Siva Ambalam, M.P.H., D.O.
NPI 1619234788 · Family Medicine Physician · Arlington, VA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Siva Ambalam, M.P.H., D.O. is a Family Medicine Physician provider in Arlington, VA (NPI 1619234788).
Provider details
- NPI number
- 1619234788
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.P.H., D.O.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 0102205174 (VA)
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
14 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
108 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 High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 40 | $198 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 38 | $144 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 18 | $16 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 12 | $244 |
Typical Medicare-allowed amounts for these services range $16–$244 (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 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 69 | 18 |
| Gabapentin | 31 | — |
| Amlodipine Besylate | 30 | — |
| Rosuvastatin Calcium | 26 | — |
| Montelukast Sodium | 24 | — |
| Prednisone | 24 | — |
| Escitalopram Oxalate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2012-04-13
- Last updated
- 2022-09-29
- Certified
- 2022-09-29
Frequently asked questions
- What is Siva Ambalam's NPI number?
- Siva Ambalam's National Provider Identifier (NPI) is 1619234788, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Siva Ambalam's specialty?
- Siva Ambalam is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Siva Ambalam located?
- Siva Ambalam's practice location on file with NPPES is 1005 N Glebe Rd Ste 160, Arlington, VA 22201.
- What is Siva Ambalam's phone number?
- The practice phone number listed in the NPPES registry for Siva Ambalam is (571) 492-3045.
- Does Siva Ambalam accept Medicare?
- Siva Ambalam is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Siva Ambalam's NPI active?
- Yes — Siva Ambalam's NPI (1619234788) is active in the NPPES registry as of the last update on 2022-09-29.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.