Ramachandran Srinivasan, M.D.
NPI 1689865503 · Rheumatology Physician · Monterey Park, CA
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ramachandran Srinivasan, M.D. is a Rheumatology Physician provider in Monterey Park, CA (NPI 1689865503).
Provider details
- NPI number
- 1689865503
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A25280 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
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
2,685 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) |
|---|---|---|
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 1,020 | $15 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 729 | $9 |
| Aspiration And/Or Injection of Fluid From Large Joint20610 | 264 | $73 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 147 | $107 |
| Administration of Chemotherapy Into Vein, Each Additional Hour96415 | 118 | $31 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 | 109 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Adalimumabbrand: Humira Pen | 253 | 36 |
| Methotrexate Sodiumbrand: Methotrexate | 242 | 60 |
| Hydroxychloroquine Sulfate | 229 | 61 |
| Prednisone | 161 | 75 |
| Infliximabbrand: Remicade | 152 | 29 |
| Romosozumab-Aqqgbrand: Evenity (2 Syringes) | 114 | 30 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$114 across 4 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
- 2007-08-06
- Last updated
- 2008-04-17
Frequently asked questions
- What is Ramachandran Srinivasan's NPI number?
- Ramachandran Srinivasan's National Provider Identifier (NPI) is 1689865503, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ramachandran Srinivasan's specialty?
- Ramachandran Srinivasan is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Ramachandran Srinivasan located?
- Ramachandran Srinivasan's practice location on file with NPPES is 941 S Atlantic Blvd, Monterey Park, CA 91754-4722.
- What is Ramachandran Srinivasan's phone number?
- The practice phone number listed in the NPPES registry for Ramachandran Srinivasan is (626) 458-8401.
- Does Ramachandran Srinivasan accept Medicare?
- Ramachandran Srinivasan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ramachandran Srinivasan's NPI active?
- Yes — Ramachandran Srinivasan's NPI (1689865503) is active in the NPPES registry as of the last update on 2008-04-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.