Eugene Pak, M.D.
NPI 1407891658 · Pain Medicine (Psychiatry & Neurology) Physician · Loma Linda, CA
Enrolled with Medicare as Practitioner - Physical Medicine and Rehabilitation · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eugene Pak, M.D. is a Pain Medicine (Psychiatry & Neurology) Physician provider in Loma Linda, CA (NPI 1407891658).
Provider details
- NPI number
- 1407891658
- Entity type
- Individual
- Primary specialty
- Pain Medicine (Psychiatry & Neurology) PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- MD426970 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
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
708 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 | 270 | $130 |
| Injection of Trigger Points, 3 Or More Muscles20553 | 92 | $63 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 78 | $167 |
| Injection of Anesthetic Or Steroid Into Joint Between Lower Spine and Hip Bone Using Imaging Guidance27096 | 59 | $112 |
| Injection of Substance Into Lower Spine Canal Using Imaging Guidance62323 | 48 | $100 |
| Injection Into Tendon Or Ligament20550 |
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 |
|---|---|---|
| Gabapentin | 330 | 100 |
| Baclofen | 197 | 78 |
| Duloxetine Hcl | 171 | 41 |
| Lidocaine | 143 | 55 |
| Tizanidine Hcl | 142 | 46 |
| Diclofenac Sodium | 130 | 52 |
| Methocarbamol | 75 | 33 |
| Naproxen | 72 | 23 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-19
- Last updated
- 2022-07-21
- Certified
- 2020-10-23
Frequently asked questions
- What is Eugene Pak's NPI number?
- Eugene Pak's National Provider Identifier (NPI) is 1407891658, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eugene Pak's specialty?
- Eugene Pak is listed in the NPPES registry with a primary specialty of Pain Medicine (Psychiatry & Neurology) Physician (Allopathic & Osteopathic Physicians).
- Where is Eugene Pak located?
- Eugene Pak's practice location on file with NPPES is 11406 Loma Linda Dr Ste 516, Loma Linda, CA 92354-3711.
- What is Eugene Pak's phone number?
- The practice phone number listed in the NPPES registry for Eugene Pak is (909) 558-6204.
- Does Eugene Pak accept Medicare?
- Eugene Pak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eugene Pak's NPI active?
- Yes — Eugene Pak's NPI (1407891658) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.