MARY HAHN MD
NPI 1275021081
Psychiatry & Neurology - Vascular Neurology in Stony Brook, NY

Q: What is Mary Hahn's NPI number?

The NPI number for Mary Hahn is 1275021081. It was assigned to this individual provider in the NPPES registry on April 26, 2018.

Q: What is Mary Hahn's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Vascular Neurology, with taxonomy code 2084V0102X.

Q: When was this NPI record last updated?

The NPPES record for Mary Hahn was last updated on July 11, 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 April 26, 2018PECOS EnrolledAccepts Medicare Assignment

98.52/100

CMS Quality Rating

HEALTH SCIENCES CENTER T12-020, STONY BROOK, NY 11794(631) 444-8118 Get Directions Write a Review

NPPES record last updated: July 11, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Jul 11, 2023, Jun 21, 2023, Apr 26, 2018 (3 updates tracked since 2018).

On this page

About Mary Hahn Md NPPES

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

MARY HAHN MD (NPI 1275021081) is an individual vascular neurology provider in Stony Brook, New York, licensed in New York (322453) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS, is affiliated with Long Island Community Hospital, and is a graduate of Other (2023).

NPPES Registry Identity

NPI1275021081

Entity TypeIndividualFemale

Primary Taxonomy2084V0102X

Provider Legal NameMARY HAHNCredential: MD

Location AddressHEALTH SCIENCES CENTER T12-020Stony Brook, NY 11794-0001

Mailing AddressHealth Sciences Center T12-020Stony Brook, NY 11794-0001 · (631) 444-8118

Phone(631) 444-8118

Sole ProprietorNo

Medical School CMSOtherGraduated 2023

Enumeration DateApril 26, 2018

Last NPPES UpdateJuly 11, 20233 updates tracked since enumeration

NPPES CertifiedJuly 11, 2023

✔ NPI 1275021081 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyPsychiatry & Neurology · Vascular NeurologyAllopathic & Osteopathic Physicians

Taxonomy Code2084V0102X

License✔ Licensed in NY · 322453

Definition

Vascular Neurology is a subspecialty in the evaluation, prevention, treatment and recovery from vascular diseases of the nervous system. This subspecialty includes the diagnosis and treatment of vascular events of arterial or venous origin from a large number of causes that affect the brain or spinal cord such as ischemic stroke, intracranial hemorrhage, spinal cord ischemia and spinal cord hemorrhage.

Also ListedPsychiatry & Neurology · NeurologyTaxonomy 2084N0400X · License 036.160135 (IL), 322453 (NY)

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

HEALTH SCIENCES CENTER T12-020, Stony Brook, NY 11794

Open in Google Maps ↗

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

Mary Hahn Md 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 ID8426394685

PECOS Enrollment IDI20230706002628

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 14

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.

Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 99221

Initial hospital inpatient care refers to the first day of your stay in the hospital. This service typically includes a 30-minute check-up with a healthcare professional. They'll assess your health, discuss your condition, and plan your treatment. It's part of ensuring you receive the best possible care.

135 services133 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

111 services110 patients

Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231

Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.

89 services66 patients

Telehealth consultation, critical care, initial , physicians typically spend 60 minutes communicating with the patient and providers via telehealth G0508

A telehealth consultation for critical care is a virtual meeting with a physician, typically lasting 60 minutes. Here, the doctor assesses your health condition, provides guidance, and communicates with other care providers, all through digital platforms. It's a safe, convenient way to receive critical care.

53 services53 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.

52 services42 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232

Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.

48 services38 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.

35 services35 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.

33 services30 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

33 services33 patients

Hospital discharge day management, 30 minutes or less 99238

Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.

24 services24 patients

Emergency department visit with low level of medical decision making 99283

An emergency department visit for a problem of moderate severity involves immediate medical attention for issues like minor fractures, burns, or high fever. The healthcare team will assess your condition, provide necessary treatment, and may suggest further tests or admission if required.

20 services20 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.

16 services16 patients

New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203

This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.

13 services13 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

13 services12 patients

Hospital Affiliations CMS Care Compare 2

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

Long Island Community Hospital

Acute Care Hospitals · Patchogue, NY

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number330141

Location101 Hospital RoadPatchogue, NY 11772 · Suffolk 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

$154.28 typical visit price

range $67.40 – $203.53

Typical copayment $38.57 (range $16.85 – $50.88)

Most-billed visit code 99204

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.

98.52/100

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

Scored through an Alternative Payment Model

Quality

82.85

Promoting Interoperability

100

Improvement Activities

Other Providers at the Same Location NPPES 2

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

JOOMEE SONG MD

Student in an Organized Health Care Education/Training Program

HEALTH SCIENCES CENTER T12-020
STONY BROOK, NY 11794

Suffolk County (631) 444-7878

DR. SHADIKCHHYA BHATTARAI MD

Student in an Organized Health Care Education/Training Program

HEALTH SCIENCES CENTER T12-020
STONY BROOK, NY 11794

Suffolk County (631) 444-7878

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 Mary Hahn's NPI number?

The NPI number for Mary Hahn is 1275021081. It was assigned to this individual provider in the NPPES registry on April 26, 2018.

Where is Mary Hahn located?

Mary Hahn practices at Health Sciences Center T12-020, Stony Brook, NY 11794. The listed phone number is (631) 444-8118.

What is Mary Hahn's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Vascular Neurology, with taxonomy code 2084V0102X.

Is Mary Hahn enrolled in Medicare?

Yes. Mary Hahn 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 Mary Hahn affiliated with any hospitals?

According to CMS data, Mary Hahn is affiliated with Long Island Community Hospital and Suny/Stony Brook University Hospital.

When was this NPI record last updated?

The NPPES record for Mary Hahn was last updated on July 11, 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.