Milciades Mercedes Maldonado, MD
Internal Medicine Physician · Guaynabo, PR
Milciades Mercedes Maldonado, MD is an internal medicine physician with a practice address in Guaynabo, Puerto Rico, and NPI 1366435000, issued on Aug 29, 2005. Check the license (Puerto Rico 16910, as entered in NPPES) with the Puerto Rico board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Milciades Mercedes Maldonado
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 16910 PR
Self-reported in NPPES; status is on the state search - Practice location
- 140 Ave Las Cumbres, Guaynabo, PR 00969
- Phone
- (787) 360-8641
- Enumerated
- Aug 29, 2005
- Record last updated
- Jul 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (787) 708-7788
- Medicare enrollment
- Enrolled (PECOS I20100712000620); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 1,146 in Puerto Rico → Look up another NPI →
Also registered at 140 Ave Las Cumbres
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Gabriela D'Atri Bosch, MDGeneral Practice Physician1255092615
- Nayda Garcia, RNRegistered Nurse1427329903
- Liliana Miranda, M.D.Psychiatry Physician1598828352
- Darice Orobitg, PH.D.Psychologist1043270960
Verify Milciades Mercedes Maldonado in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Puerto Rico board licenses this profession
Search for license 16910Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6.1 times the Medicare Part D claims of the average internal medicine physician in 2024
19,287 Medicare Part D claims for 856 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Amlodipine Besylate1,052 claims
- Gabapentin998 claims
- Famotidine975 claims
- Atorvastatin Calcium936 claims
- Synthroid923 claims
- Losartan Potassium583 claims
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.
Industry payments in 2024: $411.67
15 payments; by number, the most common kind was food and beverage; the largest payer was Boehringer Ingelheim Pharmaceuticals, Inc. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Milciades Mercedes Maldonado among 1,146 internal medicine physician records in Puerto Rico
Milciades Mercedes Maldonado, MD is one of 1,146 internal medicine physician records with a practice address in Puerto Rico. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 87% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 52% of these records are
- Graduated2002 · median 1996 among the 595 with a school on file
- Record last updated2021 · 55% 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 Puerto Rico practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
28 internal medicine physician records list a practice address in Guaynabo
They are 28 of the 2,143 NPPES records with a practice address in Guaynabo, and 1,146 internal medicine physician records in Puerto Rico.
All 1,146 in Puerto Rico → Every provider in Guaynabo → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Elba Betancourt Velez, M.D.Guaynabo, PR 009691932361409
- Rolando Blanco-Cuadra, M.D.Guaynabo, PR 009691881626182
- Jose Caldera Nieves, MDGuaynabo, PR 009691083784805
- Litza Camunas, MDGuaynabo, PR 009691619070570
- Zhahedia Fort, MDBayamon, PR 009691447228499
- Juan Lebron-Miro, M . D.Guaynabo, PR 009691902034093
- Maria Lopez, M.D.Guaynabo, PR 009691487678264
- Johanna Martinez, M.D.Guaynabo, PR 009691033105580
Common questions
What is Milciades Mercedes Maldonado, MD's NPI number?
Milciades Mercedes Maldonado, MD's National Provider Identifier (NPI) is 1366435000, issued on Aug 29, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Milciades Mercedes Maldonado, MD located?
The NPPES record lists a practice address at 140 Ave Las Cumbres, Guaynabo, PR, 00969. Phone: (787) 360-8641. Providers update this record themselves, so call before visiting.
How can I verify Milciades Mercedes Maldonado, MD's license?
NPPES lists Puerto Rico license number 16910, as entered by the provider. Search the Puerto Rico board that licenses this profession; the NPPES record confirms identity only.
How much does Milciades Mercedes Maldonado, MD prescribe under Medicare Part D?
In 2024, Milciades Mercedes Maldonado, MD had 19,287 Medicare Part D claims for 856 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.