Patrick Chen, M.D.
NPI 1598749616 · Internal Medicine Physician · Salinas, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Patrick Chen, M.D. is a Internal Medicine Physician provider in Salinas, CA (NPI 1598749616).
Provider details
- NPI number
- 1598749616
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A79664 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 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
4,495 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) |
|---|---|---|
| Admn Sarscov2 Vacc 1 Dose90480 | 2,431 | $46 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 563 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 548 | $104 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 346 | $84 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 189 | $49 |
| Administration of Influenza Virus VaccineG0008 | 97 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 97 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 526 | 154 |
| Lisinopril | 309 | 104 |
| Amlodipine Besylate | 305 | 84 |
| Levothyroxine Sodium | 295 | 86 |
| Metformin Hcl | 211 | 67 |
| Metoprolol Succinate | 191 | 52 |
| Simvastatin | 184 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$770 across 46 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
- 2005-12-01
- Last updated
- 2011-03-01
Frequently asked questions
- What is Patrick Chen's NPI number?
- Patrick Chen's National Provider Identifier (NPI) is 1598749616, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Patrick Chen's specialty?
- Patrick Chen is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Patrick Chen located?
- Patrick Chen's practice location on file with NPPES is 355 Abbott St, Salinas, CA 93901.
- What is Patrick Chen's phone number?
- The practice phone number listed in the NPPES registry for Patrick Chen is (831) 751-7070.
- Does Patrick Chen accept Medicare?
- Patrick Chen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Patrick Chen's NPI active?
- Yes — Patrick Chen's NPI (1598749616) is active in the NPPES registry as of the last update on 2011-03-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.