Caroly Lucy Guillen Aguirre, MD
Internal Medicine Physician · Waldorf, MD
Caroly Lucy Guillen Aguirre, MD is an internal medicine physician with a practice address in Waldorf, Maryland, and NPI 1104566553, issued on Mar 31, 2022. Check the license (Maryland D0103670, as entered in NPPES) on the Maryland Board of Physicians; the Medicare figures below come from public CMS files.
- Name
- Caroly Lucy Guillen Aguirre
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- D0103670 MD
Self-reported in NPPES; status is on the state search - Practice location
- 12107 Old Line Ctr, Waldorf, MD 20602
- Phone
- (240) 207-6450
- Enumerated
- Mar 31, 2022
- Record last updated
- Feb 13, 2026
- Medicare enrollment
- Enrolled (PECOS I20260406003279); may accept Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 3,904 in Maryland → Look up another NPI →
Verify Caroly Lucy Guillen Aguirre in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaryland Board of Physicians
Search for license D0103670Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
58 Medicare Part D claims for 19 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Caroly Lucy Guillen Aguirre among 3,904 internal medicine physician records in Maryland
Caroly Lucy Guillen Aguirre, MD is one of 3,904 internal medicine physician records with a practice address in Maryland. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 95% of them.
- NPI issued2022 · 95% of these records are older, 2% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2014 · median 2003 among the 2,445 with a school on file
- Record last updated2026 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Maryland practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
29 internal medicine physician records list a practice address in Waldorf
They are 29 of the 1,272 NPPES records with a practice address in Waldorf, and 3,904 internal medicine physician records in Maryland.
All 3,904 in Maryland → Every provider in Waldorf → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Edith Aniedobe, MDWaldorf, MD 206021467641183
- Zafar Ansari, MDWaldorf, MD 206021023125218
- Richard Cook, M.D.Waldorf, MD 206021811970056
- Annette Gonsalves, MDWaldorf, MD 206021306910716
- Annick Hebou, MDWaldorf, MD 206021629235759
- Nirmaladevi Jayanthan, MDWaldorf, MD 206021134297450
- Gowri Kularatna, M.D.Waldorf, MD 206021861682957
- Michael Leatherwood, MDWaldorf, MD 206021497747349
Common questions
What is Caroly Lucy Guillen Aguirre, MD's NPI number?
Caroly Lucy Guillen Aguirre, MD's National Provider Identifier (NPI) is 1104566553, issued on Mar 31, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Caroly Lucy Guillen Aguirre, MD located?
The NPPES record lists a practice address at 12107 Old Line Ctr, Waldorf, MD, 20602. Phone: (240) 207-6450. Providers update this record themselves, so call before visiting.
How can I verify Caroly Lucy Guillen Aguirre, MD's license?
NPPES lists Maryland license number D0103670, as entered by the provider. Search the Maryland Board of Physicians at https://www.mbp.state.md.us/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Caroly Lucy Guillen Aguirre, MD prescribe under Medicare Part D?
In 2024, Caroly Lucy Guillen Aguirre, MD had 58 Medicare Part D claims for 19 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.