ALEXANDER KATZ MD
NPI 1699889261
Family Medicine in Brooklyn, NY

Q: What is Alexander Katz's NPI number?

The NPI number for Alexander Katz is 1699889261. It was assigned to this individual provider in the NPPES registry on August 19, 2006.

Q: What is Alexander Katz'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 Alexander Katz was last updated on September 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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 August 19, 2006PECOS EnrolledAccepts Medicare Assignment

331 KINGS HWY, BROOKLYN, NY 11223(646) 490-0017(718) 889-7563 Get Directions Write a Review

NPPES record last updated: September 25, 2025. Verified against the NPPES registry weekly; last sync: November 08, 2026.

Record update history: Jan 11, 2023, Jul 7, 2022, Dec 27, 2021 and 1 more (4 updates tracked since 2020).

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About Alexander Katz Md NPPES

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

ALEXANDER KATZ MD (NPI 1699889261) is an individual family medicine provider in Brooklyn, New York, licensed in New York (254924-01) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with North Shore Medical Center -, and is a graduate of Other (1996).

NPPES Registry Identity

NPI1699889261

Entity TypeIndividualMale

Primary Taxonomy207Q00000X

Provider Legal NameALEXANDER KATZCredential: MD

Location Address331 KINGS HWYBrooklyn, NY 11223-1443

Mailing Address1657 Hewlett Heath RdHewlett, NY 11557-1704 · (646) 490-0017 · Fax (718) 889-7563

Phone(646) 490-0017

Fax(718) 889-7563

Sole ProprietorNo

Medical School CMSOtherGraduated 1996

Enumeration DateAugust 19, 2006

Last NPPES UpdateSeptember 25, 20254 updates tracked since enumeration

NPPES CertifiedSeptember 25, 2025

✔ NPI 1699889261 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

Licenses✔ Licensed in NY · 254924-01✔ Licensed in MA · 226433

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.

331 KINGS HWY, Brooklyn, NY 11223

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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

Alexander Katz 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 ID3577578723

PECOS Enrollment IDI20060209000487, I20230202001471

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

Medicare enrollment records show Alexander Katz reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Amk Medical PC

Same address

Family Medicine

331 KINGS HWY
Brooklyn, NY 11223

Reassigned Medicare billing, New York enrollment

NPI 1285460667 (646) 490-0017

Ks Medical, PC

1.4 mi

Family Medicine

1721 86TH ST
Brooklyn, NY 11214

Reassigned Medicare billing, New York enrollment
9 clinicians in this Medicare group

NPI 1295131506 (718) 331-6064

Be Well Primary Health Care Center, LLC

2.7 mi

Multi-Specialty

3007 FARRAGUT ROAD
Brooklyn, NY 11210

Reassigned Medicare billing, New York enrollment
99 clinicians in this Medicare group

NPI 1083623409 (718) 434-0711

E & A Medical Solutions LLC

15 mi

Multi-Specialty

253 E 142ND ST
Bronx, NY 10451

Reassigned Medicare billing, New York enrollment
32 clinicians in this Medicare group

NPI 1730441791 (718) 306-6220

Berkshire Medical Center, Inc

133 mi

General Acute Care Hospital

725 NORTH ST
Pittsfield, MA 01201

Reassigned Medicare billing, Massachusetts enrollment
394 clinicians in this Medicare group

NPI 1295765261 (413) 447-2000

North Adams Regional Hospital Corporation

152 mi

Critical Access

71 HOSPITAL AVE
North Adams, MA 01247

Reassigned Medicare billing, Massachusetts enrollment
153 clinicians in this Medicare group

NPI 1316727761 (413) 664-5000

Mass General Brigham Medical Group Northern Massachusetts Inc

206 mi

Emergency Medicine

81 HIGHLAND AVE
Salem, MA 01970

Reassigned Medicare billing, Massachusetts enrollment
994 clinicians in this Medicare group

NPI 1588606123 (978) 354-4173

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 2

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 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.

50 services50 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.

37 services37 patients

Hospital Affiliations CMS Care Compare 3

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

North Shore Medical Center -

Acute Care Hospitals · Salem, MA

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220035

Location81 Highland AvenueSalem, MA 01970 · Essex County

Emergency services Birthing friendly

Berkshire Medical Center

Acute Care Hospitals · Pittsfield, MA

3/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number220046

Location725 North StreetPittsfield, MA 01201 · Berkshire County

Emergency services Birthing friendly

Fairview Hospital

Critical Access Hospitals · Great Barrington, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number221302

Location29 Lewis AvenueGreat Barrington, MA 01230 · Berkshire County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 11223 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.

Referred Medical Equipment & Supplies CMS DME claims 5

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

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253

DME-Other DME · category DE017N

14 suppliers69 claims187 services$6.62 avg. paid by Medicare

Normal, low and high calibrator solution / chips A4256

DME-Other DME · category DE000N

2 suppliers12 claims12 services$2.97 avg. paid by Medicare

Lancets, per box of 100 A4259

DME-Medical/Surgical Supplies · category DA000N

10 suppliers42 claims66 services$1.13 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

1 supplier17 claims17 services$64.42 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

1 supplier12 claims12 services$30.47 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 2

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

AMK MEDICAL PC

Family Medicine

331 KINGS HWY
BROOKLYN, NY 11223

Kings County (646) 490-0017

V ALHOV MEDICAL PC

Pain Medicine (Pain Medicine)

331 KINGS HWY
BROOKLYN, NY 11223

Kings County (929) 326-2322

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 Alexander Katz's NPI number?

The NPI number for Alexander Katz is 1699889261. It was assigned to this individual provider in the NPPES registry on August 19, 2006.

Where is Alexander Katz located?

Alexander Katz practices at 331 Kings Hwy, Brooklyn, NY 11223. The listed phone number is (646) 490-0017.

What is Alexander Katz's specialty?

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

Is Alexander Katz enrolled in Medicare?

Yes. Alexander Katz 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 organizations bill Medicare for Alexander Katz's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Alexander Katz reassigns Medicare benefits to 7 organizations: Amk Medical PC (Brooklyn, NY), Ks Medical, PC (Brooklyn, NY), Be Well Primary Health Care Center, LLC (Brooklyn, NY), E & A Medical Solutions LLC (Bronx, NY), Berkshire Medical Center, Inc (Pittsfield, MA) and 2 more organizations, listed in the Medicare section above. 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 Alexander Katz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Alexander Katz affiliated with any hospitals?

According to CMS data, Alexander Katz is affiliated with North Shore Medical Center -, Berkshire Medical Center and Fairview Hospital.

When was this NPI record last updated?

The NPPES record for Alexander Katz was last updated on September 25, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 months 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.