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DR. ALINA MASTAN M.D.
NPI 1285620245
Internal Medicine in New York, NY

Active since September 26, 2005PECOS Enrolled
247 3RD AVE, SUITE 401, NEW YORK, NY 10010(212) 228-4600(212) 260-8391 Get Directions Write a Review

NPPES record last updated: June 18, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Alina Mastan M.d. NPPES

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

DR. ALINA MASTAN M.D. (NPI 1285620245) is an individual internal medicine provider in New York, New York, licensed in New York (242762) and active in the NPI registry since September 2005. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1285620245
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameDR. ALINA MASTANCredential: M.D.
Location Address247 3RD AVE, SUITE 401New York, NY 10010
Mailing Address247 3rd Ave, Suite 401New York, NY 10010-7457 · (212) 228-4600 · Fax (212) 260-8391
Phone(212) 228-4600
Fax(212) 260-8391
Sole ProprietorYes
Enumeration DateSeptember 26, 2005
Last NPPES UpdateJune 18, 2018
✔ NPI 1285620245 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NY · 242762
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
Also ListedInternal Medicine · Hematology & OncologyTaxonomy 207RH0003X · License 25MA7120300 (NJ), 242761 (NY)
247 3RD AVE, New York, NY 10010
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Other Identifiers 1

Medicaid03304749NY

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Alina Mastan M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Reassignments

2

Medicare enrollment records show Alina Mastan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Lower Manhattan Gastroenterology Group, P.C.
0.2 mi
Gastroenterology
60 GRAMERCY PARK N, SUITE 1B
New York, NY 10010
  • Reassigned Medicare billing, New York enrollment
  • Medicare enrollment name: Lower Manhattan Gastroenterology Group PC
  • 7 clinicians in this Medicare group
NPI 1538115837 (212) 254-1220
Advantagecare Physicians PC
3.8 mi
General Practice
215 E 95TH ST
New York, NY 10128
  • Reassigned Medicare billing, New York enrollment
  • 724 clinicians in this Medicare group
NPI 1336578772 (212) 996-8000

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 5

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.
242 services96 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.
112 services59 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.
48 services48 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.
29 services21 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.
26 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10010 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.

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.

DAVID SCHICK M.D.
Psychiatry & Neurology (Neurology)
247 3RD AVE, SUITE 203
NEW YORK, NY 10010
New York County (212) 353-0505
HOSSAIN AWINI MD
Internal Medicine (Cardiovascular Disease)
247 3RD AVE, SUITE 404
NEW YORK, NY 10010
New York County (212) 420-8616
DR. ALAN DAVID SICKLES MD
Surgery
247 3RD AVE, SUITE L-2
NEW YORK, NY 10010
New York County (212) 533-8600
MONICA MOCA CIOROIU DDS
Dentist
247 3RD AVE, SUITE L-3
NEW YORK, NY 10010
New York County (212) 995-8099
R CHRISTINE MELTON MD PC
Ophthalmology
247 3RD AVE, SUITE#202
NEW YORK, NY 10010
New York County (212) 475-3791
MICHAEL HEUBLUM M.D.
Psychiatry & Neurology (Neurology)
247 3RD AVE, SUITE # 203
NEW YORK, NY 10010
New York County (212) 505-9800
MR. WILLIAM M. BOLAND CES, NPRT, CPT
Rehabilitation Practitioner
247 3RD AVE, SUITE 503
NEW YORK, NY 10010
New York County (917) 609-9476
GRAMERCY PHYSICAL THERAPY PC
Clinic/Center (Physical Therapy)
247 3RD AVE, SUITE LL2
NEW YORK, NY 10010
New York County (917) 589-9067

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 Alina Mastan's NPI number?

The NPI number for Alina Mastan is 1285620245. It was assigned to this individual provider in the NPPES registry on September 26, 2005.

Where is Alina Mastan located?

Alina Mastan practices at 247 3rd Ave Suite 401, New York, NY 10010. The listed phone number is (212) 228-4600.

What is Alina Mastan's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Alina Mastan enrolled in Medicare?

Yes. Alina Mastan is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Alina Mastan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alina Mastan reassigns Medicare benefits to 2 organizations: Lower Manhattan Gastroenterology Group, P.C. (New York, NY) and Advantagecare Physicians PC (New York, NY). Each 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 Alina Mastan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Alina Mastan was last updated on June 18, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.