Mathew Isho, MD
NPI 1841235645 · Colon & Rectal Surgery Physician · San Diego, CA
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mathew Isho, MD is a Colon & Rectal Surgery Physician provider in San Diego, CA (NPI 1841235645).
Provider details
- NPI number
- 1841235645
- Entity type
- Individual
- Primary specialty
- Colon & Rectal Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- A93470 (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
595 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) |
|---|---|---|
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More99203 | 130 | $119 |
| Diagnostic Exam of Anus Using an Endoscope46600 | 116 | $133 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 70 | $97 |
| Colorectal Cancer Screening; Colonoscopy on Individual at High RiskG0105 | 48 | $184 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 47 | $176 |
| Removal of External Hemorrhoids By Rubber Banding46221 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Sod Picosulf/Mag Ox/Citric Acbrand: Clenpiq | 47 | 47 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 41 | 34 |
| Peg3350/Sod Sulf,bicarb,cl/Kclbrand: Gavilyte-G | 38 | 38 |
| Neomycin Sulfate | 36 | 35 |
| Erythromycin Basebrand: Erythromycin | 34 | 33 |
| Tramadol Hcl | 28 | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$6,616 across 14 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
- 2006-06-17
- Last updated
- 2020-06-12
- Certified
- 2020-06-12
Frequently asked questions
- What is Mathew Isho's NPI number?
- Mathew Isho's National Provider Identifier (NPI) is 1841235645, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mathew Isho's specialty?
- Mathew Isho is listed in the NPPES registry with a primary specialty of Colon & Rectal Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Mathew Isho located?
- Mathew Isho's practice location on file with NPPES is 550 Washington St, San Diego, CA 92103-2213.
- What is Mathew Isho's phone number?
- The practice phone number listed in the NPPES registry for Mathew Isho is (619) 686-4011.
- Does Mathew Isho accept Medicare?
- Mathew Isho is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mathew Isho's NPI active?
- Yes — Mathew Isho's NPI (1841235645) is active in the NPPES registry as of the last update on 2020-06-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.