Daniel Chelliah, MD
NPI 1174847933 · Infectious Disease Physician · Mountain View, CA
Enrolled with Medicare as Practitioner - Infectious Disease · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Daniel Chelliah, MD is a Infectious Disease Physician provider in Mountain View, CA (NPI 1174847933).
Provider details
- NPI number
- 1174847933
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A121423 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 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
670 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 393 | $133 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 100 | $217 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 70 | $194 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 51 | $55 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 24 | $263 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Rifampin | 41 |
| Elviteg/Cob/Emtri/Tenof Alafenbrand: Genvoya | 28 |
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 25 |
| Ethambutol Hcl | 24 |
| Amoxicillin | 23 |
| Penicillin V Potassium | 21 |
| Azithromycin | 19 |
| Cephalexin | 18 |
| Ceftriaxone Sodiumbrand: Ceftriaxone | 13 |
| Isoniazid | 12 |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-03-23
- Last updated
- 2016-10-07
Frequently asked questions
- What is Daniel Chelliah's NPI number?
- Daniel Chelliah's National Provider Identifier (NPI) is 1174847933, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Daniel Chelliah's specialty?
- Daniel Chelliah is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Daniel Chelliah located?
- Daniel Chelliah's practice location on file with NPPES is 701 E. El Camino Real, Mountain View, CA 94040-2833.
- What is Daniel Chelliah's phone number?
- The practice phone number listed in the NPPES registry for Daniel Chelliah is (650) 934-7599.
- Does Daniel Chelliah accept Medicare?
- Daniel Chelliah is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Daniel Chelliah's NPI active?
- Yes — Daniel Chelliah's NPI (1174847933) is active in the NPPES registry as of the last update on 2016-10-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.