Tejinder Singh, MD
NPI 1104820729 · Internal Medicine Physician · Upland, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Tejinder Singh, MD is a Internal Medicine Physician provider in Upland, CA (NPI 1104820729).
Provider details
- NPI number
- 1104820729
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- License
- A41265 (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
21 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
1,917 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 | 1,180 | $113 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 189 | $133 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 184 | $49 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 103 | $79 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 79 | $15 |
| Administration of Influenza Virus Vaccine |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 186 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 748 | 206 |
| Levothyroxine Sodium | 571 | 120 |
| Amlodipine Besylate | 477 | 134 |
| Omeprazole | 448 | 126 |
| Metformin Hcl | 419 | 113 |
| Losartan Potassium | 316 | 89 |
| Pantoprazole Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-10
- Last updated
- 2007-07-08
Frequently asked questions
- What is Tejinder Singh's NPI number?
- Tejinder Singh's National Provider Identifier (NPI) is 1104820729, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Tejinder Singh's specialty?
- Tejinder Singh is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Tejinder Singh located?
- Tejinder Singh's practice location on file with NPPES is 914 W Foothill Blvd, Upland, CA 91786-3785.
- What is Tejinder Singh's phone number?
- The practice phone number listed in the NPPES registry for Tejinder Singh is (909) 982-8944.
- Does Tejinder Singh accept Medicare?
- Tejinder Singh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Tejinder Singh's NPI active?
- Yes — Tejinder Singh's NPI (1104820729) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.