Ratul Chatterjee, M.D.
NPI 1770597387 · Internal Medicine Physician · Huntington Beach, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ratul Chatterjee, M.D. is a Internal Medicine Physician provider in Huntington Beach, CA (NPI 1770597387).
Provider details
- NPI number
- 1770597387
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A79661 (CA)
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
19 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
5,433 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) |
|---|---|---|
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 2,060 | $59 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,278 | $138 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 1,237 | $193 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 250 | $140 |
| Advance Care Planning, First 30 Minutes99497 | 131 | $86 |
| Physician Or Allowed Practitioner Supervision of a Patient Receiving Medicare-Covered Services Provided By a Participating Home Health Agency (patient Not Present) Requiring Complex and Multidisciplinary Care Modalities Involving Regular Physician Or Allow |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 173 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 1,227 | 348 |
| Losartan Potassium | 656 | 195 |
| Levothyroxine Sodium | 632 | 164 |
| Amlodipine Besylate | 348 | 107 |
| Pantoprazole Sodium | 323 | 96 |
| Tamsulosin Hcl | 282 | 90 |
| Escitalopram Oxalate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$909 across 13 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
- 2006-07-28
- Last updated
- 2011-10-13
Frequently asked questions
- What is Ratul Chatterjee's NPI number?
- Ratul Chatterjee's National Provider Identifier (NPI) is 1770597387, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ratul Chatterjee's specialty?
- Ratul Chatterjee is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ratul Chatterjee located?
- Ratul Chatterjee's practice location on file with NPPES is 19582 Beach Blvd, Huntington Beach, CA 92648-2996.
- What is Ratul Chatterjee's phone number?
- The practice phone number listed in the NPPES registry for Ratul Chatterjee is (714) 378-2403.
- Does Ratul Chatterjee accept Medicare?
- Ratul Chatterjee is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ratul Chatterjee's NPI active?
- Yes — Ratul Chatterjee's NPI (1770597387) is active in the NPPES registry as of the last update on 2011-10-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.