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Edit this profileAt a glance
- 6400 Fannin St, Suite 2500, Houston, TX 77030
About Dr. Nathan
Sriram S. Nathan, M.D. is a healthcare provider in Houston, TX specializing in internal medicine. Sriram is also listed as specializing in cardiovascular disease. Medicare claims data shows Sriram provided 1,131 services to 458 patients. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and evaluation of lower heart chamber assist device. This provider record is associated with NPI 1285602607.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (713) 704-4300
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
6400 FANNIN ST SUITE 2500
Houston, TX 77030
Conditions Commonly Evaluated or Treated
Within Internal Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Cancer Prevention
Cancer risk
Environmental health
- Asbestos Exposure
- Contaminated drinking water exposure
- Heat exhaustion and heat stroke
- Radon gas exposure
- Tick bite and Lyme disease risk
- Toxic Mold Exposure
- Wildfire smoke and air pollution exposure
- Workplace Chemical Exposure
General wellness
Heart health
Infectious Disease
Infectious disease
Kidney health
Lifestyle & wellness
Lifestyle health
Longevity
Metabolic & Lifestyle
Occupational health
Occupational Health
Rashes & allergy
Sexual Health
Sexual health
Substance use
Travel health
Wellness and energy
Workplace health
Most searched conditions
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Procedures & services
Addiction & habits
Cancer screening
Cancer Screening
Checkups & exams
Chronic illness
Diagnostics & screening
Environmental health
Fitness & body composition
Heart & Circulation
Heart & circulation
Heart health
Hospital-based procedures
Imaging referral
Immunizations
Infection & Microbiology Tests
Lifestyle & Prevention
Longevity
Lower endoscopy
Lungs & Breathing
Metabolic & Weight
Metabolic health
Occupational health
Occupational Health
Office Procedures
Preventive and evaluation
Preventive imaging
Preventive screening
Routine Blood Tests
Screening & labs
Screening and diagnostic testing
- Blood pressure screening
- Cancer screening and prevention planning
- Diabetes and prediabetes screening
- EKG
- Spirometry
Screenings & Diagnostics
Travel Health
Travel medicine
Wellness
Wellness & Screening
Workplace health
Skin growths
Sleep
Most searched procedures
Bones & Joints
Brain and nerves
Digestive
Exams & Consultations
Lab tests
Minor procedures
Office procedures
Pain management
Preventive & Routine Care
Sexual health
Procedures Most Often Billed to Medicare
1,131 services · 458 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Evaluation of lower heart chamber assist device | Treatment | 93750 |
112 | More than most peers in Internal Medicine |
| Evaluation of lower heart chamber assist device | Treatment | 93750 |
102 | More than most peers in Internal Medicine |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
42 | As often as other peers in Internal Medicine |
| Ultrasound of heart blood flow, valves and chambers | Treatment | 93320 |
26 | As often as other peers in Internal Medicine |
| Ultrasound of heart with probe in esophagus, with report | Treatment | 93312 |
26 | As often as other peers in Internal Medicine |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
21 | Less often than most peers in Internal Medicine |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
15 | As often as other peers in Internal Medicine |
| Insertion of tube in right heart chambers for measurement | Treatment | 93451 |
11 | Less often than most peers in Internal Medicine |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
500 | More often than most peers in Internal Medicine |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
180 | As often as other peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other internists in Houston 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1991 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Evaluation of lower heart chamber assist device 8
Providers in TX who bill this service to Medicare most often.
Common questions
What does Sriram S. Nathan specialize in?
Sriram S. Nathan is an internist in Houston, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Where is Sriram S. Nathan located?
Sriram S. Nathan is listed at 6400 Fannin St Suite 2500, Houston, TX 77030. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Sriram S. Nathan's phone number?
The number on file is (713) 704-4300. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Sriram S. Nathan?
Sriram S. Nathan's National Provider Identifier is 1285602607. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Sriram S. Nathan train?
Sriram S. Nathan attended Other, graduating in 1991. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Sriram S. Nathan have?
Sriram S. Nathan has 35 years experience. Calculated from a graduation year of 1991, reported in the CMS National Downloadable File.
CMS public data
What does Sriram S. Nathan do most often?
According to Medicare billing data, Sriram S. Nathan provides treatments such as evaluation of lower heart chamber assist device and ultrasound of heart with color-depicted blood flow, rate, direction and valve function, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Sriram S. Nathan's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Sriram S. Nathan. If this is you, claiming it is free.
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