John Paik-Tesch, MD
NPI 1912019563 · Family Medicine Physician · Merced, CA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Paik-Tesch, MD is a Family Medicine Physician provider in Merced, CA (NPI 1912019563).
Provider details
- NPI number
- 1912019563
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G75912 (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
19 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
4,339 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 555 | $94 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 510 | $133 |
| Annual Alcohol Misuse Screening, 5 to 15 MinutesG0442 | 332 | $21 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 310 | $17 |
| Chronic Care Management Services, First 20 Minutes of Clinical Staff Time Directed By Health Care Professional, Per Calendar Month99490 | 261 | $67 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 106 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 325 | 88 |
| Amlodipine Besylate | 241 | 61 |
| Lisinopril | 236 | 58 |
| Levothyroxine Sodium | 187 | 38 |
| Losartan Potassium | 153 | 35 |
| Gabapentin | 129 | 26 |
| Sertraline Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-31
- Last updated
- 2019-12-19
- Certified
- 2019-12-19
Frequently asked questions
- What is John Paik-Tesch's NPI number?
- John Paik-Tesch's National Provider Identifier (NPI) is 1912019563, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Paik-Tesch's specialty?
- John Paik-Tesch is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is John Paik-Tesch located?
- John Paik-Tesch's practice location on file with NPPES is 3385 G St Ste a, Merced, CA 95340-0980.
- What is John Paik-Tesch's phone number?
- The practice phone number listed in the NPPES registry for John Paik-Tesch is (209) 725-3122.
- Does John Paik-Tesch accept Medicare?
- John Paik-Tesch is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Paik-Tesch's NPI active?
- Yes — John Paik-Tesch's NPI (1912019563) is active in the NPPES registry as of the last update on 2019-12-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.