Dr. Narayana Sriman Ambati, MD
- Medicare services, 2024
- 9,483
- Medicare patients, 2024
- 917
- Part D claims, 2024
- 2,607
- MIPS score, 2024
- 82
- Hospital affiliations
- 4
- Practice address
- 7014 N Whitney Ave Ste B, Fresno, CA 93720
- Practice phone
- Call (559) 321-2898
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Chestnut Surgery Center
Surgery Center - Not Medicare-Certified · Fresno, California
Find Dr. Ambati's professional email, personal email and mobile number
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Dr. Narayana Sriman Ambati is a urologist in Fresno, California
Dr. Ambati practices at Chestnut Surgery Center in Fresno, California.
Dr. Ambati's NPI, 1174528178, was assigned on June 16, 2005. Dr. Ambati graduated from Rangaraya Medical College NTR in 1965. Dr. Ambati holds California license C416810.
- NPI
- 1174528178NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6507804283
- NPI enumeration date
- June 16, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (559) 321-2898
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 84
- Medical school graduation
- 1965
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Narayana Sriman Ambati practices at Chestnut Surgery Center in Fresno, California
Dr. Ambati's primary practice is Chestnut Surgery Center, at 7014 N Whitney Ave Ste B, Fresno, CA 93720. The practice phone is (559) 321-2898.
- Chestnut Surgery Center7014 N Whitney Ave Ste B, Fresno, CA 93720Phone(559) 321-2898
Source: Dmand AI Affiliation Data
Dr. Narayana Sriman Ambati is affiliated with 6 sites of care and 2 medical groups
Dr. Ambati's primary practice is Chestnut Surgery Center in Fresno, California. Dr. Ambati is also affiliated with Community Regional Medical Center. The medical group on file is Inspire Health Medical Group. Dmand AI also links Dr. Ambati to 3 more hospitals, 1 ambulatory surgery center and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Narayana Sriman Ambati's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ambati practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Chestnut Surgery Center | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Narayana Sriman Ambati is one of 1,395 urologists in California
Urology is Dr. Ambati's primary specialty in the NPI Registry, under taxonomy code 208800000X. Dr. Ambati is board certified in urology by the American Board of Urology. Dmand AI has Dr. Ambati's licenses on file in 3 states: California, Iowa and Illinois.
Specialties and state licenses
- Urology, CaliforniaPrimary
- Iowa license
- Illinois license
Clinical focus
Dmand AI lists bladder disease, enlarged prostate, erectile dysfunction, kidney cysts, kidney removal surgery, kidney stone disease, pelvic prolapse and prostate cancer among the conditions Dr. Ambati treats.
Urologists near Dr. Ambati
Counts of urologists 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. Narayana Sriman Ambati billed Medicare for 9,483 services in 2024
CMS data shows 9,483 Medicare services from Dr. Ambati across 32 procedure codes in 2024, for 917 Medicare patients. Medicare paid $304,875 for them. Every service was in an office.
Dr. Ambati's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Other services
- 2023: 2,9002024: 3,21011%
- Office and hospital visits
- 2023: 1,4472024: 2,06843%
- Surgery
- 2023: 1,6522024: 1,95518%
- Lab and pathology
- 2023: 1,3392024: 98427%
- Drugs given in the office
- 2023: 1,4182024: 85340%
- Imaging
- 2023: 3212024: 24225%
- Tests and treatments
- 2023: 992024: 17173%
Dr. Ambati compared with the California median for urologists, 2024
- Dr. Ambati
- California median
- Medicare services
- 9,483vs 1,0509.0 times
- Medicare patients
- 917vs 3462.7 times
- Part D claims
- 2,452vs 6423.8 times
Medians across 1,310 urologists in California with Dmand AI profiles that report each measure.
Dr. Ambati'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. Narayana Sriman Ambati treated 917 Medicare patients in 2024, average age 75
CMS counts 917 Medicare patients who saw Dr. Ambati in 2024. The largest group is 65 to 74, with 397 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 22% are also on Medicaid. Their average risk score is 1.27, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ambati's median patient age at 69, with 23% women.
Dr. Ambati's Medicare patients by age, 2024
Dr. Ambati's Medicare patients by sex, 2024
- Women18420%
- Men73380%
Chronic conditions among Dr. Ambati's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes42%
- Arthritis40%
- Ischemic heart disease39%
- Chronic kidney disease34%
- Cancer28%
- Heart failure20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ambati's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 69
Patient panel by sex, all payers
- Women23%
- Men76%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Narayana Sriman Ambati wrote 2,607 Medicare Part D claims in 2024
In 2024, Dr. Ambati wrote 2,607 Medicare Part D claims for 565 patients. 90% of them were for generic drugs. CMS names the drug for 2,452 of them, across 29 drugs with 11 or more claims each, at $879,940 in total drug cost. In 2023, CMS named 1,968 claims across 22 drugs.
Dr. Ambati's Part D claims by kind of drug, 2024
- Generic2,357 claims90%
- Brand-name and other250 claims10%
Dr. Ambati'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. Ambati's Part D claims, 2024
- Antibiotics12%311 of 2,607 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: 1,9682024: 2,45225%
Drugs named by CMS: 29 in 2024, 22 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. Narayana Sriman Ambati scored 82 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 82 out of 100 for Dr. Ambati for performance year 2024, reported as part of a group. Dr. Ambati accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Ambati as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Ambati's MIPS scores, performance year 2024
- 82of 100Final score
- 70.9of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 70of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Prostate resection: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Narayana Sriman Ambati received $7,145 in industry payments from 2016 to 2025
CMS Open Payments shows 349 general payments to Dr. Ambati from 45 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 96% of the total. Janssen Pharmaceuticals, Inc paid the most, $1,034.
General payments to Dr. Ambati by program year, 2016 to 2025
General payments to Dr. Ambati by kind, 2016 to 2025
- Food and beverage$6,82596%
- Education$2654%
- Gifts$561%
Companies that paid Dr. Ambati the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Narayana Sriman Ambati graduated from Rangaraya Medical College NTR
Dr. Ambati graduated from Rangaraya Medical College NTR in 1965.
- Medical school
- Board certified in urology
Source: Dmand AI Professional Profile Data
Dr. Narayana Sriman Ambati accepts plans from 8 insurance carriers
Dr. Ambati is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Humana. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- Humana
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- Molina
Plan types Dr. Ambati accepts, by number of carriers
- Medicare8
- PPO6
- HMO3
- POS2
- EPO1
Source: Dmand AI Insurance Network Data
Sources for Dr. Narayana Sriman Ambati'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| 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. Narayana Sriman Ambati
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. Narayana Sriman Ambati's NPI number?
Dr. Narayana Sriman Ambati's NPI number is 1174528178. It was assigned on June 16, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Narayana Sriman Ambati?
Dr. Narayana Sriman Ambati is a urologist in Fresno, California. The primary specialty in the NPI Registry is Urology Physician (taxonomy code 208800000X).
Where does Dr. Narayana Sriman Ambati practice?
Dr. Ambati practices at 7014 N Whitney Ave Ste B, Fresno, CA 93720. Dr. Ambati's primary practice is Chestnut Surgery Center in Fresno, California. Dmand AI also links Dr. Ambati to 3 hospitals, 1 ambulatory surgery center and 1 medical group.
What is Dr. Narayana Sriman Ambati's office phone number?
The practice phone on file for Dr. Ambati is (559) 321-2898.
What is Dr. Narayana Sriman Ambati's medical license number?
Dr. Ambati holds California license C416810, one of the licenses on file in 3 states.
Which states has Dr. Narayana Sriman Ambati been licensed in?
Dmand AI has state licenses on file for Dr. Ambati in California (1984 to 2026), Iowa (1976 to 1987) and Illinois (1984 to 1987).
Which hospitals is Dr. Narayana Sriman Ambati affiliated with?
Dr. Ambati is affiliated with Community Regional Medical Center. Dmand AI links Dr. Ambati to 3 more hospitals.
What medical group is Dr. Narayana Sriman Ambati part of?
Dr. Ambati is linked to Inspire Health Medical Group. Dmand AI links Dr. Ambati to 1 more medical group.
Does Dr. Narayana Sriman Ambati accept Medicare?
Yes. CMS data shows Dr. Ambati billed Medicare for 9,483 services in 2024, and Dr. Ambati accepts Medicare assignment.
Does Dr. Narayana Sriman Ambati offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Ambati as offering telehealth services.
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What is Dr. Narayana Sriman Ambati's MIPS score?
Dr. Ambati's MIPS final score for performance year 2024 is 82 out of 100, reported as part of a group.
How many Medicare patients does Dr. Narayana Sriman Ambati see?
CMS counts 917 Medicare patients who saw Dr. Ambati in 2024, with an average age of 75.
Is Dr. Narayana Sriman Ambati board certified?
Yes. Dr. Ambati is board certified in urology by the American Board of Urology.
What services does Dr. Narayana Sriman Ambati bill to Medicare?
In 2024, Dr. Ambati's most billed Medicare services were medicare temporary code (Q9967), surgery: urinary system (51798) and office visit, established patient (99214).
Where did Dr. Narayana Sriman Ambati go to medical school?
Dr. Ambati graduated from Rangaraya Medical College NTR in 1965.
What drugs does Dr. Narayana Sriman Ambati prescribe most?
In 2024 Medicare Part D data, Dr. Ambati's most prescribed drugs by claims were Finasteride, Tamsulosin HCl and Nitrofurantoin Mono-Macro.
Has Dr. Narayana Sriman Ambati received payments from drug or device companies?
CMS Open Payments shows $7,145 in general payments to Dr. Ambati from 45 companies from 2016 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Narayana Sriman Ambati been practicing?
Dr. Ambati graduated from medical school in 1965, 61 years ago.
What insurance does Dr. Narayana Sriman Ambati accept?
Dr. Ambati is in network with 8 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Humana. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.
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