John Andersen, D.O.
NPI 1265870406 · Anatomic Pathology & Clinical Pathology Physician · Houston, TX
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Andersen, D.O. is a Anatomic Pathology & Clinical Pathology Physician provider in Houston, TX (NPI 1265870406).
Provider details
- NPI number
- 1265870406
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Male
- Sole proprietor
- No
- License
- H91442 (MD)
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 tenure28% of score
13 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
236 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) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 129 | $39 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 60 | $29 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 29 | $36 |
| Special Stained Specimen Slides to Identify Organisms Including Interpretation and Report88312 | 18 | $28 |
Typical Medicare-allowed amounts for these services range $28–$39 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Additional practice locations (1)
- 600 N Wolfe StBaltimore, MD 21287-0005Phone: (410) 955-3580Fax: (410) 614-1287
Registry dates
- Enumerated
- 2013-06-10
- Last updated
- 2025-06-16
- Certified
- 2025-06-16
Frequently asked questions
- What is John Andersen's NPI number?
- John Andersen's National Provider Identifier (NPI) is 1265870406, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Andersen's specialty?
- John Andersen is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is John Andersen located?
- John Andersen's practice location on file with NPPES is 6720 Bertner Ave, Houston, TX 77030-2604.
- What is John Andersen's phone number?
- The practice phone number listed in the NPPES registry for John Andersen is (713) 798-2222.
- Does John Andersen accept Medicare?
- John Andersen is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Andersen's NPI active?
- Yes — John Andersen's NPI (1265870406) is active in the NPPES registry as of the last update on 2025-06-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.