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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

ROSEMARIE FLORIAN M.D.
NPI 1275911844
Internal Medicine - Endocrinology, Diabetes & Metabolism in Los Angeles, CA

Active since May 14, 2015PECOS Enrolled
85.18/100
CMS Quality Rating
1520 SAN PABLO ST STE 1000, LOS ANGELES, CA 90033(323) 442-5100 Get Directions Write a Review

NPPES record last updated: October 18, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Oct 18, 2026, Jul 23, 2020, Jul 23, 2018 (3 updates tracked since 2018).

About Rosemarie Florian M.d. NPPES

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

ROSEMARIE FLORIAN M.D. (NPI 1275911844) is an individual endocrinology, diabetes & metabolism provider in Los Angeles, California, licensed in California (A148259) and active in the NPI registry since May 2015. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1275911844
Entity TypeIndividualFemale
Primary Taxonomy207RE0101X
Provider Legal NameROSEMARIE FLORIANCredential: M.D.
Location Address1520 SAN PABLO ST STE 1000Los Angeles, CA 90033-5312
Mailing AddressPo Box 50938Los Angeles, CA 90074-0938 · (323) 442-5100
Phone(323) 442-5100
Sole ProprietorYes
Enumeration DateMay 14, 2015
Last NPPES UpdateOctober 18, 20263 updates tracked since enumeration
NPPES CertifiedOctober 18, 2026
✔ NPI 1275911844 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 3

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in CA · A148259
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
Also ListedInternal MedicineTaxonomy 207R00000X · License A148259 (CA)
Also ListedPreventive Medicine · Public Health & General Preventive MedicineTaxonomy 2083P0901X · License A148259 (CA)
1520 SAN PABLO ST STE 1000, Los Angeles, CA 90033
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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 (PECOS)

Rosemarie Florian 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 Reassignment

Medicare enrollment records show Rosemarie Florian reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Faculty Physicians And Surgeons Of Llusm
6.3 mi
Transplant Surgery
1505 WILSON TERRACE, SUITE 155
Glendale, CA 91206
  • Reassigned Medicare billing, California enrollment
  • 2,584 clinicians in this Medicare group
NPI 1508255175 (909) 558-3636

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

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 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.
19 services19 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90033 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
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

85.18/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality71.81
Promoting Interoperability82
Improvement Activities40
Cost64.54

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.

SERENA GHANSHANI MD
Internal Medicine (Cardiovascular Disease)
1520 SAN PABLO ST STE 1000
LOS ANGELES, CA 90033
Los Angeles County (323) 442-5100
SHYAM BHANSALI D.O.
Internal Medicine (Hospice and Palliative Medicine)
1520 SAN PABLO ST STE 1000
LOS ANGELES, CA 90033
Los Angeles County (323) 442-5100
MAY HNIN LWIN MD
Internal Medicine (Nephrology)
1520 SAN PABLO ST STE 1000
LOS ANGELES, CA 90033
Los Angeles County (323) 442-5100
DR. NIPAPORN PICHETSHOTE M.D.
Internal Medicine (Gastroenterology)
1520 SAN PABLO ST STE 1000
LOS ANGELES, CA 90033
Los Angeles County (323) 442-5100
DR. SAAHIR KHAN M.D., PH.D.
Internal Medicine (Infectious Disease)
1520 SAN PABLO ST STE 1000
LOS ANGELES, CA 90033
Los Angeles County (323) 442-5100
YUEN HUNG NG AGACNP
Nurse Practitioner
1520 SAN PABLO ST STE 1000
LOS ANGELES, CA 90033
Los Angeles County (323) 442-5100
MR. STEPHEN W MARER MD
Internal Medicine (Infectious Disease)
1520 SAN PABLO ST STE 1000
LOS ANGELES, CA 90033
Los Angeles County (323) 442-5100
MS. PRESCILLIA MIANDABO TSHIAMALA FNP-BC
Nurse Practitioner (Family)
1520 SAN PABLO ST STE 1000
LOS ANGELES, CA 90033
Los Angeles County (323) 442-5100

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 Rosemarie Florian's NPI number?

The NPI number for Rosemarie Florian is 1275911844. It was assigned to this individual provider in the NPPES registry on May 14, 2015.

Where is Rosemarie Florian located?

Rosemarie Florian practices at 1520 San Pablo St Ste 1000, Los Angeles, CA 90033. The listed phone number is (323) 442-5100.

What is Rosemarie Florian's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Rosemarie Florian enrolled in Medicare?

Yes. Rosemarie Florian is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Rosemarie Florian's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Rosemarie Florian reassigns Medicare benefits to Faculty Physicians And Surgeons Of Llusm (Glendale, CA). The 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 Rosemarie Florian'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 Rosemarie Florian was last updated on October 18, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 days 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.