Mariana Chemaly, MD
NPI 1811183056 · Internal Medicine Physician · Lowell, MA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mariana Chemaly, MD is a Internal Medicine Physician provider in Lowell, MA (NPI 1811183056).
Provider details
- NPI number
- 1811183056
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 238062 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,754 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 511 | $139 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 291 | $99 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 215 | $141 |
| Annual Depression Screening, 5 to 15 MinutesG0444 | 201 | $21 |
| Hemoglobin A1c Level83036 | 149 | $10 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'S |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 81 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 448 | 140 |
| Amlodipine Besylate | 315 | 95 |
| Lisinopril | 280 | 95 |
| Simvastatin | 188 | 60 |
| Levothyroxine Sodium | 161 | 52 |
| Losartan Potassium | 154 | 53 |
| Omeprazole | 152 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$146 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-09-21
- Last updated
- 2012-01-18
Frequently asked questions
- What is Mariana Chemaly's NPI number?
- Mariana Chemaly's National Provider Identifier (NPI) is 1811183056, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mariana Chemaly's specialty?
- Mariana Chemaly is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Mariana Chemaly located?
- Mariana Chemaly's practice location on file with NPPES is 45 Palmer St, Lowell, MA 01852-1834.
- What is Mariana Chemaly's phone number?
- The practice phone number listed in the NPPES registry for Mariana Chemaly is (978) 970-1607.
- Does Mariana Chemaly accept Medicare?
- Mariana Chemaly is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mariana Chemaly's NPI active?
- Yes — Mariana Chemaly's NPI (1811183056) is active in the NPPES registry as of the last update on 2012-01-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.