NPI registry status
Active
2026 NPPES data Internal Medicine Physician NPI 1659631117
Verify on CMS → Zoya Chittireddy
Internal Medicine Physician in Austin, Texas.
This profile is drawn from the federal National Provider Identifier Registry (CMS NPPES), which lists more than 7 million U.S. healthcare providers - including 172,737 in Internal Medicine Physician, and covers specialty classification, practice address, and Medicare Part D prescribing data when reported. According to CMS, every field reflects the provider's official federal registration, see our methodology.
Federal data, no proprietary rating.
We show these CMS records as-is - no composite score, no star rating, no editorial opinion layered on top.
Prescribing volume
433
Medicare Part D claims · 184 beneficiaries · Internal Medicine Physician avg: 3K
Industry payments
$35.48
1 payments · CMS Open Payments (Sunshine Act)
What the federal data shows
Zoya Chittireddy filed 433 Medicare Part D claims in 2023 as an Internal Medicine Physician in Austin, Texas.
- 433
- Part D claims, 2023
- Likely
- board-certified (heuristic)
- ≥62nd
- pct by Part D claim volume (lower-bound band)
Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) - no proprietary rating or editorial opinion is applied.
CMS NPPES provider registry desk
NPI 1659631117 · Internal Medicine Physician
NPI-10 · ENUM-MID · TAX-MEGA · RX-LIGHT · BOOK-MID · PHOTO-ENUM
- NPI-10 1659631117
- ENUM-MID 2012
- TAX-MEGA 173K Internal Medicine
- RX-LIGHT 433
- BOOK-MID 10,926 in Texas
- PHOTO-ENUM Rafael Favela · 2012
Zoya Chittireddy's Medicare Part D volume vs every U.S. prescriber
Total Medicare Part D claims, 2023, across all CMS prescribers nationally
433 ≥ 62nd percentile 62% of 1,370,886 prescribers are in lower value bands
Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
The percentile is a conservative 100-claim band: it counts only prescribers in lower claim-volume bands. Medicare Part D claim volume is activity context, not a quality measure or recommendation. See methodology § corpus placement.
Source CMS Medicare Part D Prescriber Public Use File · 2023
✓
Board certification likely (heuristic, not verified)
Zoya Chittireddy practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + 1 hospital affiliation - signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).
What does the federal data show about Zoya Chittireddy?
Quality data not reportedPrimary specialty
Internal Medicine Physician
Medicare Part D claims
433 84% vs specialty avg
Specialty distribution in Texas
How Internal Medicine Physician compares to other specialties among Texas providers
Board certification
Not published by CMS
CMS does not publish a per-provider board-certification field in NPPES. PlainDoctor does not have a reliable per-specialty certification rate to show for Internal Medicine Physician. Verify directly:
How MIPS and board certification work
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).
Practice Address
Provider Details
| NPI | 1659631117 |
|---|---|
| Specialty | Internal Medicine Physician |
| Gender | Female |
| NPI Issued | 05/17/2012 |
Hospital and facility affiliations
Facilities where Zoya Chittireddy 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.
Usacs Integrated Acute Care Services OF Texas, PLLC
Cedar Park, 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 Zoya Chittireddy. Source: openpaymentsdata.cms.gov.
Total received
$35
Largest payer
Janssen 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 - Texas TMB 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 ~77K Texas medical licensees in 2023 - they are NOT specific to Zoya Chittireddy. To verify Zoya Chittireddy's current license status, search the TMB public license lookup directly, or check the Federation of State Medical Boards (FSMB) verification service.
344
Total board actions, Texas 2023
Across 334 cases
4.47
Actions per 1,000 licensees
Texas statewide rate
probation
Most common action type
94 cases
TMB 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 Texas 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.
433
Total Claims
$13K
Total Drug Cost
184
Medicare Beneficiaries
Prescribing Breakdown
- 30-Day Fills
- 443
- Total Day Supply
- 7,107
- Generic Drug Cost
- $8K
- Opioid Claims
- 38 (8.8% rate)
- Antibiotic Claims
- 97
Patient Demographics
- Average Patient Age
- 73.9 years
- Avg HCC Risk Score
- 2.28
- Gender Split
- 59% female / 41% male
- Age Distribution
- <65: 19, 65-74: 74, 75-84: 65, 85+: 26
Top Prescribed Drugs (Medicare Part D)
Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.
What Zoya Chittireddy prescribes most
Top Medicare Part D drugs by claim count, 2023
- Pantoprazole Sodium
Pantoprazole Sodium
43 claims
- Amoxicillin-Clavul…
Amoxicillin-Clavulanate Potass
42 claims
- Hydrocodone-Acetam…
Hydrocodone-Acetaminophen
32 claims
- Atorvastatin Calcium
Atorvastatin Calcium
23 claims
- Levofloxacin
Levofloxacin
21 claims
- Prednisone
Prednisone
18 claims
- Furosemide 15
Furosemide
15 claims
- Amlodipine Besylate 14
Amlodipine Besylate
14 claims
| Drug | Claims |
|---|---|
| Pantoprazole Sodium | 43 |
| Amoxicillin-Clavulanate Potass Amoxicillin/Potassium Clav | 42 |
| Hydrocodone-Acetaminophen Hydrocodone/Acetaminophen | 32 |
| Atorvastatin Calcium | 23 |
| Levofloxacin | 21 |
| Prednisone | 18 |
| Furosemide | 15 |
| Amlodipine Besylate | 14 |
| Albuterol Sulfate Hfa Albuterol Sulfate | 12 |
| Clopidogrel Clopidogrel Bisulfate | 12 |
* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.
Internal Medicine Physician Overview
How Zoya Chittireddy fits within the Internal Medicine Physician landscape nationally.
172,737
Internal Medicine Physician Providers in US
56
States with Internal Medicine Physician
2,716
Avg Claims per Provider
Zoya Chittireddy's 433 claims are below the specialty average of 2,716.
Nationwide Internal Medicine Physician peers with similar MIPS or enrollment year
Two federal-record peer sets for Chittireddy, both outside Texas so the neighborhoods are not geographic containment.
Same NPPES enumeration year (2012)
Same-specialty clinicians who entered the NPI registry in the same calendar year, outside this state.
Nearby Internal Medicine Physician Providers in Texas
Other clinicians with the same primary specialty enrolled in Texas, drawn from the same CMS NPPES roster as Chittireddy.
One of 10,926 Internal Medicine Physician providers enrolled in Texas, 5 are shown here.
Dr. Muhammad A. Sattar
MD
Dallas, TX
Anunaya Aashish
Denton, TX
Dr. Queenie Ann Abad
M.D.
San Antonio, TX
Dr. Fuad Abaleka
M.D
Lubbock, TX
Dr. Carol Abalihi
M.D.
El Paso, TX
Compare Internal Medicine Physician nationally: see state-by-state distribution →
Frequently Asked Questions
What is Zoya Chittireddy's specialty? ▼
Zoya Chittireddy specializes in Internal Medicine Physician and practices in Austin, Texas.
How much does Zoya Chittireddy prescribe under Medicare Part D? ▼
In 2023, Zoya Chittireddy wrote 433 Medicare Part D claims totaling $13K in drug costs for 184 beneficiaries.
Where is Zoya Chittireddy located? ▼
Zoya Chittireddy is located at 7622 YAUPON DR, Austin, TX, 78759. Phone: (973) 706-5988.
What is Zoya Chittireddy's NPI number? ▼
Zoya Chittireddy's National Provider Identifier (NPI) is 1659631117, issued on 05/17/2012.
Does Zoya Chittireddy prescribe opioids? ▼
Yes, Zoya Chittireddy had 38 opioid claims in 2023 with an opioid prescribing rate of 8.8%.
How many Internal Medicine Physician providers are there in the US? ▼
There are 172,737 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.
What drugs does Zoya Chittireddy prescribe most often? ▼
Based on 2023 Medicare Part D data, Zoya Chittireddy's most frequently prescribed drugs include Pantoprazole Sodium, Amoxicillin-Clavulanate Potass, Hydrocodone-Acetaminophen. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does Zoya Chittireddy accept Medicare? ▼
Zoya Chittireddy appears in CMS Medicare data with 433 Part D claims and 184 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify Zoya Chittireddy's credentials? ▼
Zoya Chittireddy's NPI is 1659631117. 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
View source datasets and methodology notes
- 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.
- 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
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of May 2026.