Dr. Sreenivasa R. Nattam, MD
- Medicare services, 2024
- 39,435
- Medicare patients, 2024
- 534
- Part D claims, 2024
- 1,358
- MIPS score, 2024
- 83
- Hospital affiliations
- 5
- Practice address
- 6610 Mutual Dr, Fort Wayne, IN 46825
- Practice phone
- Call (260) 484-8830
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Fort Wayne Medical Oncology and Hematology, Inc
Fort Wayne, Indiana
Find Dr. Nattam's professional email, personal email and mobile number
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Dr. Sreenivasa R. Nattam is a hematologist and oncologist in Fort Wayne, Indiana
Dr. Nattam practices at Fort Wayne Medical Oncology and Hematology, Inc in Fort Wayne, Indiana.
Dr. Nattam's NPI, 1982606893, was assigned on August 10, 2005. Dr. Nattam holds Indiana license 01030857A.
- NPI
- 1982606893NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4789576281
- NPI enumeration date
- August 10, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (260) 484-8830
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 78
- Medical school graduation
- 1974
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Sreenivasa R. Nattam practices at Fort Wayne Medical Oncology and Hematology, Inc in Fort Wayne, Indiana
Dr. Nattam's primary practice is Fort Wayne Medical Oncology and Hematology, Inc, at 6610 Mutual Dr, Fort Wayne, IN 46825 in Allen County. The practice phone is (260) 484-8830.
- Fort Wayne Medical Oncology and Hematology, Inc6610 Mutual Dr, Fort Wayne, IN 46825 · Allen CountyPhone(260) 484-8830
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Sreenivasa R. Nattam is affiliated with 8 sites of care and 2 medical groups
Dr. Nattam's primary practice is Fort Wayne Medical Oncology and Hematology, Inc in Fort Wayne, Indiana. Dr. Nattam is also affiliated with Parkview Regional Medical Center. The medical group on file is Zangmeister Cancer Center. Dmand AI also links Dr. Nattam to 4 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Sreenivasa R. Nattam's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nattam practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Fort Wayne Medical Oncology and Hematology, Inc | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Sreenivasa R. Nattam is one of 224 hematologists and oncologists in Indiana
Hematology and oncology is Dr. Nattam's primary specialty in the NPI Registry, under taxonomy code 207RH0003X. Dr. Nattam is licensed in Indiana.
Specialties and state licenses
- Hematology and oncology, IndianaPrimary
Hematologists and oncologists near Dr. Nattam
Counts of hematologists and oncologists 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. Sreenivasa R. Nattam billed Medicare for 39,435 services in 2024
CMS data shows 39,435 Medicare services from Dr. Nattam across 29 procedure codes in 2024, for 534 Medicare patients. Medicare paid $682,768 for them. Every service was in an office.
Dr. Nattam's Medicare services by type, 2024
- Other services19,062
- Drugs given in the office18,094
- Tests and treatments1,313
- Office and hospital visits946
- Surgery20
Dr. Nattam compared with the Indiana median for hematologists and oncologists, 2024
- Dr. Nattam
- Indiana median
- Medicare services
- 39,435vs 76051.9 times
- Medicare patients
- 534vs 2642.0 times
- Part D claims
- 1,133vs 4232.7 times
Medians across 215 hematologists and oncologists in Indiana with Dmand AI profiles that report each measure.
Dr. Nattam'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Sreenivasa R. Nattam treated 534 Medicare patients in 2024, average age 74
CMS counts 534 Medicare patients who saw Dr. Nattam in 2024. The largest group is 65 to 74, with 251 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 10% are also on Medicaid. Their average risk score is 1.95, 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. Nattam's median patient age at 73, with 58% women.
Dr. Nattam's Medicare patients by age, 2024
Dr. Nattam's Medicare patients by sex, 2024
- Women31459%
- Men22041%
Chronic conditions among Dr. Nattam's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Cancer46%
- Arthritis44%
- Ischemic heart disease39%
- Chronic kidney disease38%
- Diabetes38%
- Mood disorders31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Nattam's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
Patient panel by sex, all payers
- Women58%
- Men40%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Sreenivasa R. Nattam wrote 1,358 Medicare Part D claims in 2024
In 2024, Dr. Nattam wrote 1,358 Medicare Part D claims for 256 patients. 65% of them were for generic drugs. CMS names the drug for 1,133 of them, across 34 drugs with 11 or more claims each, at $4,555,104 in total drug cost.
Dr. Nattam's Part D claims by kind of drug, 2024
- Generic882 claims65%
- Brand-name476 claims35%
Dr. Nattam'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. Nattam's Part D claims, 2024
- Opioids6%83 of 1,358 claims
- Antibiotics1%18 of 1,358 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
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. Sreenivasa R. Nattam 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. Nattam for performance year 2024, reported as part of a group. Dr. Nattam accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Nattam's MIPS scores, performance year 2024
- 83of 100Final score
- 86.5of 100Quality
- 81of 100Promoting Interoperability
- 40of 100Improvement Activities
- 61of 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. Sreenivasa R. Nattam received $18,214 in industry payments from 2024 to 2025
CMS Open Payments shows 249 general payments to Dr. Nattam from 45 drug and device companies from 2024 to 2025. Consulting fees make up the largest share, 36% of the total. Sobi, Inc paid the most, $2,487.
General payments to Dr. Nattam by program year, 2024 to 2025
General payments to Dr. Nattam by kind, 2024 to 2025
- Consulting fees$6,62436%
- Food and beverage$5,95433%
- Honoraria$3,25018%
- Device or supply loans$2,00011%
- Other$3872%
Companies that paid Dr. Nattam the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Sreenivasa R. Nattam's profile data
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Sreenivasa R. Nattam
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. Sreenivasa R. Nattam's NPI number?
Dr. Sreenivasa R. Nattam's NPI number is 1982606893. It was assigned on August 10, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Sreenivasa R. Nattam?
Dr. Sreenivasa R. Nattam is a hematologist and oncologist in Fort Wayne, Indiana. The primary specialty in the NPI Registry is Hematology & Oncology Physician (taxonomy code 207RH0003X).
Where does Dr. Sreenivasa R. Nattam practice?
Dr. Nattam practices at 6610 Mutual Dr, Fort Wayne, IN 46825. Dr. Nattam's primary practice is Fort Wayne Medical Oncology and Hematology, Inc in Fort Wayne, Indiana. Dmand AI also links Dr. Nattam to 4 hospitals, 2 group practices and clinics and 1 medical group.
What is Dr. Sreenivasa R. Nattam's office phone number?
The practice phone on file for Dr. Nattam is (260) 484-8830.
What is Dr. Sreenivasa R. Nattam's medical license number?
Dr. Nattam holds Indiana license 01030857A.
Which hospitals is Dr. Sreenivasa R. Nattam affiliated with?
Dr. Nattam is affiliated with Parkview Regional Medical Center. Dmand AI links Dr. Nattam to 4 more hospitals.
What medical group is Dr. Sreenivasa R. Nattam part of?
Dr. Nattam is linked to Zangmeister Cancer Center. Dmand AI links Dr. Nattam to 1 more medical group.
Does Dr. Sreenivasa R. Nattam accept Medicare?
Yes. CMS data shows Dr. Nattam billed Medicare for 39,435 services in 2024, and Dr. Nattam accepts Medicare assignment.
What is Dr. Sreenivasa R. Nattam's MIPS score?
Dr. Nattam'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. Sreenivasa R. Nattam see?
CMS counts 534 Medicare patients who saw Dr. Nattam in 2024, with an average age of 74.
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What services does Dr. Sreenivasa R. Nattam bill to Medicare?
In 2024, Dr. Nattam's most billed Medicare services were medicare temporary code (Q0138), injected or infused drug (J9271) and injected or infused drug (J1453).
What drugs does Dr. Sreenivasa R. Nattam prescribe most?
In 2024 Medicare Part D data, Dr. Nattam's most prescribed drugs by claims were Anastrozole, Eliquis and Prednisone.
Has Dr. Sreenivasa R. Nattam received payments from drug or device companies?
CMS Open Payments shows $18,214 in general payments to Dr. Nattam from 45 companies from 2024 to 2025. The largest total came from Sobi, Inc.
How long has Dr. Sreenivasa R. Nattam been practicing?
Dr. Nattam graduated from medical school in 1974, 52 years ago.
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