Sonia Ramamoorthy, M.D.
NPI 1801812656 · Surgery Physician · San Diego, CA
Enrolled with Medicare as Practitioner - Colorectal Surgery (proctology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sonia Ramamoorthy, M.D. is a Surgery Physician provider in San Diego, CA (NPI 1801812656).
Provider details
- NPI number
- 1801812656
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- A65709 (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
167 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 45 | $97 |
| Diagnostic Exam of Anus Using an Endoscope46600 | 36 | $131 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 34 | $137 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 31 | $176 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 21 | $119 |
Typical Medicare-allowed amounts for these services range $97–$176 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$14,072 across 12 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
- 2006-07-14
- Last updated
- 2019-02-08
Frequently asked questions
- What is Sonia Ramamoorthy's NPI number?
- Sonia Ramamoorthy's National Provider Identifier (NPI) is 1801812656, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sonia Ramamoorthy's specialty?
- Sonia Ramamoorthy is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Sonia Ramamoorthy located?
- Sonia Ramamoorthy's practice location on file with NPPES is 200 W Arbor Dr, San Diego, CA 92103-9000.
- What is Sonia Ramamoorthy's phone number?
- The practice phone number listed in the NPPES registry for Sonia Ramamoorthy is (800) 926-8273.
- Does Sonia Ramamoorthy accept Medicare?
- Sonia Ramamoorthy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sonia Ramamoorthy's NPI active?
- Yes — Sonia Ramamoorthy's NPI (1801812656) is active in the NPPES registry as of the last update on 2019-02-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.