Ramu Thiagarajan, M.D.
NPI 1841203783 · Neurology Physician · Porterville, CA
Enrolled with Medicare as Practitioner - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ramu Thiagarajan, M.D. is a Neurology Physician provider in Porterville, CA (NPI 1841203783).
Provider details
- NPI number
- 1841203783
- Entity type
- Individual
- Primary specialty
- Neurology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- Yes
- License
- A95502 (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
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
4,428 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 | 1,440 | $92 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 1,325 | $130 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 573 | $77 |
| Needle Measurement of Electrical Activity in Arm Or Leg Muscles, Complete Study95886 | 249 | $100 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 177 | $170 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 114 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Memantine Hcl | 1,527 | 298 |
| Gabapentin | 881 | 230 |
| Levetiracetam | 764 | 149 |
| Duloxetine Hcl | 754 | 186 |
| Donepezil Hcl | 733 | 199 |
| Pregabalin | 506 | 148 |
| Carbidopa/Levodopabrand: Carbidopa-Levodopa | 436 | 103 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,445 across 86 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 (1)
- 591 W Putnam AvePorterville, CA 93257-3260Phone: (559) 784-5717Fax: (559) 784-2443
Registry dates
- Enumerated
- 2006-08-14
- Last updated
- 2024-03-27
- Certified
- 2024-03-27
Frequently asked questions
- What is Ramu Thiagarajan's NPI number?
- Ramu Thiagarajan's National Provider Identifier (NPI) is 1841203783, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ramu Thiagarajan's specialty?
- Ramu Thiagarajan is listed in the NPPES registry with a primary specialty of Neurology Physician (Allopathic & Osteopathic Physicians).
- Where is Ramu Thiagarajan located?
- Ramu Thiagarajan's practice location on file with NPPES is 382 North Pearson Drive, Porterville, CA 93257-3368.
- What is Ramu Thiagarajan's phone number?
- The practice phone number listed in the NPPES registry for Ramu Thiagarajan is (559) 783-0100.
- Does Ramu Thiagarajan accept Medicare?
- Ramu Thiagarajan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ramu Thiagarajan's NPI active?
- Yes — Ramu Thiagarajan's NPI (1841203783) is active in the NPPES registry as of the last update on 2024-03-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.