Dr. Linda S. Efferen, MD
- Affiliated sites
- 2
- Medical groups
- 2
- State license
- 1
- Year NPI issued
- 2006
- Practice locations
- 2
- Practice address
- 2750 Merrick Rd, Bellmore, NY 11710-5720
- Practice phone
- Call (516) 409-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
South Nassau Primary Medical Care
Multi-specialty group site · Bellmore, New York
Find Dr. Efferen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Linda S. Efferen is a pulmonologist in Hauppauge, New York
Dr. Efferen practices at South Nassau Primary Medical Care in Bellmore, New York.
Dr. Efferen's NPI, 1558431908, was assigned on November 9, 2006. Dr. Efferen graduated from Tel Aviv University Sackler in 1983. Dr. Efferen holds New York license 156065.
- NPI
- 1558431908NPI Registry (opens in a new tab)
- NPI enumeration date
- November 9, 2006
- NPI status
- Active
- Practice phone
- (516) 409-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Linda S. Efferen practices in Bellmore and Hauppauge
Dr. Efferen's primary practice is South Nassau Primary Medical Care, at 2750 Merrick Rd, Bellmore, NY 11710-5720. The practice phone is (516) 409-2000. The NPI Registry lists Dr. Efferen's practice address as 1383 Veterans Memorial Hwy, Hauppauge, NY 11788-3048.
- South Nassau Primary Medical CarePrimary2750 Merrick Rd, Bellmore, NY 11710-5720Phone(516) 409-2000
- NPI Registry address1383 Veterans Memorial Hwy, Hauppauge, NY 11788-3048Phone(631) 638-1397
Sources: NPPES NPI Registry (CMS); Dmand AI Affiliation Data; Doctors and Clinicians National Downloadable File (CMS); and Dmand AI Practice Data
Dr. Linda S. Efferen is affiliated with 2 sites of care and 2 medical groups
Dr. Efferen's primary practice is South Nassau Primary Medical Care in Bellmore, New York. Dmand AI also links Dr. Efferen to 2 medical groups and 1 group practice or clinic, each named with a free account.
Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dmand AI tracks the EHR system at Dr. Linda S. Efferen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Efferen practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| South Nassau Primary Medical Care | Available with a free account |
| +1 more site and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Linda S. Efferen is one of 1,056 pulmonologists in New York
Pulmonary disease is Dr. Efferen's primary specialty in the NPI Registry, under taxonomy code 207RP1001X. Dr. Efferen is licensed in New York.
Specialties and state licenses
- Pulmonary disease, New YorkPrimary
Pulmonologists near Dr. Efferen
Counts of pulmonologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Linda S. Efferen graduated from Tel Aviv University Sackler
Dr. Efferen graduated from Tel Aviv University Sackler in 1983.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Linda S. Efferen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Linda S. Efferen
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Linda S. Efferen's NPI number?
Dr. Linda S. Efferen's NPI number is 1558431908. It was assigned on November 9, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Linda S. Efferen?
Dr. Linda S. Efferen is a pulmonologist in Hauppauge, New York. The primary specialty in the NPI Registry is Pulmonary Disease Physician (taxonomy code 207RP1001X).
Where does Dr. Linda S. Efferen practice?
Dr. Efferen practices at 2750 Merrick Rd, Bellmore, NY 11710-5720. Dr. Efferen also practices at 1383 Veterans Memorial Hwy, Hauppauge, NY 11788-3048. Dr. Efferen's primary practice is South Nassau Primary Medical Care in Bellmore, New York. Dmand AI also links Dr. Efferen to 2 medical groups and 1 group practice or clinic.
What is Dr. Linda S. Efferen's office phone number?
The practice phone on file for Dr. Efferen is (516) 409-2000.
What is Dr. Linda S. Efferen's medical license number?
Dr. Efferen holds New York license 156065.
Where did Dr. Linda S. Efferen go to medical school?
Dr. Efferen graduated from Tel Aviv University Sackler in 1983.
How long has Dr. Linda S. Efferen been practicing?
Dr. Efferen graduated from medical school in 1983, 43 years ago.
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