Catherine Twimasi, MD
NPI 1669853222 · Family Medicine Physician · Suitland, MD
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Catherine Twimasi, MD is a Family Medicine Physician provider in Suitland, MD (NPI 1669853222).
Provider details
- NPI number
- 1669853222
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- Yes
- License
- D84571 (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
11 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
149 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 74 | $96 |
| Admn Sarscov2 Vacc 1 Dose90480 | 35 | $48 |
| Administration of Influenza Virus VaccineG0008 | 27 | $36 |
| Telephone Medical Discussion Provided By Nonphysician Professional, 11-20 Minutes98967 | 13 | $26 |
Typical Medicare-allowed amounts for these services range $26–$96 (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 · 120 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 827 | 280 |
| Amlodipine Besylate | 528 | 182 |
| Hydrochlorothiazide | 396 | 129 |
| Losartan Potassium | 283 | 90 |
| Lisinopril | 283 | 92 |
| Metformin Hcl | 245 | 77 |
| Glipizide | 226 | 82 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-06-09
- Last updated
- 2021-05-30
- Certified
- 2021-05-30
Frequently asked questions
- What is Catherine Twimasi's NPI number?
- Catherine Twimasi's National Provider Identifier (NPI) is 1669853222, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Catherine Twimasi's specialty?
- Catherine Twimasi is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Catherine Twimasi located?
- Catherine Twimasi's practice location on file with NPPES is 5100 Auth Way, Suitland, MD 20746-4207.
- What is Catherine Twimasi's phone number?
- The practice phone number listed in the NPPES registry for Catherine Twimasi is (301) 702-5000.
- Does Catherine Twimasi accept Medicare?
- Catherine Twimasi is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Catherine Twimasi's NPI active?
- Yes — Catherine Twimasi's NPI (1669853222) is active in the NPPES registry as of the last update on 2021-05-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.