Physician Profile
Mark H. Gardenswartz, M.D.
Unclaimed ProfileAbout Dr. Gardenswartz
Based in New York, NY, Mark H. Gardenswartz, M.D. is listed in the NPI registry under nephrology. Mark graduated from University of Colorado School of Medicine, Denver in 1975. Medicare claims data shows Mark provided 3,727 services to 1,546 patients. The services billed most often include visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient', insertion of needle into vein for collection of blood sample, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (212) 583-2930
- Email not available
Practice Locations
110 E 59TH ST
New York, NY 10022
Conditions Commonly Evaluated or Treated
Within Nephrology 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
Most searched conditions
Acid-base disorders
Anatomical conditions
Autoimmune conditions
Blood disorders
Blood pressure
Cysts and growths
Diabetes complications
Dialysis complications
Electrolyte disorders
Fluid retention
Genetic disorders
Hormone disorders
Infections
Inflammatory conditions
Kidney damage
Kidney failure
Kidney filter diseases
Lab abnormalities
Metabolic disorders
Multi-organ conditions
Structural kidney issues
Symptoms
Urine abnormalities
Urine symptoms
Vascular conditions
Vascular kidney issues
Procedures & services
Most searched procedures
Consultations
Diagnostic tests
Diagnostics
Dialysis
Dialysis access
- Dialysis Access Physical Exam
- Dialysis Catheter Removal
- Dialysis Fistula Repair
- Temporary Dialysis Line Placement
Diet and nutrition
Imaging
Infusions
Interventional procedures
Lab tests
- 24-hour urine test
- Comprehensive Metabolic Panel
- Kidney Function Blood Test
- Parathyroid hormone monitoring
- Urine protein check
- Urine sediment test
Medication management
- Active Vitamin D Therapy
- Resistant Blood Pressure Medication Adjustment
- Steroid Therapy For Kidney Inflammation
Medication therapy
- Acid reducer treatment for kidneys
- Phosphate binder therapy
- Potassium lowering treatment
- Red blood cell booster injections
- Water pill adjustment
Patient education
Prevention
Procedures
Specialized therapies
Supportive care
Surgical procedures
Transplant care
Vascular access
Procedures Most Often Billed to Medicare
3,727 services · 1,546 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
901 | More than most peers in Nephrology |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
105 | More often than most peers in Nephrology |
| Influenza vaccine split virus, preservative free | Treatment | 90662 |
69 | More often than most peers in Nephrology |
| Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient' | Billing code | G2211 |
997 | More than most peers in Nephrology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
879 | More than most peers in Nephrology |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
356 | More often than most peers in Nephrology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
120 | More often than most peers in Nephrology |
| Telephone medical discussion with physician, 11-20 minutes | Office visit | 99442 |
88 | More often than most peers in Nephrology |
| Administration of influenza virus vaccine | Billing code | G0008 |
71 | More often than most peers in Nephrology |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
40 | As often as other peers in Nephrology |
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.
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 kidney specialists in New York 8
Same specialty, same city.
Trained at University of Colorado School of Medicine, Denver 8
Other providers in the same specialty who trained at the same institution.
More connections — 14 related providers in 2 groups
Class of 1975 at University of Colorado School of Medicine, Denver 6
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in NY who bill this service to Medicare most often.
Common questions
What kind of doctor is Mark H. Gardenswartz?
Mark H. Gardenswartz is a kidney specialist in New York, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Nephrology”.
NPI registry
What is Mark H. Gardenswartz's address?
Mark H. Gardenswartz is listed at 110 E 59Th St, New York, NY 10022. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Mark H. Gardenswartz?
The number on file is (212) 583-2930. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Mark H. Gardenswartz?
Mark H. Gardenswartz's National Provider Identifier is 1326063215. 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 Mark H. Gardenswartz train?
Mark H. Gardenswartz attended University of Colorado School of Medicine, Denver, graduating in 1975. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Mark H. Gardenswartz have?
Mark H. Gardenswartz has 51 years experience. Calculated from a graduation year of 1975, reported in the CMS National Downloadable File.
CMS public data
What procedures does Mark H. Gardenswartz perform?
According to Medicare billing data, Mark H. Gardenswartz performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report and influenza vaccine split virus, preservative free, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Mark H. Gardenswartz's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Mark H. Gardenswartz. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.