Nitin Aggarwal, M.D.
NPI 1407145402 · Gastroenterology Physician · North Chelmsford, MA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nitin Aggarwal, M.D. is a Gastroenterology Physician provider in North Chelmsford, MA (NPI 1407145402).
Provider details
- NPI number
- 1407145402
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 278545 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
15 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
4 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
838 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) |
|---|---|---|
| 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'SG2211 | 195 | $17 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 151 | $137 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 76 | $256 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 60 | $97 |
| Biopsy of Large Bowel Using a Flexible Endoscope45380 | 59 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 143 | 48 |
| Sod Sulf/Pot Chloride/Mag Sulfbrand: Sutab | 100 | 95 |
| Pantoprazole Sodium | 48 | 18 |
| Sodium, Potassium,mag Sulfatesbrand: Sod Sulf-Potass Sulf-Mag Sulf | 43 | 41 |
| Linaclotidebrand: Linzess | 33 | 14 |
| Lubiprostone | 24 | — |
| Famotidine | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,083 across 50 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
Additional practice locations (3)
- 4 Meeting House Rd Ste 6Chelmsford, MA 01824-2775Phone: (978) 454-9811
- 295 Varnum AveLowell, MA 01854-2134Phone: (978) 937-6000
- 9500 Euclid AveA31Cleveland, OH 44195-0001Phone: (216) 636-9561
Registry dates
- Enumerated
- 2011-03-31
- Last updated
- 2021-06-18
- Certified
- 2021-06-18
Frequently asked questions
- What is Nitin Aggarwal's NPI number?
- Nitin Aggarwal's National Provider Identifier (NPI) is 1407145402, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nitin Aggarwal's specialty?
- Nitin Aggarwal is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is Nitin Aggarwal located?
- Nitin Aggarwal's practice location on file with NPPES is 20 Research Pl Ste 220, North Chelmsford, MA 01863-2455.
- What is Nitin Aggarwal's phone number?
- The practice phone number listed in the NPPES registry for Nitin Aggarwal is (978) 459-6737.
- Does Nitin Aggarwal accept Medicare?
- Nitin Aggarwal is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nitin Aggarwal's NPI active?
- Yes — Nitin Aggarwal's NPI (1407145402) is active in the NPPES registry as of the last update on 2021-06-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.