Dr. Alysha Guillermina Colon, MD
- Medicare services, 2024
- 211
- Medicare patients, 2024
- 79
- Part D claims, 2024
- 111
- Publications
- 8
- Industry payments
- $6,395
- Practice address
- 4660 Kenmore Ave, Alexandria, VA 22304
- Practice phone
- Call (703) 698-8960
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Gastroenterology Associates of Northern Virginia, LLC
Alexandria, Virginia
Find Dr. Colon's professional email, personal email and mobile number
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Dr. Alysha Guillermina Colon is a dermatologist in Alexandria, Virginia
Dr. Colon practices at Gastroenterology Associates of Northern Virginia, LLC in Alexandria, Virginia.
Dr. Colon's NPI, 1003444365, was assigned on March 31, 2020. Dr. Colon graduated from University of Florida College of Medicine in 2020. Dr. Colon holds Virginia license 0101282698.
- NPI
- 1003444365NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0648717108
- NPI enumeration date
- March 31, 2020
- NPI status
- Active
- Practice phone
- (703) 698-8960
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 32
- Medical school graduation
- 2020
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Practice Data
Dr. Alysha Guillermina Colon practices at Gastroenterology Associates of Northern Virginia, LLC in Alexandria, Virginia
Dr. Colon's primary practice is Gastroenterology Associates of Northern Virginia, LLC, at 4660 Kenmore Ave, Alexandria, VA 22304 in Alexandria City. The practice phone is (703) 698-8960.
- Gastroenterology Associates of Northern Virginia, LLC4660 Kenmore Ave, Alexandria, VA 22304 · Alexandria CityPhone(703) 698-8960
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Alysha Guillermina Colon is affiliated with 3 sites of care and 4 medical groups
Dr. Colon's primary practice is Gastroenterology Associates of Northern Virginia, LLC in Alexandria, Virginia. The medical group on file is Advanced Dermatology and Cosmetic Surgery. Dmand AI also links Dr. Colon to 3 more medical groups and 2 group practices and clinics, 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 Dr. Alysha Guillermina Colon's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Colon practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Gastroenterology Associates of Northern Virginia, LLC | Available with a free account |
| +2 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Alysha Guillermina Colon is one of 338 dermatologists in Virginia
Dermatology is Dr. Colon's primary specialty in the NPI Registry, under taxonomy code 207N00000X. Dr. Colon is licensed in Virginia.
Specialties and state licenses
- Dermatology, VirginiaPrimary
Dermatologists near Dr. Colon
Counts of dermatologists 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. Alysha Guillermina Colon billed Medicare for 211 services in 2024
CMS data shows 211 Medicare services from Dr. Colon across 8 procedure codes in 2024, for 79 Medicare patients. Medicare paid $12,444 for them. Every service was in an office.
Dr. Colon's Medicare services by type, 2024
- Surgery135
- Office and hospital visits76
Dr. Colon compared with the Virginia median for dermatologists, 2024
- Dr. Colon
- Virginia median
- Medicare services
- 211vs 2,67192% below
- Medicare patients
- 79vs 67888% below
- Part D claims
- 38vs 34389% below
Medians across 337 dermatologists in Virginia with Dmand AI profiles that report each measure.
Dr. Colon'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Alysha Guillermina Colon treated 79 Medicare patients in 2024, average age 73
CMS counts 79 Medicare patients who saw Dr. Colon in 2024. The largest group is 65 to 74, with 33 patients. 65% of them have high cholesterol, and 59% have high blood pressure. 16% are also on Medicaid. Their average risk score is 0.83, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Colon's median patient age at 37, with 70% women.
Dr. Colon's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Colon's Medicare patients by sex, 2024
- Women5165%
- Men2835%
Chronic conditions among Dr. Colon's Medicare patients, 2024
- High cholesterol65%
- High blood pressure59%
- Arthritis38%
- Mood disorders23%
- Osteoporosis22%
- Depression18%
- Chronic kidney disease16%
- Diabetes16%
Share of Medicare patients with each condition. A patient can have several.
Dr. Colon's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 37
Patient panel by sex, all payers
- Women70%
- Men29%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Alysha Guillermina Colon wrote 111 Medicare Part D claims in 2024
In 2024, Dr. Colon wrote 111 Medicare Part D claims for 61 patients. 96% of them were for generic drugs. CMS names the drug for 38 of them, across 2 drugs with 11 or more claims each, at $899 in total drug cost. In 2022, CMS named 12 claims across 1 drug.
Dr. Colon's Part D claims by kind of drug, 2024
- Generic107 claims96%
- Brand-name and other4 claims4%
Dr. Colon'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. Colon's Part D claims, 2024
- Antibiotics14%16 of 111 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, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 122024: 38217%
Drugs named by CMS: 2 in 2024, 1 in 2022.
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
Dr. Alysha Guillermina Colon ranks in the 79th percentile for removal of skin lesions in Medicare
CMS counts 207 procedures of removal of skin lesions by Dr. Colon, more than 79% of the clinicians it reports for that procedure.
Where Dr. Colon ranks in Medicare procedure volume
- Removal of skin lesions
- 79th percentile207 procedures
- Skin biopsy
- 74th percentile87 procedures
- Removal or shaving of skin growth
- 71st percentile21 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Source: Doctors and Clinicians Utilization Data (CMS)
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Dr. Alysha Guillermina Colon has 8 publications on record
Dmand AI links 8 papers to Dr. Colon, published from 2018 to 2021. 2019 was the busiest year, with 2. Dr. Colon's most frequent co-authors are Kiran Motaparthi, MD, Ryan Gillihan, MD and Samuel Yoffe Ash, MD.
Dr. Colon's papers by year, 2018 to 2021
Dr. Colon's most frequent co-authors
- Kiran Motaparthi, MD4 shared papers
- Ryan Gillihan, MD3 shared papers
- Samuel Yoffe Ash, MD2 shared papers
Recent publications by Dr. Colon
Clin Dermatol
See who Dr. Colon researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Colon works with, so you can find a warm path to the right dermatologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Alysha Guillermina Colon received $6,395 in industry payments from 2024 to 2025
CMS Open Payments shows 208 general payments to Dr. Colon from 20 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 98% of the total. LEO Pharma Inc. paid the most, $910.
General payments to Dr. Colon by program year, 2024 to 2025
General payments to Dr. Colon by kind, 2024 to 2025
- Food and beverage$6,29598%
- Education$1002%
Companies that paid Dr. Colon the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Alysha Guillermina Colon graduated from University of Florida College of Medicine
Dr. Colon graduated from University of Florida College of Medicine in 2020.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Alysha Guillermina Colon'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 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 Utilization Data (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 |
| 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. Alysha Guillermina Colon
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. Alysha Guillermina Colon's NPI number?
Dr. Alysha Guillermina Colon's NPI number is 1003444365. It was assigned on March 31, 2020, and it is active in the NPI Registry.
What kind of doctor is Dr. Alysha Guillermina Colon?
Dr. Alysha Guillermina Colon is a dermatologist in Alexandria, Virginia. The primary specialty in the NPI Registry is Dermatology Physician (taxonomy code 207N00000X).
Where does Dr. Alysha Guillermina Colon practice?
Dr. Colon practices at 4660 Kenmore Ave, Alexandria, VA 22304. Dr. Colon's primary practice is Gastroenterology Associates of Northern Virginia, LLC in Alexandria, Virginia. Dmand AI also links Dr. Colon to 3 medical groups and 2 group practices and clinics.
What is Dr. Alysha Guillermina Colon's office phone number?
The practice phone on file for Dr. Colon is (703) 698-8960.
What is Dr. Alysha Guillermina Colon's medical license number?
Dr. Colon holds Virginia license 0101282698.
What medical group is Dr. Alysha Guillermina Colon part of?
Dr. Colon is linked to Advanced Dermatology and Cosmetic Surgery. Dmand AI links Dr. Colon to 3 more medical groups.
Does Dr. Alysha Guillermina Colon accept Medicare?
Yes. CMS data shows Dr. Colon billed Medicare for 211 services in 2024.
How many Medicare patients does Dr. Alysha Guillermina Colon see?
CMS counts 79 Medicare patients who saw Dr. Colon in 2024, with an average age of 73.
What services does Dr. Alysha Guillermina Colon bill to Medicare?
In 2024, Dr. Colon's most billed Medicare services were surgery: skin and soft tissue (17003), office visit, established patient (99213) and surgery: skin and soft tissue (17000).
Where did Dr. Alysha Guillermina Colon go to medical school?
Dr. Colon graduated from University of Florida College of Medicine in 2020.
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What drugs does Dr. Alysha Guillermina Colon prescribe most?
In 2024 Medicare Part D data, Dr. Colon's most prescribed drugs by claims were Triamcinolone Acetonide and Clobetasol Propionate.
Has Dr. Alysha Guillermina Colon received payments from drug or device companies?
CMS Open Payments shows $6,395 in general payments to Dr. Colon from 20 companies from 2024 to 2025. The largest total came from LEO Pharma Inc.
How long has Dr. Alysha Guillermina Colon been practicing?
Dr. Colon graduated from medical school in 2020, 6 years ago.
Does Dr. Alysha Guillermina Colon do research?
Dmand AI links 8 publications to Dr. Colon, published from 2018 to 2021.
Who does Dr. Alysha Guillermina Colon publish with?
Dr. Colon's most frequent co-authors are Kiran Motaparthi, MD (4 shared papers), Ryan Gillihan, MD (3 shared papers) and Samuel Yoffe Ash, MD (2 shared papers).
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