Sudha Karupaiah, MD
NPI 1316984800 · Internal Medicine Physician · San Jose, CA
Enrolled with Medicare as Practitioner - Sleep Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Sudha Karupaiah, MD is a Internal Medicine Physician provider in San Jose, CA (NPI 1316984800).
Provider details
- NPI number
- 1316984800
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- A85414 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,190 Medicare services, 2024 (ranked within specialty)
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 methodology.
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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 968 | $156 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 79 | $200 |
| Sleep Study in Sleep Lab (6 Years Or Older)95810 | 63 | $850 |
| Sleep Study in Sleep Lab With Continuous Airway Pressure (6 Years Or Older)95811 | 42 | $887 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 20 | $158 |
| Annual Depression Screening, 5 to 15 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 75 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 258 | 80 |
| Levothyroxine Sodium | 210 | 57 |
| Amlodipine Besylate | 189 | 54 |
| Losartan Potassium | 178 | 51 |
| Lisinopril | 162 | 43 |
| Metformin Hcl | 159 | 46 |
| Simvastatin | 135 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-01
- Last updated
- 2022-05-25
- Certified
- 2022-05-25
Frequently asked questions
- What is Sudha Karupaiah's NPI number?
- Sudha Karupaiah's National Provider Identifier (NPI) is 1316984800, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sudha Karupaiah's specialty?
- Sudha Karupaiah is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sudha Karupaiah located?
- Sudha Karupaiah's practice location on file with NPPES is 560 E Saint John St, San Jose, CA 95112-3413.
- What is Sudha Karupaiah's phone number?
- The practice phone number listed in the NPPES registry for Sudha Karupaiah is (408) 279-1400.
- Does Sudha Karupaiah accept Medicare?
- Sudha Karupaiah is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Sudha Karupaiah's NPI active?
- Yes — Sudha Karupaiah's NPI (1316984800) is active in the NPPES registry as of the last update on 2022-05-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.