2026 NPPES data Internal Medicine Physician NPI 1083849111
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MEGHA AMBATI

Internal Medicine Physician in WALNUT CREEK, California. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
139
Medicare Part D claims · 47 beneficiaries · Internal Medicine Physician avg: 3K
MIPS score
85.7317/100
▲ 3 pts above national avg 83.1 · [object Object]
Industry payments
$52.48
2 payments · CMS Open Payments (Sunshine Act)
What the federal data reveals: MEGHA AMBATI is a Internal Medicine Physician ([object Object]) practicing in WALNUT CREEK, California with a Medicare Part D prescribing footprint of 139 claims across 47 beneficiaries . Their CMS MIPS Final Score of 85.7317/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities . Industry payments of $52.48 across 2 transactions are disclosed under CMS Open Payments (Sunshine Act).

What stands out: MEGHA AMBATI reported a CMS MIPS final score of 85.7317 out of 100, above the 83.1 national average, and filed 139 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

MEGHA AMBATI practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

MEGHA AMBATI at a glance

High performer (top quartile)

NPI registry status

Active

Issued 05/19/2009

NPI 1083849111

Primary specialty

Internal Medicine Physician

High-volume

172,858 US NPIs in this specialty

Medicare Part D claims

139 95% vs specialty avg

2023 prescription claims

Specialty avg: 2,716

MIPS final score

85.7317/100 2.6317000000000093% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in California

How Internal Medicine Physician compares to other specialties among California providers

California providers

Internal Medicine Physician share within California

1. Internal Medicine Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Internal Medicine Physician share within California

Medicare quality performance — MIPS

MEGHA AMBATI's 2023 MIPS final score plotted against the Internal Medicine Physician national average

High performer (top quartile)
MIPS Final Score
85.7317/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Internal Medicine Physician) — 85.7317/100 vs national avg 83.1

0%100%National avg83%85.7%
MIPS final score (Internal Medicine Physician) — 85.7317/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

MEGHA AMBATI is a Internal Medicine Physician provider practicing in WALNUT CREEK, California, according to the CMS National Plan and Provider Enumeration System (NPPES). NPI: 1083849111. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

MEGHA AMBATI appears in the CMS NPPES registry as a Internal Medicine Physician provider at 1220 ROSSMOOR PKWY, WALNUT CREEK, CA, 94595, with a listed phone of (925) 947-3312. NPI 1083849111 was issued on 05/19/2009. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what AMBATI most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 139 prescription claims written by this provider, covering 47 Medicare beneficiaries and totaling roughly $14K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 85.7317/100 for the 2023 performance year (Quality 82.6837, Cost 70.5887), compared with the national average of 83.1.

Internal Medicine Physician is a high-volume specialty nationwide, with 172,858 enrolled providers across 56 states and an average of 2,716 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

1220 ROSSMOOR PKWY
WALNUT CREEK, CA 94595

Provider Details

NPI 1083849111
Specialty Internal Medicine Physician
Gender Female
NPI Issued 05/19/2009

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

85.7317
Final Score
Avg: 83.1
82.6837
Quality
70.5887
Cost
99
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where MEGHA AMBATI bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

HEALTHTEXAS PROVIDER NETWORK
DALLAS, TX

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Industry payments received (2024) — CMS Open Payments transparency data

The federal Physician Payments Sunshine Act (part of the Affordable Care Act) requires drug and medical-device manufacturers + group purchasing organizations to publicly report payments and other transfers of value to physicians and teaching hospitals. The data below covers 2024 for MEGHA AMBATI. Source: openpaymentsdata.cms.gov.

Total received

$52

Largest payer

Ferring Pharmaceuticals Inc.

Most common payment type

Food and Beverage

Industry payments are not necessarily indicators of bias — they include research funding, consulting fees for evidence-based work, royalties for inventions, food at conferences, and similar items. The disclosure exists for transparency. Read our methodology for how we interpret this data.

License & disciplinary context — California MBC 2023 annual report

Aggregate state board data only — NOT a determination of any individual provider's status. The figures below describe statewide disciplinary activity across all ~150K California medical licensees in 2023 — they are NOT specific to MEGHA AMBATI. To verify MEGHA AMBATI's current license status, search the MBC public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.

576
Total board actions, California 2023
Across 556 cases
3.84
Actions per 1,000 licensees
California statewide rate
probation
Most common action type
186 cases

MBC publishes annual disciplinary statistics as part of public-record reporting under each state's Administrative Procedure Act. See the full breakdown by action type and year on the California disciplinary trends page. Cross-checked against FSMB U.S. Medical Regulatory Trends.

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

139
Total Claims
$14K
Total Drug Cost
47
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
155
Total Day Supply
3,466
Generic Drug Cost
$2K
Antibiotic Claims
21

Patient Demographics

Average Patient Age
72.3 years
Avg HCC Risk Score
2.52
Gender Split
49% female / 51% male

Internal Medicine Physician Overview

How MEGHA AMBATI fits within the Internal Medicine Physician landscape nationally.

172,858
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider

MEGHA AMBATI's 139 claims are below the specialty average of 2,716.

Nearby Internal Medicine Physician Providers in California

Other clinicians with the same primary specialty enrolled in California, drawn from the same CMS NPPES roster as AMBATI.

Compare Internal Medicine Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is MEGHA AMBATI's specialty?
MEGHA AMBATI specializes in Internal Medicine Physician and practices in WALNUT CREEK, California.
How much does MEGHA AMBATI prescribe under Medicare Part D?
In 2023, MEGHA AMBATI wrote 139 Medicare Part D claims totaling $14K in drug costs for 47 beneficiaries.
What is MEGHA AMBATI's Medicare quality score?
MEGHA AMBATI has a CMS MIPS Final Score of 85.7317/100 (Quality: 82.6837, Cost: 70.5887). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is MEGHA AMBATI located?
MEGHA AMBATI is located at 1220 ROSSMOOR PKWY, WALNUT CREEK, CA, 94595. Phone: (925) 947-3312.
What is MEGHA AMBATI's NPI number?
MEGHA AMBATI's National Provider Identifier (NPI) is 1083849111, issued on 05/19/2009.
How many Internal Medicine Physician providers are there in the US?
There are 172,858 Internal Medicine Physician providers across 56 states in the US. The average Internal Medicine Physician provider writes 2,716 Medicare Part D claims per year.
Does MEGHA AMBATI accept Medicare?
MEGHA AMBATI appears in CMS Medicare data with 139 Part D claims and 47 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify MEGHA AMBATI's credentials?
MEGHA AMBATI's NPI is 1083849111. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology