Dr. Ruth Nisha Krishnan, MD
- Medicare services, 2020
- 62
- Part D claims, 2020
- 515
- Industry payments
- $42
- Affiliated sites
- 1
- Medical group
- 1
- Practice address
- 4001 Worth St Baylor Scott And White Community Care, Dallas, TX 75246-1608
- Practice phone
- Call (214) 820-8665
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Healthtexas Provider Network - Dallas (4001 Worth St)
Primary care practice · Dallas, Texas
Find Dr. Krishnan's professional email, personal email and mobile number
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Dr. Ruth Nisha Krishnan is an internist in Dallas, Texas
Dr. Krishnan practices at Healthtexas Provider Network - Dallas (4001 Worth St) in Dallas, Texas.
Dr. Krishnan's NPI, 1265480685, was assigned on May 5, 2006. Dr. Krishnan graduated from University of Tennessee Health Science Center College of Medicine - Memphis in 2002. Dr. Krishnan holds Texas license N6438.
- NPI
- 1265480685NPI Registry (opens in a new tab)
- NPI enumeration date
- May 5, 2006
- NPI status
- Active
- Practice phone
- (214) 820-8665
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Medical school graduation
- 2002
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ruth Nisha Krishnan practices at Healthtexas Provider Network - Dallas (4001 Worth St) in Dallas, Texas
Dr. Krishnan's primary practice is Healthtexas Provider Network - Dallas (4001 Worth St), at 4001 Worth St Baylor Scott And White Community Care, Dallas, TX 75246-1608. The practice phone is (214) 820-8665.
- Healthtexas Provider Network - Dallas (4001 Worth St)4001 Worth St Baylor Scott And White Community Care, Dallas, TX 75246-1608Phone(214) 820-8665
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ruth Nisha Krishnan is affiliated with 1 site of care and 1 medical group
Dr. Krishnan's primary practice is Healthtexas Provider Network - Dallas (4001 Worth St) in Dallas, Texas. The medical group on file is HealthTexas Provider Network (HTPN).
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Ruth Nisha Krishnan's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Krishnan practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Healthtexas Provider Network - Dallas (4001 Worth St) | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Ruth Nisha Krishnan is one of 8,437 internists in Texas
Internal medicine is Dr. Krishnan's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Krishnan is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Krishnan's licenses on file in 2 states: Texas and Tennessee.
Specialties and state licenses
- Internal medicine, TexasPrimary
- Tennessee license
Internists near Dr. Krishnan
Counts of internists 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. Ruth Nisha Krishnan billed Medicare for 62 services in 2020
CMS data shows 62 Medicare services from Dr. Krishnan across 3 procedure codes in 2020. Medicare paid $956 for them. Every service was in an office.
Dr. Krishnan's Medicare services by type, 2019 to 2020
- 2019
- 2020
- Office and hospital visits
- 2019: 692020: 3352%
- Surgery
- 2019: 412020: 2929%
- Lab and pathology
- 2019: 742020: 0100%
- Other services
- 2019: 142020: 0100%
Dr. Krishnan compared with the Texas median for internists, 2020
- Dr. Krishnan
- Texas median
- Medicare services
- 62vs 53988% below
- Part D claims
- 515vs 28978% above
Medians across 7,794 internists in Texas with Dmand AI profiles that report each measure.
Dr. Krishnan's most billed Medicare procedure codes, 2020
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. Krishnan and other internists in Texas.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ruth Nisha Krishnan's patients have a median age of 55
Across all payers, Dmand AI patient panel data puts Dr. Krishnan's median patient age at 55, with 34% women.
Dr. Krishnan's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 55
Patient panel by sex, all payers
- Women34%
- Men66%
Source: Dmand AI Patient Panel Data
Dr. Ruth Nisha Krishnan wrote 515 Medicare Part D claims in 2020
In 2020, Dr. Krishnan wrote 515 Medicare Part D claims. They cover 20 drugs, with $11,011 in total drug cost. In 2019, CMS named 589 claims across 23 drugs.
Dr. Krishnan's most prescribed drugs by claims, 2020
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2019 to 2020
- 2019
- 2020
- Claims for drugs CMS names
- 2019: 5892020: 51513%
Drugs named by CMS: 20 in 2020, 23 in 2019.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
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Dr. Ruth Nisha Krishnan received $42 in industry payments from 2016 to 2021
CMS Open Payments shows 3 general payments to Dr. Krishnan from 3 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. Ocular Therapeutix, Inc. paid the most, $15.
General payments to Dr. Krishnan by program year, 2016 to 2021
Companies that paid Dr. Krishnan the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Ruth Nisha Krishnan graduated from University of Tennessee Health Science Center College of Medicine - Memphis
Dr. Krishnan graduated from University of Tennessee Health Science Center College of Medicine - Memphis in 2002.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Sources for Dr. Ruth Nisha Krishnan'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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| 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 Data |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (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 |
| 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. Ruth Nisha Krishnan
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. Ruth Nisha Krishnan's NPI number?
Dr. Ruth Nisha Krishnan's NPI number is 1265480685. It was assigned on May 5, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Ruth Nisha Krishnan?
Dr. Ruth Nisha Krishnan is an internist in Dallas, Texas. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Ruth Nisha Krishnan practice?
Dr. Krishnan practices at 4001 Worth St Baylor Scott And White Community Care, Dallas, TX 75246-1608. Dr. Krishnan's primary practice is Healthtexas Provider Network - Dallas (4001 Worth St) in Dallas, Texas.
What is Dr. Ruth Nisha Krishnan's office phone number?
The practice phone on file for Dr. Krishnan is (214) 820-8665.
What is Dr. Ruth Nisha Krishnan's medical license number?
Dr. Krishnan holds Texas license N6438, one of the licenses on file in 2 states.
Which states has Dr. Ruth Nisha Krishnan been licensed in?
Dmand AI has state licenses on file for Dr. Krishnan in Texas (2010 to 2026) and Tennessee.
What medical group is Dr. Ruth Nisha Krishnan part of?
Dr. Krishnan is linked to HealthTexas Provider Network (HTPN).
Does Dr. Ruth Nisha Krishnan accept Medicare?
Yes. CMS data shows Dr. Krishnan billed Medicare for 62 services in 2020.
Is Dr. Ruth Nisha Krishnan board certified?
Yes. Dr. Krishnan is board certified in internal medicine by the American Board of Internal Medicine.
What services does Dr. Ruth Nisha Krishnan bill to Medicare?
In 2020, Dr. Krishnan's most billed Medicare services were surgery: heart and blood vessels (36415), care management and other visits (99442) and office visit, established patient (99213).
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Where did Dr. Ruth Nisha Krishnan go to medical school?
Dr. Krishnan graduated from University of Tennessee Health Science Center College of Medicine - Memphis in 2002.
What drugs does Dr. Ruth Nisha Krishnan prescribe most?
In 2020 Medicare Part D data, Dr. Krishnan's most prescribed drugs by claims were Atorvastatin Calcium, Lisinopril and Metformin HCl.
Has Dr. Ruth Nisha Krishnan received payments from drug or device companies?
CMS Open Payments shows $42 in general payments to Dr. Krishnan from 3 companies from 2016 to 2021. The largest total came from Ocular Therapeutix, Inc.
How long has Dr. Ruth Nisha Krishnan been practicing?
Dr. Krishnan graduated from medical school in 2002, 24 years ago.
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