Peter Pak, M.D.
NPI 1588955694 · Trauma Surgery Physician · Mission Viejo, CA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Peter Pak, M.D. is a Trauma Surgery Physician provider in Mission Viejo, CA (NPI 1588955694).
Provider details
- NPI number
- 1588955694
- Entity type
- Individual
- Primary specialty
- Trauma Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A139698 (CA)
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
15 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
441 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) |
|---|---|---|
| Critical Care, First 30-74 Minutes99291 | 232 | $217 |
| Critical Care, Each Additional 30 Minutes99292 | 52 | $109 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 44 | $82 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 41 | $123 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 20 | $119 |
| Ultrasound Scan of Chest76604 | 13 | $26 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,872 across 19 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
- 2011-04-22
- Last updated
- 2024-07-19
- Certified
- 2024-07-19
Frequently asked questions
- What is Peter Pak's NPI number?
- Peter Pak's National Provider Identifier (NPI) is 1588955694, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peter Pak's specialty?
- Peter Pak is listed in the NPPES registry with a primary specialty of Trauma Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Peter Pak located?
- Peter Pak's practice location on file with NPPES is 27799 Medical Center Rd Ste 440, Mission Viejo, CA 92691-6400.
- What is Peter Pak's phone number?
- The practice phone number listed in the NPPES registry for Peter Pak is (949) 364-1007.
- Does Peter Pak accept Medicare?
- Peter Pak is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Peter Pak's NPI active?
- Yes — Peter Pak's NPI (1588955694) is active in the NPPES registry as of the last update on 2024-07-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.