Ronald Mera, M.D.
NPI 1538123310 · Internal Medicine Physician · Chesterfield, MO
Ronald Mera, M.D. is a Internal Medicine Physician provider in Chesterfield, MO (NPI 1538123310).
Provider details
- NPI number
- 1538123310
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- R4N75 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 35 | 17 |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 28 | — |
| Amlodipine Besylate | 25 | 12 |
| Hydrochlorothiazide | 24 | — |
| Lisinopril | 20 | — |
| Metformin Hcl | 19 | — |
| Losartan Potassium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-04-17
- Last updated
- 2014-07-03
Frequently asked questions
- What is Ronald Mera's NPI number?
- Ronald Mera's National Provider Identifier (NPI) is 1538123310, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ronald Mera's specialty?
- Ronald Mera is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Ronald Mera located?
- Ronald Mera's practice location on file with NPPES is 222 S Woods Mill Rd, Chesterfield, MO 63017-3625.
- What is Ronald Mera's phone number?
- The practice phone number listed in the NPPES registry for Ronald Mera is (314) 878-4141.
- Is Ronald Mera's NPI active?
- Yes — Ronald Mera's NPI (1538123310) is active in the NPPES registry as of the last update on 2014-07-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.