Katherine Addai, MD
NPI 1437307600 · Internal Medicine Physician · Baltimore, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Addai, MD is a Internal Medicine Physician provider in Baltimore, MD (NPI 1437307600).
Provider details
- NPI number
- 1437307600
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- D72741 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
17 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
941 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 414 | $79 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 194 | $119 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 181 | $114 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 96 | $175 |
| Subsequent Hospital Care With Straightforward Or Low Level of Medical Decision Making, Per Day, If Using Time, at Least 25 Minutes99231 | 45 | $50 |
| Hospital Discharge Day Management, 30 Minutes Or Less99238 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 26 | 22 |
| Furosemide | 20 | 20 |
| Pantoprazole Sodium | 20 | 14 |
| Apixabanbrand: Eliquis | 16 | — |
| Metoprolol Succinate | 14 | — |
| Clopidogrel Bisulfatebrand: Clopidogrel | 13 | — |
| Azithromycin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2008-08-29
- Last updated
- 2011-08-29
Frequently asked questions
- What is Katherine Addai's NPI number?
- Katherine Addai's National Provider Identifier (NPI) is 1437307600, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Addai's specialty?
- Katherine Addai is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Addai located?
- Katherine Addai's practice location on file with NPPES is 900 S Caton Ave, Baltimore, MD 21229-5201.
- What is Katherine Addai's phone number?
- The practice phone number listed in the NPPES registry for Katherine Addai is (410) 368-6000.
- Does Katherine Addai accept Medicare?
- Katherine Addai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Addai's NPI active?
- Yes — Katherine Addai's NPI (1437307600) is active in the NPPES registry as of the last update on 2011-08-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.