicians (BWEP). Dmand AI links Dr. Holley to 2 more medical groups.
Does Dr. Colleen Elizabeth Holley accept Medicare?
Yes. CMS data shows Dr. Holley billed Medicare for 801 services in 2024, and Dr. Holley accepts Medicare assignment.
How many Medicare patients does Dr. Colleen Elizabeth Holley see?
CMS counts 468 Medicare patients who saw Dr. Holley in 2024, with an average age of 74.
What services does Dr. Colleen Elizabeth Holley bill to Medicare?
In 2024, Dr. Holley's most billed Medicare services were heart test or procedure (93010), emergency department visit (99285) and critical care (99291).
Show 5 more questionsShow fewer questions
Where did Dr. Colleen Elizabeth Holley go to medical school?
Dr. Holley graduated from Virginia Commonwealth University, School of Medicine in 2011.
What drugs does Dr. Colleen Elizabeth Holley prescribe most?
In 2024 Medicare Part D data, Dr. Holley's most prescribed drugs by claims were Ondansetron ODT, Hydrocodone-Acetaminophen and Mirtazapine.
How long has Dr. Colleen Elizabeth Holley been practicing?
Dr. Holley graduated from medical school in 2011, 15 years ago.
Does Dr. Colleen Elizabeth Holley do research?
Dmand AI links 1 publication to Dr. Holley.
Who does Dr. Colleen Elizabeth Holley publish with?
Dr. Holley's most frequent co-authors are Heather Marie Mezzadra, MD (1 shared paper).
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