Matthew Clarke, MD
NPI 1528315835 · Endocrinology, Diabetes & Metabolism Physician · Long Beach, CA
Enrolled with Medicare as Practitioner - Endocrinology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Matthew Clarke, MD is a Endocrinology, Diabetes & Metabolism Physician provider in Long Beach, CA (NPI 1528315835).
Provider details
- NPI number
- 1528315835
- Entity type
- Individual
- Primary specialty
- Endocrinology, Diabetes & Metabolism PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A134249 (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
13 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
256 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 50 | $130 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 48 | $170 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 46 | $97 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 26 | $88 |
| Telephone Medical Discussion With Physician, 11-20 Minutes99442 | 23 | $70 |
| Telephone Medical Discussion With Physician, 21-30 Minutes99443 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 20 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 114 | 32 |
| Metformin Hcl | 69 | 23 |
| Atorvastatin Calcium | 63 | 24 |
| Dulaglutidebrand: Trulicity | 57 | — |
| Glimepiride | 53 | 16 |
| Insulin Glargine,hum.rec.anlogbrand: Lantus Solostar | 52 | 15 |
| Empagliflozin |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$176 across 7 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
- 2012-08-07
- Last updated
- 2019-06-03
Frequently asked questions
- What is Matthew Clarke's NPI number?
- Matthew Clarke's National Provider Identifier (NPI) is 1528315835, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Matthew Clarke's specialty?
- Matthew Clarke is listed in the NPPES registry with a primary specialty of Endocrinology, Diabetes & Metabolism Physician (Allopathic & Osteopathic Physicians).
- Where is Matthew Clarke located?
- Matthew Clarke's practice location on file with NPPES is 1868 Pacific Ave, Long Beach, CA 90806-6113.
- What is Matthew Clarke's phone number?
- The practice phone number listed in the NPPES registry for Matthew Clarke is (562) 595-4718.
- Does Matthew Clarke accept Medicare?
- Matthew Clarke is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Matthew Clarke's NPI active?
- Yes — Matthew Clarke's NPI (1528315835) is active in the NPPES registry as of the last update on 2019-06-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.