Poombavai Nagappan, MD
NPI 1043246689 · Internal Medicine Physician · Tigard, OR
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Poombavai Nagappan, MD is a Internal Medicine Physician provider in Tigard, OR (NPI 1043246689).
Provider details
- NPI number
- 1043246689
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MD22662 (OR)
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
20 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
902 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 311 | $16 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 229 | $96 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 100 | $111 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 75 | $45 |
| Assessment of Emotional Or Behavioral Problems96127 | 65 | $5 |
| Hemoglobin A1c Level |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 124 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 827 | 229 |
| Levothyroxine Sodium | 412 | 110 |
| Amlodipine Besylate | 293 | 85 |
| Losartan Potassium | 278 | 82 |
| Lisinopril | 218 | 61 |
| Gabapentin | 195 | 56 |
| Metoprolol Succinate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-24
- Last updated
- 2020-10-02
- Certified
- 2020-10-02
Frequently asked questions
- What is Poombavai Nagappan's NPI number?
- Poombavai Nagappan's National Provider Identifier (NPI) is 1043246689, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Poombavai Nagappan's specialty?
- Poombavai Nagappan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Poombavai Nagappan located?
- Poombavai Nagappan's practice location on file with NPPES is 12442 Sw Scholls Ferry Rd, Tigard, OR 97223-3396.
- What is Poombavai Nagappan's phone number?
- The practice phone number listed in the NPPES registry for Poombavai Nagappan is (503) 216-9200.
- Does Poombavai Nagappan accept Medicare?
- Poombavai Nagappan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Poombavai Nagappan's NPI active?
- Yes — Poombavai Nagappan's NPI (1043246689) is active in the NPPES registry as of the last update on 2020-10-02.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.