Mariana Zacharias Andre Chemaly, MD
Internal Medicine Physician · Lowell, MA
Mariana Zacharias Andre Chemaly, MD is an internal medicine physician with a practice address in Lowell, Massachusetts, and NPI 1811183056, issued on Sep 21, 2007. Check the license (Massachusetts 238062, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Mariana Zacharias Andre Chemaly
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 238062 MA
Self-reported in NPPES; status is on the state search - Practice location
- 45 Palmer St, Lowell, MA 01852
- Phone
- (978) 970-1607
- Enumerated
- Sep 21, 2007
- Record last updated
- Jan 18, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (978) 970-1115
- Medicare enrollment
- Enrolled (PECOS I20081030000028); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 6,825 in Massachusetts → Look up another NPI →
Also registered at 45 Palmer St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jessica Ames, NPFamily Nurse Practitioner1306147863
- Alexis Malcom, NPNurse Practitioner1376830281
- Tarina Mansur, PA-CMedical Physician Assistant1841238201
- Mary Ellen Powers, NPGerontology Nurse Practitioner1417114265
- Pauline Tsirigotis, MDInternal Medicine Physician1760417331
Verify Mariana Zacharias Andre Chemaly in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 238062Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% more Medicare Part D claims than the average internal medicine physician in 2024
5,329 Medicare Part D claims for 640 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 28 claims were for opioids.
Most prescribed
- Atorvastatin Calcium448 claims
- Amlodipine Besylate315 claims
- Lisinopril280 claims
- Simvastatin188 claims
- Levothyroxine Sodium161 claims
- Losartan Potassium154 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: $145.60
5 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US 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.
Bills Medicare through one group practice
- Mill City Medical Group LtdLowell, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mariana Zacharias Andre Chemaly among 6,825 internal medicine physician records in Massachusetts
Mariana Zacharias Andre Chemaly, MD is one of 6,825 internal medicine physician records with a practice address in Massachusetts. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 46% of them.
- NPI issued2007 · 46% of these records are older, 45% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2001 · median 2004 among the 4,103 with a school on file
- Record last updated2012 · 64% 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 Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
57 internal medicine physician records list a practice address in Lowell
They are 57 of the 2,992 NPPES records with a practice address in Lowell, and 6,825 internal medicine physician records in Massachusetts.
All 6,825 in Massachusetts → Every provider in Lowell → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Zaheer Ahmed, M.D.Lowell, MA 018521346289337
- Margaret Allard, MD MPHLowell, MA 018521528024585
- Alexandra Argasinski, M.D.Lowell, MA 018521508813395
- Peter Bradshaw, M.D.Lowell, MA 018521083770903
- Jack Chang, MDLowell, MA 018521811182041
- Shabnam Cheriyath, MDLowell, MA 018521487980116
- Herbert Kleinman, M.D.Lowell, MA 018521396791125
- Meaghan Nitka, MDLowell, MA 018521952551376
Common questions
What is Mariana Zacharias Andre Chemaly, MD's NPI number?
Mariana Zacharias Andre Chemaly, MD's National Provider Identifier (NPI) is 1811183056, issued on Sep 21, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Mariana Zacharias Andre Chemaly, MD located?
The NPPES record lists a practice address at 45 Palmer St, Lowell, MA, 01852. Phone: (978) 970-1607. Providers update this record themselves, so call before visiting.
How can I verify Mariana Zacharias Andre Chemaly, MD's license?
NPPES lists Massachusetts license number 238062, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mariana Zacharias Andre Chemaly, MD prescribe under Medicare Part D?
In 2024, Mariana Zacharias Andre Chemaly, MD had 5,329 Medicare Part D claims for 640 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.