Nicholas Mellis, M.D.
NPI 1588663108 · Internal Medicine Physician · Timonium, MD
Nicholas Mellis, M.D. is a Internal Medicine Physician provider in Timonium, MD (NPI 1588663108).
Provider details
- NPI number
- 1588663108
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- D47762 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 88 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 126 | 42 |
| Atorvastatin Calcium | 89 | 27 |
| Levothyroxine Sodium | 75 | 22 |
| Famotidine | 75 | 29 |
| Montelukast Sodium | 72 | 25 |
| Amlodipine Besylate | 65 | 17 |
| Tamsulosin Hcl |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$14 across 1 record (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
- 2005-07-15
- Last updated
- 2023-09-26
- Certified
- 2023-09-26
Frequently asked questions
- What is Nicholas Mellis's NPI number?
- Nicholas Mellis's National Provider Identifier (NPI) is 1588663108, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas Mellis's specialty?
- Nicholas Mellis is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Nicholas Mellis located?
- Nicholas Mellis's practice location on file with NPPES is 2352 York Rd, Timonium, MD 21093-2236.
- What is Nicholas Mellis's phone number?
- The practice phone number listed in the NPPES registry for Nicholas Mellis is (410) 560-5652.
- Is Nicholas Mellis's NPI active?
- Yes — Nicholas Mellis's NPI (1588663108) is active in the NPPES registry as of the last update on 2023-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.