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Dr. Ramachandra R. Sista, MD
NPI1083740252PAC ID8628095551
- Medicare services, 2024
- 484
- Medicare patients, 2024
- 157
- Part D claims, 2024
- 3,704
- Publications
- 4
- MIPS score, 2024
- 83
- Practice address
- 10515 W Santa Fe Dr, Sun City, AZ 85351
- Practice phone
- Call (602) 747-4000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Banner Alzheimer's Institute
Sun City, Arizona
Find Dr. Sista's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Ramachandra R. Sista is a pulmonologist in Sun City, Arizona
Dr. Sista practices at Banner Alzheimer's Institute in Sun City, Arizona.
Dr. Sista's NPI, 1083740252, was assigned on February 24, 2007. Dr. Sista holds Arizona license 50249.
NPI and contact details
- NPI
- 1083740252NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628095551
- NPI enumeration date
- February 24, 2007
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (602) 747-4000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ramachandra R. Sista practices at Banner Alzheimer's Institute in Sun City, Arizona
Dr. Sista's primary practice is Banner Alzheimer's Institute, at 10515 W Santa Fe Dr, Sun City, AZ 85351 in Maricopa County. The practice phone is (602) 747-4000.
- Banner Alzheimer's Institute10515 W Santa Fe Dr, Sun City, AZ 85351 · Maricopa CountyPhone(602) 747-4000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ramachandra R. Sista is affiliated with 7 sites of care and 4 medical groups
Dr. Sista's primary practice is Banner Alzheimer's Institute in Sun City, Arizona. Dr. Sista is also affiliated with Banner Boswell Medical Center. The medical group on file is Banner Medical Group (BMG). Dmand AI also links Dr. Sista to 5 more hospitals and 3 medical groups, each named with a free account.
Banner Alzheimer's InstitutePrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ramachandra R. Sista's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sista practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Banner Alzheimer's Institute | Available with a free account |
| +6 more sites and 3 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ramachandra R. Sista is one of 255 pulmonologists in Arizona
Pulmonary disease is Dr. Sista's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dmand AI has Dr. Sista's licenses on file in 2 states: Arizona and California.
Specialties and state licenses
- Pulmonary disease, ArizonaPrimary
- California license
Pulmonologists near Dr. Sista
Counts of pulmonologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Ramachandra R. Sista billed Medicare for 484 services in 2024
CMS data shows 484 Medicare services from Dr. Sista across 9 procedure codes in 2024, for 157 Medicare patients. Medicare paid $31,699 for them.
Medicare services, 2024484
Medicare patients157
Paid by Medicare$31,699
Procedure codes9
Dr. Sista's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1162024: 310167%
- Tests and treatments
- 2023: 1412024: 17423%
Where Dr. Sista's Medicare services took place, 2024
- In an office153%
- In a facility46997%
Dr. Sista compared with the Arizona median for pulmonologists, 2024
- Dr. Sista
- Arizona median
- Medicare services
- 484vs 77938% below
- Medicare patients
- 157vs 31250% below
- Part D claims
- 3,295vs 3788.7 times
Medians across 246 pulmonologists in Arizona with Dmand AI profiles that report each measure.
Dr. Sista's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Sista and other pulmonologists in Arizona.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ramachandra R. Sista treated 157 Medicare patients in 2024, average age 70
CMS counts 157 Medicare patients who saw Dr. Sista in 2024. The largest group is 65 to 74, with 68 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% are also on Medicaid. Their average risk score is 2.78, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Sista's median patient age at 65, with 53% women.
Medicare patients, 2024157
Average age70
Average risk score2.78
Also on Medicaid23%
Dr. Sista's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Sista's Medicare patients by sex, 2024
- Women7749%
- Men8051%
Chronic conditions among Dr. Sista's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- COPD57%
- Heart failure57%
- Ischemic heart disease51%
- Chronic kidney disease46%
- Diabetes45%
- Arthritis44%
Share of Medicare patients with each condition. A patient can have several.
Dr. Sista's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 65
Patient panel by sex, all payers
- Women53%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ramachandra R. Sista wrote 3,704 Medicare Part D claims in 2024
In 2024, Dr. Sista wrote 3,704 Medicare Part D claims for 149 patients. 81% of them were for generic drugs. CMS names the drug for 3,295 of them, across 64 drugs with 11 or more claims each, at $5,740,169 in total drug cost. In 2023, CMS named 3,497 claims across 70 drugs.
Part D claims, 20243,704
Drugs named by CMS64
Total drug cost$5.7M
Part D patients149
Dr. Sista's Part D claims by kind of drug, 2024
- Generic2,997 claims81%
- Brand-name689 claims19%
- Other18 claims0%
Dr. Sista's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Sista's Part D claims, 2024
- Opioids0%14 of 3,704 claims
- Antibiotics12%441 of 3,704 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3,4972024: 3,2956%
Drugs named by CMS: 64 in 2024, 70 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Ramachandra R. Sista scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Sista for performance year 2024, reported as part of a group. Dr. Sista accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Sista as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Sista's MIPS scores, performance year 2024
- 83of 100Final score
- 69.8of 100Quality
- 98of 100Promoting Interoperability
- 40of 100Improvement Activities
- 68of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Ramachandra R. Sista has 4 publications on record
Dmand AI links 4 papers to Dr. Sista, published from 2018 to 2025. Dr. Sista's most frequent co-authors are Ashley Lauren Garrett, MD, Tony N. Hodges, MD and Dawn E. Jaroszewski, MD.
Papers4
Years published2018 to 2025
Dr. Sista's papers by year, 2018 to 2025
Dr. Sista's most frequent co-authors
- Ashley Lauren Garrett, MD1 shared paper
- Tony N. Hodges, MD1 shared paper
- Dawn E. Jaroszewski, MD1 shared paper
Recent publications by Dr. Sista
Biochem Biophys Res Commun
Adipose TissueCattleCell Culture Techniques
See who Dr. Sista researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sista works with, so you can find a warm path to the right pulmonologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ramachandra R. Sista received $4,825 in industry payments from 2018 to 2025
CMS Open Payments shows 169 general payments to Dr. Sista from 36 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 96% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $789.
General payments to Dr. Sista by program year, 2018 to 2025
General payments to Dr. Sista by kind, 2018 to 2025
$4.8Kin total
- Food and beverage$4,64596%
- Education$1804%
Companies that paid Dr. Sista the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Ramachandra R. Sista's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Ramachandra R. Sista
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Ramachandra R. Sista's NPI number?
Dr. Ramachandra R. Sista's NPI number is 1083740252. It was assigned on February 24, 2007, and it is active in the NPI Registry.
What kind of doctor is Dr. Ramachandra R. Sista?
Dr. Ramachandra R. Sista is a pulmonologist in Sun City, Arizona. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Ramachandra R. Sista practice?
Dr. Sista practices at 10515 W Santa Fe Dr, Sun City, AZ 85351. Dr. Sista's primary practice is Banner Alzheimer's Institute in Sun City, Arizona. Dmand AI also links Dr. Sista to 5 hospitals and 3 medical groups.
What is Dr. Ramachandra R. Sista's office phone number?
The practice phone on file for Dr. Sista is (602) 747-4000.
What is Dr. Ramachandra R. Sista's medical license number?
Dr. Sista holds Arizona license 50249, one of the licenses on file in 2 states.
Which states has Dr. Ramachandra R. Sista been licensed in?
Dmand AI has state licenses on file for Dr. Sista in Arizona and California.
Which hospitals is Dr. Ramachandra R. Sista affiliated with?
Dr. Sista is affiliated with Banner Boswell Medical Center. Dmand AI links Dr. Sista to 5 more hospitals.
What medical group is Dr. Ramachandra R. Sista part of?
Dr. Sista is linked to Banner Medical Group (BMG). Dmand AI links Dr. Sista to 3 more medical groups.
Does Dr. Ramachandra R. Sista accept Medicare?
Yes. CMS data shows Dr. Sista billed Medicare for 484 services in 2024, and Dr. Sista accepts Medicare assignment.
Does Dr. Ramachandra R. Sista offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Sista as offering telehealth services.
Show 8 more questionsShow fewer questions
What is Dr. Ramachandra R. Sista's MIPS score?
Dr. Sista's MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
How many Medicare patients does Dr. Ramachandra R. Sista see?
CMS counts 157 Medicare patients who saw Dr. Sista in 2024, with an average age of 70.
What services does Dr. Ramachandra R. Sista bill to Medicare?
In 2024, Dr. Sista's most billed Medicare services were hospital inpatient care (99233), lung function service (94010) and office visit, established patient (99215).
What drugs does Dr. Ramachandra R. Sista prescribe most?
In 2024 Medicare Part D data, Dr. Sista's most prescribed drugs by claims were Azithromycin, Prednisone and Sulfamethoxazole-Trimethoprim.
Has Dr. Ramachandra R. Sista received payments from drug or device companies?
CMS Open Payments shows $4,825 in general payments to Dr. Sista from 36 companies from 2018 to 2025. The largest total came from Boehringer Ingelheim Pharmaceuticals, Inc.
How long has Dr. Ramachandra R. Sista been practicing?
Dr. Sista graduated from medical school in 1991, 35 years ago.
Does Dr. Ramachandra R. Sista do research?
Dmand AI links 4 publications to Dr. Sista, published from 2018 to 2025.
Who does Dr. Ramachandra R. Sista publish with?
Dr. Sista's most frequent co-authors are Ashley Lauren Garrett, MD (1 shared paper), Tony N. Hodges, MD (1 shared paper) and Dawn E. Jaroszewski, MD (1 shared paper).
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