DR. LINDSAY GAIL FRENKEL M.D.
NPI 1417375288
Internal Medicine - Critical Care Medicine in Naples, FL

Q: What is Lindsay Frenkel's NPI number?

The NPI number for Lindsay Frenkel is 1417375288. It was assigned to this individual provider in the NPPES registry on March 31, 2014. The provider is also known as Dr. Lindsay Gail Sher M.D..

Q: What is Lindsay Frenkel's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Q: When was this NPI record last updated?

The NPPES record for Lindsay Frenkel was last updated on June 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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 March 31, 2014PECOS EnrolledAccepts Medicare Assignment

350 7TH ST N, NAPLES, FL 34102(631) 806-8228(239) 624-8251 Get Directions Write a Review

NPPES record last updated: June 12, 2026. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Aug 18, 2020, Jul 9, 2019, Jun 18, 2019 and 1 more (4 updates tracked since 2016).

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About Dr. Lindsay Gail Frenkel M.d. NPPES

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

DR. LINDSAY GAIL FRENKEL M.D. (NPI 1417375288) is an individual critical care medicine provider in Naples, Florida, licensed in Florida (ME143936) and active in the NPI registry since March 2014. She is enrolled in Medicare PECOS, is affiliated with Naples Community Hospital, and is a graduate of Other (2014).

NPPES Registry Identity

NPI1417375288

Entity TypeIndividualFemale

Primary Taxonomy207RC0200X

Provider Legal NameDR. LINDSAY GAIL FRENKELCredential: M.D.

Location Address350 7TH ST NNaples, FL 34102-5754

Mailing AddressPo Box 8569Naples, FL 34101-8569

Phone(631) 806-8228

Fax(239) 624-8251

Sole ProprietorYes

Medical School CMSOtherGraduated 2014

Enumeration DateMarch 31, 2014

Last NPPES UpdateJune 12, 20264 updates tracked since enumeration

NPPES CertifiedJune 12, 2026

✔ NPI 1417375288 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · Critical Care MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207RC0200X

License✔ Licensed in FL · ME143936

Definition

An internist who diagnoses, treats and supports patients with multiple organ dysfunction. This specialist may have administrative responsibilities for intensive care units and may also facilitate and coordinate patient care among the primary physician, the critical care staff and other specialists.

Also ListedAnesthesiologyTaxonomy 207L00000X · License 2019-01359 (NC)

350 7TH ST N, Naples, FL 34102

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Other Names 1

Former Name (1)Dr. Lindsay Gail Sher M.d.

Other Identifiers 2

Medicaid106020900FL

OtherI0IB8FL · Bcbs

Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Cigna Healthcare, Cigna HealthCare of Florida, Inc..Insurance ›

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

Dr. Lindsay Gail Frenkel 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 ID1153635867

PECOS Enrollment IDI20200707002758

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 Lindsay Frenkel reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Nchmd Inc

Same address

Hematology & Oncology

350 7TH ST. N
Naples, FL 34102

Reassigned Medicare billing, Florida enrollment
808 clinicians in this Medicare group

NPI 1831120195 (239) 624-6400

Premier Critical Care ,llc

6.0 mi

Critical Care Medicine

6101 PINE RIDGE RD
Naples, FL 34119

Reassigned Medicare billing, Florida enrollment
29 clinicians in this Medicare group

NPI 1669064192 (239) 348-4000

Premier Inpatient Partners LLC

8.4 mi

Hospitalist

2338 IMMOKALEE RD, SUITE 186
Naples, FL 34110

Reassigned Medicare billing, Florida enrollment
140 clinicians in this Medicare group

NPI 1568916492 (239) 330-2933

Millennium Physician Group LLC

27 mi

Family Medicine

6321 DANIELS PKWY
Fort Myers, FL 33912

Reassigned Medicare billing, Florida enrollment
1,278 clinicians in this Medicare group

NPI 1811122880 (877) 856-3774

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 4

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.

Critical care, first 30-74 minutes 99291

Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.

260 services144 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.

57 services44 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.

55 services50 patients

Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes 99233

Follow-up hospital inpatient care per day typically involves a 35-minute check-up by your healthcare provider. This service includes monitoring your health progress, adjusting your treatment plan if needed, and answering any questions you may have about your condition or care.

13 services12 patients

Hospital Affiliations CMS Care Compare

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

Naples Community Hospital

Acute Care Hospitals · Naples, FL

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number100018

Location350 7th St NNaples, FL 34102 · Collier County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 34102 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

$135.56 typical visit price

range $58.56 – $179.05

Typical copayment $33.89 (range $14.64 – $44.76)

Most-billed visit code 99204

Established Patient

$103.21 typical visit price

range $18.44 – $144.68

Typical copayment $25.80 (range $4.61 – $36.17)

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.

AIMEE BERMUDEZ

Nurse Practitioner

350 7TH ST N
NAPLES, FL 34102

Collier County (239) 624-3997

ASHLEIGH TONDO

Nurse Anesthetist, Certified Registered

350 7TH ST N
NAPLES, FL 34102

Collier County (239) 624-5000

BARBARA JANET RAMOS DNP CRNA

Nurse Anesthetist, Certified Registered

350 7TH ST N
NAPLES, FL 34102

Collier County (239) 624-5000

DR. IVAN J SELIGMAN MD

Pathology (Anatomic Pathology & Clinical Pathology)

350 7TH ST N
NAPLES, FL 34102

Collier County (813) 263-5107

DR. LESLIE ANN RAYMOND MD

Hospitalist

350 7TH ST N
NAPLES, FL 34102

Collier County (239) 624-5000

RICHARD NEUROSURGICAL SERVICES, PLLC

Neurological Surgery

350 7TH ST N
NAPLES, FL 34102

Collier County (239) 624-5000

JOHN WAYNE SPONAUGLE DO

Emergency Medicine

350 7TH ST N
NAPLES, FL 34102

Collier County (239) 436-5000

DR. ADOLFO SOTO M.D.

Hospitalist

350 7TH ST N
NAPLES, FL 34102

Collier County (239) 624-3997

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 Lindsay Frenkel's NPI number?

The NPI number for Lindsay Frenkel is 1417375288. It was assigned to this individual provider in the NPPES registry on March 31, 2014. The provider is also known as Dr. Lindsay Gail Sher M.D..

Where is Lindsay Frenkel located?

Lindsay Frenkel practices at 350 7th St N, Naples, FL 34102. The listed phone number is (631) 806-8228.

What is Lindsay Frenkel's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.

Is Lindsay Frenkel enrolled in Medicare?

Yes. Lindsay Frenkel 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 Lindsay Frenkel's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Lindsay Frenkel reassigns Medicare benefits to 4 organizations: Nchmd Inc (Naples, FL), Premier Critical Care ,llc (Naples, FL), Premier Inpatient Partners LLC (Naples, FL) and Millennium Physician Group LLC (Fort Myers, FL). 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 Lindsay Frenkel's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Lindsay Frenkel accept?

Health plans from Cigna HealthCare of Florida, Inc. and Cigna Healthcare list Lindsay Frenkel as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Lindsay Frenkel affiliated with any hospitals?

According to CMS data, Lindsay Frenkel is affiliated with Naples Community Hospital.

When was this NPI record last updated?

The NPPES record for Lindsay Frenkel was last updated on June 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.