DR. GRETCHEN L MOCKLER M.D.
NPI 1164525457
Family Medicine in Stony Brook, NY

Q: What is Gretchen Mockler's NPI number?

The NPI number for Gretchen Mockler is 1164525457. It was assigned to this individual provider in the NPPES registry on September 5, 2006.

Q: What is Gretchen Mockler's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Q: When was this NPI record last updated?

The NPPES record for Gretchen Mockler was last updated on August 6, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 September 05, 2006PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

STONY BROOK FAMILY MEDICINE, HSC L4 ROOM 050, STONY BROOK, NY 11794(631) 444-8430 Get Directions Write a Review

NPPES record last updated: August 6, 2023. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Dr. Gretchen L Mockler M.d. NPPES

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

DR. GRETCHEN L MOCKLER M.D. (NPI 1164525457) is an individual family medicine provider in Stony Brook, New York, licensed in New York (233618) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS, is affiliated with New York-presbyterian Hospital, and is a graduate of Js Weill Medical College, Cornell University (2002).

NPPES Registry Identity

NPI1164525457

Entity TypeIndividualFemale

Primary Taxonomy207Q00000X

Provider Legal NameDR. GRETCHEN L MOCKLERCredential: M.D.

Location AddressSTONY BROOK FAMILY MEDICINE, HSC L4 ROOM 050Stony Brook, NY 11794-0001

Mailing AddressStony Brook Family Medicine, Hsc L4 Room 050Stony Brook, NY 11794-0001 · (631) 444-8430

Phone(631) 444-8430

Sole ProprietorYes

Medical School CMSJs Weill Medical College, Cornell UniversityGraduated 2002

Enumeration DateSeptember 5, 2006

Last NPPES UpdateAugust 6, 2023

NPPES CertifiedAugust 6, 2023

✔ NPI 1164525457 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in NY · 233618

Definition

Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.

STONY BROOK FAMILY MEDICINE, Stony Brook, NY 11794

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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Gretchen L Mockler 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 ID3173549995

PECOS Enrollment IDI20051020001087

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.

Medicare Billing Reassignment

Medicare enrollment records show Gretchen Mockler reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Weill Medical College Of Cornell University

34 mi

Psychologist

21 BLOOMINGDALE RD, DEPT. OF PSYCHIATRY
White Plains, NY 10605

Reassigned Medicare billing, New York enrollment
Medicare enrollment name: Weill Medical College Of Cornell
980 clinicians in this Medicare group

NPI 1538352026 (914) 997-5791

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 17

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.

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.

276 services155 patients

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.

163 services140 patients

Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit G0439

An annual wellness visit is a yearly appointment with your primary care provider to create or update a personalized prevention plan. This plan helps prevent illness based on your current health and risk factors. It's a subsequent visit, meaning it follows an initial assessment.

156 services156 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

155 services117 patients

Annual depression screening, 5 to 15 minutes G0444

An annual depression screening is a short, routine evaluation to check for signs of depression. It involves answering a series of questions about your feelings, thoughts, and behaviors. The process takes about 15 minutes and helps detect depression early for better management.

105 services105 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.

77 services77 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.

55 services54 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.

52 services51 patients

Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use 90677

The Pneumococcal Conjugate Vaccine (PCV20) is a shot given to protect against 20 types of bacteria that can cause serious infections like pneumonia and meningitis. It's administered through a muscle, usually in the arm. It's important for overall health.

36 services36 patients

Administration of pneumococcal vaccine G0009

The pneumococcal vaccine helps protect against pneumococcal bacteria, which can cause severe infections like pneumonia and meningitis. The vaccine is given as an injection, typically in the arm. It's recommended for infants, older adults, and those with certain health conditions.

36 services36 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.

31 services27 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.

23 services19 patients

Amplifed dna or rna probe detection of severe acute respiratory syndrome coronavirus 2 (covid-19) antigen 87635

This is a lab test that detects the presence of COVID-19 in your body. It uses a technique to amplify the virus's genetic material, either DNA or RNA, making it easier to identify. A positive result indicates an active infection.

20 services20 patients

Detection test by nucleic acid for multiple types of respiratory virus, multiple types or subtypes, 3-5 targets 87631

This test identifies different respiratory viruses by examining their nucleic acid, the building blocks of their genetic material. It can detect multiple types or subtypes, specifically 3-5 targets. This helps in diagnosing your respiratory illness accurately.

19 services19 patients

Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment G0402

An Initial Preventive Physical Examination, also known as a "Welcome to Medicare" visit, is a one-time, face-to-face visit during your first 12 months of Medicare enrollment. It includes a review of your health, as well as education and counseling about preventive services and further screenings.

14 services14 patients

Telephone medical discussion with physician, 5-10 minutes 99441

A telephone medical discussion with a physician is a brief, 5-10 minute call where you can discuss your health concerns. It's a convenient way to receive medical advice without needing to visit a clinic. It's important to prepare questions in advance to make the most of this time.

13 services13 patients

Transitional care management services for problem of at least moderate complexity 99495

Transitional care management services focus on coordinating and managing your care after you leave the hospital. For moderate complexity problems, this involves managing your medications, arranging further treatments, and ensuring you have the necessary follow-ups.

11 services11 patients

Hospital Affiliations CMS Care Compare 3

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

New York-Presbyterian Hospital

Acute Care Hospitals · New York, NY

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330101

Location525 East 68th StreetNew York, NY 10065 · New York County

Emergency services Birthing friendly

Hospital For Special Surgery

Acute Care Hospitals · New York, NY

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330270

Location535 East 70th StreetNew York, NY 10021 · New York County

Emergency services

Suny/Stony Brook University Hospital

Acute Care Hospitals · Stony Brook, NY

4/5 CMS rating

OwnershipGovernment - State

CMS Certification Number330393

LocationHealth Sciences Center SunyStony Brook, NY 11794 · Suffolk County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11794 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

$105.06 typical visit price

range $67.40 – $203.53

Typical copayment $26.26 (range $16.85 – $50.88)

Most-billed visit code 99203

Established Patient

$117.62 typical visit price

range $21.66 – $164.45

Typical copayment $29.40 (range $5.41 – $41.11)

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.

100/100

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

Scored through an Alternative Payment Model

Quality

86.8

Promoting Interoperability

100

Improvement Activities

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 Gretchen Mockler's NPI number?

The NPI number for Gretchen Mockler is 1164525457. It was assigned to this individual provider in the NPPES registry on September 5, 2006.

Where is Gretchen Mockler located?

Gretchen Mockler practices at Stony Brook Family Medicine Hsc L4 Room 050, Stony Brook, NY 11794. The listed phone number is (631) 444-8430.

What is Gretchen Mockler's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Gretchen Mockler enrolled in Medicare?

Yes. Gretchen Mockler 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.

Which organization bills Medicare for Gretchen Mockler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gretchen Mockler reassigns Medicare benefits to Weill Medical College Of Cornell University (White Plains, NY). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gretchen Mockler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Gretchen Mockler affiliated with any hospitals?

According to CMS data, Gretchen Mockler is affiliated with New York-Presbyterian Hospital, Hospital For Special Surgery and Suny/Stony Brook University Hospital.

When was this NPI record last updated?

The NPPES record for Gretchen Mockler was last updated on August 6, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.