Megha Ambati
NPI 1083849111 · Internal Medicine Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Megha Ambati is a Internal Medicine Physician provider in Walnut Creek, CA (NPI 1083849111).
Provider details
- NPI number
- 1083849111
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- A125755 (CA)
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
17 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
270 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 157 | $83 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 45 | $125 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 44 | $121 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 24 | $181 |
Typical Medicare-allowed amounts for these services range $83–$181 (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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$52 across 2 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 (1)
- 2700 Grant St Ste 200Concord, CA 94520Phone: (925) 674-2609
Registry dates
- Enumerated
- 2009-05-19
- Last updated
- 2019-04-18
Frequently asked questions
- What is Megha Ambati's NPI number?
- Megha Ambati's National Provider Identifier (NPI) is 1083849111, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Megha Ambati's specialty?
- Megha Ambati is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Megha Ambati located?
- Megha Ambati's practice location on file with NPPES is 1220 Rossmoor Pkwy, Walnut Creek, CA 94595.
- What is Megha Ambati's phone number?
- The practice phone number listed in the NPPES registry for Megha Ambati is (925) 947-3312.
- Does Megha Ambati accept Medicare?
- Megha Ambati is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Megha Ambati's NPI active?
- Yes — Megha Ambati's NPI (1083849111) is active in the NPPES registry as of the last update on 2019-04-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.