Marcos Ramiro Lamas, M.D.
Endocrinology, Diabetes & Metabolism Physician · Danbury, CT
Marcos Ramiro Lamas, M.D. is an endocrinology, diabetes & metabolism physician with a practice address in Danbury, Connecticut, and NPI 1154618700, issued on Jul 5, 2011. Check the license (Connecticut 55616, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Marcos Ramiro Lamas
- Credential
- M.D.
- Primary taxonomy
- Endocrinology, Diabetes & Metabolism Physician 207RE0101X
- License number
- 55616 CT
Self-reported in NPPES; status is on the state search - Practice location
- 25 Germantown RD, Danbury, CT 06810
- Phone
- (203) 794-5620
- Enumerated
- Jul 5, 2011
- Record last updated
- Jul 21, 2022
- Fax
- (203) 794-5642
- Medicare enrollment
- Enrolled (PECOS I20200709001656); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest endocrinology, diabetes & metabolism physician records → All 214 in Connecticut → Look up another NPI →
Also registered at 25 Germantown RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Adey Abebe, APRNFamily Nurse Practitioner1558914648
- Umar Ahmad, D.O.Endocrinology, Diabetes & Metabolism Physician1336589746
- Teresa Cichosz, AGNP-C, CDCESAdult Health Nurse Practitioner1245727437
- Marie Elena Cordisco, APRNFamily Nurse Practitioner1265617310
- Lawrence Fisher, M.D.Specialist1265427751
- Amanda FuscoNurse Practitioner1689025306
Verify Marcos Ramiro Lamas in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 55616Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
51% fewer Medicare Part D claims than the average endocrinology, diabetes & metabolism physician in 2024
1,282 Medicare Part D claims for 250 beneficiaries, against an average of 2,630 among the 8,223 providers of this specialty who prescribed in Part D. Brand-name drugs were 54% of claims.
Most prescribed
- Levothyroxine Sodium237 claims
- Jardiance94 claims
- Ozempic77 claims
- Hydrocortisone52 claims
- Alendronate Sodium49 claims
- Lantus Solostar45 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 78.2 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Florida Clinical Practice Association IncGainesville, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marcos Ramiro Lamas among 214 endocrinology, diabetes & metabolism physician records in Connecticut
Marcos Ramiro Lamas, M.D. is one of 214 endocrinology, diabetes & metabolism physician records with a practice address in Connecticut. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 67% of them.
- NPI issued2011 · 67% of these records are older, 30% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2006 · median 2004 among the 145 with a school on file
- Record last updated2022 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RE0101X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Endocrinology, Diabetes & Metabolism Physician providers in Connecticut
There are 214 endocrinology, diabetes & metabolism physician records in Connecticut.
All 214 in Connecticut → Every provider in Danbury → Endocrinology, Diabetes & Metabolism Physician nationwide →
The 8 endocrinology, diabetes & metabolism physician records with the nearest ZIP codes
- Umar Ahmad, D.O.Danbury, CT 068101336589746
- Kristen Jackson, MDDanbury, CT 068101255727558
- Karen McCloskey, M.D.Danbury, CT 068101972982205
- Lydia McGuigan, D.O.Danbury, CT 068101326334517
- Natalie Mora, MDDanbury, CT 068101841606498
- Rea Nagy, M.D.Danbury, CT 068101962820662
- Herbert Prawius, M.D.Danbury, CT 068101740221571
- Robert Savino, M.D.Danbury, CT 068101700807245
Common questions
What is Marcos Ramiro Lamas, M.D.'s NPI number?
Marcos Ramiro Lamas, M.D.'s National Provider Identifier (NPI) is 1154618700, issued on Jul 5, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Marcos Ramiro Lamas, M.D. located?
The NPPES record lists a practice address at 25 Germantown RD, Danbury, CT, 06810. Phone: (203) 794-5620. Providers update this record themselves, so call before visiting.
How can I verify Marcos Ramiro Lamas, M.D.'s license?
NPPES lists Connecticut license number 55616, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marcos Ramiro Lamas, M.D. prescribe under Medicare Part D?
In 2024, Marcos Ramiro Lamas, M.D. had 1,282 Medicare Part D claims for 250 beneficiaries; the average among endocrinology, diabetes & metabolism physician prescribers was 2,630. Part D covers Medicare prescriptions only.
What is Marcos Ramiro Lamas, M.D.'s MIPS final score?
The 2023 MIPS final score is 78.2 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.