Eric Ritter, MD
NPI 1659557593 · Hospitalist Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Addiction Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Eric Ritter, MD is a Hospitalist Physician provider in Baltimore, MD (NPI 1659557593).
Provider details
- NPI number
- 1659557593
- Entity type
- Individual
- Primary specialty
- Hospitalist PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- D71390 (MD)
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
18 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
154 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 154 | $178 |
Typical Medicare-allowed amounts for these services range $178–$178 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 27 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Gabapentin | 94 | 14 |
| Buprenorphine Hcl/Naloxone Hclbrand: Buprenorphine-Naloxone | 92 | 15 |
| Amlodipine Besylate | 74 | 14 |
| Lisinopril | 70 | 11 |
| Buprenorphine Hcl/Naloxone Hclbrand: Suboxone | 58 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 52 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$40,296 across 65 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
Additional practice locations (2)
- 2001 Medical PkwyAnnapolis, MD 21401-3773Phone: (443) 481-1000
- 703 Hunting PlBaltimore, MD 21229-1427Phone: (617) 842-8502Fax: (617) 842-8502
Registry dates
- Enumerated
- 2008-01-10
- Last updated
- 2021-12-17
- Certified
- 2021-12-17
Frequently asked questions
- What is Eric Ritter's NPI number?
- Eric Ritter's National Provider Identifier (NPI) is 1659557593, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Eric Ritter's specialty?
- Eric Ritter is listed in the NPPES registry with a primary specialty of Hospitalist Physician (Allopathic & Osteopathic Physicians).
- Where is Eric Ritter located?
- Eric Ritter's practice location on file with NPPES is 1335 W Baltimore St, Baltimore, MD 21223-2402.
- What is Eric Ritter's phone number?
- The practice phone number listed in the NPPES registry for Eric Ritter is (240) 856-3375.
- Does Eric Ritter accept Medicare?
- Eric Ritter is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Eric Ritter's NPI active?
- Yes — Eric Ritter's NPI (1659557593) is active in the NPPES registry as of the last update on 2021-12-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.