DR. MARK H GARDENSWARTZ M.D.
NPI 1326063215
Internal Medicine - Nephrology in New York, NY

Q: What is Mark Gardenswartz's NPI number?

The NPI number for Mark Gardenswartz is 1326063215. It was assigned to this individual provider in the NPPES registry on July 13, 2006.

Q: What is Mark Gardenswartz's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Q: When was this NPI record last updated?

The NPPES record for Mark Gardenswartz was last updated on September 16, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since July 13, 2006PECOS EnrolledAccepts Medicare Assignment

91.25/100

CMS Quality Rating

110 E 59TH ST, NEW YORK, NY 10022(212) 583-2930 Get Directions Write a Review

NPPES record last updated: September 16, 2007. Verified against the NPPES registry weekly; last sync: August 09, 2026.

On this page

About Dr. Mark H Gardenswartz M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. MARK H GARDENSWARTZ M.D. (NPI 1326063215) is an individual nephrology provider in New York, New York, licensed in New York (128389) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Lenox Hill Hospital, and is a graduate of University Of Colorado School Of Medicine, Denver (1975).

NPPES Registry Identity

NPI1326063215

Entity TypeIndividualMale

Primary Taxonomy207RN0300X

Provider Legal NameDR. MARK H GARDENSWARTZCredential: M.D.

Location Address110 E 59TH STNew York, NY 10022-1304

Mailing Address110 E 59th StNew York, NY 10022-1304 · (212) 583-2930

Phone(212) 583-2930

Sole ProprietorYes

Medical School CMSUniversity Of Colorado School Of Medicine, DenverGraduated 1975

Enumeration DateJuly 13, 2006

Last NPPES UpdateSeptember 16, 2007

✔ NPI 1326063215 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians

Taxonomy Code207RN0300X

License✔ Licensed in NY · 128389

Definition

An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.

110 E 59TH ST, New York, NY 10022

Open in Google Maps ↗

Other Identifiers 2

Medicare UPINB11240NY

Medicare PINWES211NY

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mark H Gardenswartz M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7618884511

PECOS Enrollment IDI20040715000594

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Insertion of needle into vein for collection of blood sample 36415

This procedure involves inserting a small needle into a vein, typically in your arm, to collect a blood sample. It's a quick and simple process to help diagnose or monitor health conditions. You may feel a small prick, but discomfort is minimal.

901 services310 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

879 services284 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

356 services99 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

120 services96 patients

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000

An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.

105 services92 patients

Telephone medical discussion with physician, 11-20 minutes 99442

This is a service where you have a phone conversation with your doctor for 11-20 minutes. It's used for discussing health concerns, reviewing test results, or managing ongoing conditions. It's a convenient way to receive medical advice without an in-person visit.

88 services64 patients

Administration of influenza virus vaccine G0008

The administration of the influenza virus vaccine, also known as the flu shot, is a simple procedure to protect against the flu. A healthcare provider injects a small dose of the vaccine into your arm. This stimulates your immune system to produce antibodies, which will help your body fight off the flu if exposed.

71 services71 patients

Influenza vaccine split virus, preservative free 90662

The Influenza Vaccine Split Virus, preservative-free, is a flu shot to protect against the influenza virus. It is made from parts of inactivated flu viruses and doesn't contain preservatives, reducing potential side effects. It helps your body develop immunity to the flu.

69 services69 patients

Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes 99223

Initial hospital inpatient care per day, typically 70 minutes, refers to the daily medical service provided to patients admitted to the hospital. This includes a comprehensive evaluation, diagnosis, treatment plan, and monitoring of your health condition. It ensures your well-being during your hospital stay.

40 services40 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

37 services36 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

32 services32 patients

Telephone medical discussion with physician, 21-30 minutes 99443

This service involves a 21-30 minute phone conversation with a physician. It's a chance for you to discuss your health concerns, symptoms or treatment plans. It's similar to an in-person consultation, but conducted over the phone for your convenience and safety.

32 services27 patients

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Lenox Hill Hospital

Acute Care Hospitals · New York, NY

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330119

Location100 East 77th StreetNew York, NY 10021 · New York County

Emergency services Birthing friendly

Phelps Hospital

Acute Care Hospitals · Sleepy Hollow, NY

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330261

Location701 N BroadwaySleepy Hollow, NY 10591 · Westchester County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10022 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$150.24 typical visit price

range $65.69 – $198.19

Typical copayment $37.56 (range $16.42 – $49.54)

Most-billed visit code 99204

Established Patient

$114.88 typical visit price

range $21.20 – $160.66

Typical copayment $28.72 (range $5.30 – $40.16)

Most-billed visit code 99214

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

91.25/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored through an Alternative Payment Model

Quality

74.92

Promoting Interoperability

91.67

Improvement Activities

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tacrolimus, immediate release, oral, 1 mg J7507

Treatment-Treatment - Miscellaneous · category RX029N

8 suppliers53 claims4,560 services$0.31 avg. paid by Medicare

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511

Treatment-Chemotherapy · category RH012N

8 suppliers49 claims49 services$17.78 avg. paid by Medicare

Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512

Treatment-Chemotherapy · category RH012N

3 suppliers16 claims17 services$11.16 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. STEVEN DAVID SCHAEFER M.D.

Specialist

110 E 59TH ST, SUITES 8C AND 10A
NEW YORK, NY 10022

New York County (212) 434-4500

DANIEL J ADLER, MD, PC

Internal Medicine (Gastroenterology)

110 E 59TH ST, SUITE 9D
NEW YORK, NY 10022

New York County (212) 826-3903

DR. SARA PAYAMI AUD

Audiologist

110 E 59TH ST
NEW YORK, NY 10022

New York County (212) 434-4500

GERALD S. BAHR M.D., P.C.

Internal Medicine

110 E 59TH ST, SUITE 9A
NEW YORK, NY 10022

New York County (212) 583-2878

DR. ISRAEL S BERKOWITZ MD

Internal Medicine (Cardiovascular Disease)

110 E 59TH ST, SUITE8A
NEW YORK, NY 10022

New York County (212) 772-3363

DR. LUCIA PALLADINO M.D.

Specialist

110 E 59TH ST, 9 FLOOR
NEW YORK, NY 10022

New York County (212) 583-2993

PETER J BRUNO, MD PC

Internal Medicine

110 E 59TH ST, SUITE 9A
NEW YORK, NY 10022

New York County (212) 583-2898

DINA OSTER, M.D., PC

Internal Medicine

110 E 59TH ST, SUITE 9A
NEW YORK, NY 10022

New York County (212) 583-2883

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Gardenswartz's NPI number?

The NPI number for Mark Gardenswartz is 1326063215. It was assigned to this individual provider in the NPPES registry on July 13, 2006.

Where is Mark Gardenswartz located?

Mark Gardenswartz practices at 110 E 59th St, New York, NY 10022. The listed phone number is (212) 583-2930.

What is Mark Gardenswartz's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is Mark Gardenswartz enrolled in Medicare?

Yes. Mark Gardenswartz is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Is Mark Gardenswartz affiliated with any hospitals?

According to CMS data, Mark Gardenswartz is affiliated with Lenox Hill Hospital and Phelps Hospital.

When was this NPI record last updated?

The NPPES record for Mark Gardenswartz was last updated on September 16, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.