LAEL GREENSTEIN M.D.
NPI 1164867701
Family Medicine in Malden, MA

Q: What is Lael Greenstein's NPI number?

The NPI number for Lael Greenstein is 1164867701. It was assigned to this individual provider in the NPPES registry on May 9, 2013.

Q: What is Lael Greenstein'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 Lael Greenstein was last updated on November 3, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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 May 09, 2013PECOS EnrolledAccepts Medicare Assignment

195 CANAL ST, MALDEN, MA 02148(781) 338-0500 Get Directions Write a Review

NPPES record last updated: November 3, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Lael Greenstein M.d. NPPES

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

LAEL GREENSTEIN M.D. (NPI 1164867701) is an individual family medicine provider in Malden, Massachusetts, licensed in Massachusetts (266386) and active in the NPI registry since May 2013. She is enrolled in Medicare PECOS, is affiliated with Beth Israel Deaconess Hospital - Needham, and is a graduate of Jefferson Medical College Of Thomas Jefferson University (2013).

NPPES Registry Identity

NPI1164867701

Entity TypeIndividualFemale

Primary Taxonomy207Q00000X

Provider Legal NameLAEL GREENSTEINCredential: M.D.

Location Address195 CANAL STMalden, MA 02148-6701

Mailing Address195 Canal StMalden, MA 02148-6701 · (781) 338-0500

Phone(781) 338-0500

Sole ProprietorNo

Medical School CMSJefferson Medical College Of Thomas Jefferson UniversityGraduated 2013

Enumeration DateMay 9, 2013

Last NPPES UpdateNovember 3, 2016

✔ NPI 1164867701 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207Q00000X

License✔ Licensed in MA · 266386

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.

195 CANAL ST, Malden, MA 02148

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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

Lael Greenstein 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 ID42590879

PECOS Enrollment IDI20161213000799

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 Lael Greenstein reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Cambridge Public Health Commission

3.5 mi

General Acute Care Hospital

1493 CAMBRIDGE ST, PROVIDER ENROLLMENT
Cambridge, MA 02139

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

NPI 1932313228 (617) 665-1000

Medical Care Of Boston Management Corporation

12 mi

Internal Medicine

464 HILLSIDE AVE, SUITE 304
Needham, MA 02494

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

NPI 1437196359 (617) 754-0730

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 13

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.

143 services90 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.

75 services75 patients

Annual alcohol misuse screening, 5 to 15 minutes G0442

An annual alcohol misuse screening is a 15-minute check-up to assess your drinking habits. It helps identify if you're consuming alcohol in a way that could harm your health. This is not a judgment, but a tool to promote your wellbeing.

74 services74 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.

69 services69 patients

Face-to-face behavioral counseling for obesity, 15 minutes G0447

This is a 15-minute consultation where a healthcare professional discusses your eating habits, physical activity, and goals to help manage your weight. The aim is to provide personalized strategies to promote a healthier lifestyle and combat obesity.

51 services36 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.

43 services35 patients

Hemoglobin a1c level 83036

Hemoglobin A1c (HbA1c) is a test that measures your average blood sugar level over the past 2-3 months. It's used to monitor how well diabetes is being controlled. High levels may indicate that your diabetes treatment plan needs adjustment.

29 services20 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.

25 services25 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.

21 services21 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.

19 services19 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.

17 services17 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.

12 services12 patients

Advance care planning, first 30 minutes 99497

Advance care planning is a process where you discuss your healthcare preferences with your doctor. This conversation, lasting up to 30 minutes, helps ensure your wishes are respected if you're unable to communicate them in the future. It's about your care, your way.

12 services11 patients

Hospital Affiliations CMS Care Compare 4

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

Beth Israel Deaconess Hospital - Needham

Acute Care Hospitals · Needham, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220083

Location148 Chestnut StreetNeedham, MA 02494 · Norfolk County

Emergency services

Beth Israel Deaconess Medical Center

Acute Care Hospitals · Boston, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220086

Location330 Brookline AvenueBoston, MA 02215 · Suffolk County

Emergency services Birthing friendly

South Shore Hospital

Acute Care Hospitals · South Weymouth, MA

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number220100

Location55 Fogg RoadSouth Weymouth, MA 02190 · Norfolk County

Emergency services Birthing friendly

Beth Israel Deaconess Hospital - Milton

Acute Care Hospitals · Milton, MA

4/5 CMS rating

OwnershipGovernment - Federal

CMS Certification Number220108

Location199 Reedsdale RoadMilton, MA 02186 · Norfolk County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02148 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

$97.64 typical visit price

range $63.72 – $189.86

Typical copayment $24.41 (range $15.93 – $47.46)

Most-billed visit code 99203

Established Patient

$111.18 typical visit price

range $21.07 – $155.29

Typical copayment $27.79 (range $5.26 – $38.82)

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

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

8 suppliers19 claims54 services$4.91 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. NICHOLAS GOPAL

Pharmacist

195 CANAL ST
MALDEN, MA 02148

Middlesex County (617) 665-2020

DR. ALANA TOVA MD

Student in an Organized Health Care Education/Training Program

195 CANAL ST
MALDEN, MA 02148

Middlesex County (781) 338-0500

LAURA J SULLIVAN MD

Family Medicine

195 CANAL ST
MALDEN, MA 02148

Middlesex County (781) 338-0500

CAITLIN FEBRES-MAZZEI RN

Registered Nurse

195 CANAL ST, SUITE 100
MALDEN, MA 02148

Middlesex County (617) 665-1566

MARGARIDA CARDOSO HOLMES

Health Educator

195 CANAL ST
MALDEN, MA 02148

Middlesex County (781) 338-0500

DR. PAUL FRYDRYCH MD

Student in an Organized Health Care Education/Training Program

195 CANAL ST
MALDEN, MA 02148

Middlesex County (781) 338-0500

CALEB WARREN MD, MBA

Student in an Organized Health Care Education/Training Program

195 CANAL ST
MALDEN, MA 02148

Middlesex County (781) 338-0500

MARIAM MALOYAN DO

Student in an Organized Health Care Education/Training Program

195 CANAL ST
MALDEN, MA 02148

Middlesex County (781) 338-0500

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 Lael Greenstein's NPI number?

The NPI number for Lael Greenstein is 1164867701. It was assigned to this individual provider in the NPPES registry on May 9, 2013.

Where is Lael Greenstein located?

Lael Greenstein practices at 195 Canal St, Malden, MA 02148. The listed phone number is (781) 338-0500.

What is Lael Greenstein's specialty?

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

Is Lael Greenstein enrolled in Medicare?

Yes. Lael Greenstein 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 Lael Greenstein's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lael Greenstein reassigns Medicare benefits to 2 organizations: Cambridge Public Health Commission (Cambridge, MA) and Medical Care Of Boston Management Corporation (Needham, MA). 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 Lael Greenstein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Is Lael Greenstein affiliated with any hospitals?

According to CMS data, Lael Greenstein is affiliated with Beth Israel Deaconess Hospital - Needham, Beth Israel Deaconess Medical Center, South Shore Hospital and Beth Israel Deaconess Hospital - Milton.

When was this NPI record last updated?

The NPPES record for Lael Greenstein was last updated on November 3, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.