Jeffery Tun, M.D.
NPI 1598119083 · Internal Medicine Physician · Ridgecrest, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jeffery Tun, M.D. is a Internal Medicine Physician provider in Ridgecrest, CA (NPI 1598119083).
Provider details
- NPI number
- 1598119083
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 303196 (NY)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
10 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
328 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) |
|---|---|---|
| Test to Measure Oxygen Level in Blood Using Ear Or Finger Device Continuously Overnight94762 | 73 | $29 |
| Assessment of Emotional Or Behavioral Problems96127 | 61 | $5 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 58 | $143 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 31 | $9 |
| Urinalysis, Manual Test81002 | 21 | $3 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 17 | $10 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 16 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 82 | 32 |
| Metformin Hcl | 55 | 19 |
| Losartan Potassium | 55 | 21 |
| Tirzepatidebrand: Mounjaro | 41 | — |
| Amlodipine Besylate | 39 | 22 |
| Empagliflozinbrand: Jardiance | 32 | 12 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$659 across 28 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
- 2016-04-20
- Last updated
- 2024-09-25
- Certified
- 2024-09-25
Frequently asked questions
- What is Jeffery Tun's NPI number?
- Jeffery Tun's National Provider Identifier (NPI) is 1598119083, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jeffery Tun's specialty?
- Jeffery Tun is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jeffery Tun located?
- Jeffery Tun's practice location on file with NPPES is 1081 N China Lake Blvd, Ridgecrest, CA 93555-3130.
- What is Jeffery Tun's phone number?
- The practice phone number listed in the NPPES registry for Jeffery Tun is (760) 446-6404.
- Does Jeffery Tun accept Medicare?
- Jeffery Tun is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jeffery Tun's NPI active?
- Yes — Jeffery Tun's NPI (1598119083) is active in the NPPES registry as of the last update on 2024-09-25.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.