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

CHARLOTTE ANNE SADLER M.D.
NPI 1598044117
Emergency Medicine - Undersea and Hyperbaric Medicine in San Diego, CA

Q: What is Charlotte Sadler's NPI number?

The NPI number for Charlotte Sadler is 1598044117. It was assigned to this individual provider in the NPPES registry on August 12, 2011.

Q: What is Charlotte Sadler's specialty?

The primary specialty registered for this NPI is Emergency Medicine, specializing in Undersea and Hyperbaric Medicine, with taxonomy code 207PE0005X.

Q: When was this NPI record last updated?

The NPPES record for Charlotte Sadler was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 52 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.

Active since August 12, 2011PECOS EnrolledAccepts Medicare Assignment

200 W ARBOR DR, SAN DIEGO, CA 92103(800) 926-8273 Get Directions Write a Review

NPPES record last updated: September 10, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 10, 2026, May 23, 2023, Mar 21, 2018 (3 updates tracked since 2018).

On this page

About Charlotte Anne Sadler M.d. NPPES

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

CHARLOTTE ANNE SADLER M.D. (NPI 1598044117) is an individual undersea and hyperbaric medicine provider in San Diego, California, licensed in California (A118033) and active in the NPI registry since August 2011. She is enrolled in Medicare PECOS, maintains 4 additional practice locations, and is a graduate of University Of Iowa, Rj & L Carver College Of Medicine (2010).

NPPES Registry Identity

NPI1598044117

Entity TypeIndividualFemale

Primary Taxonomy207PE0005X

Provider Legal NameCHARLOTTE ANNE SADLERCredential: M.D.

Location Address200 W ARBOR DRSan Diego, CA 92103-9000

Mailing AddressFile 57326Los Angeles, CA 90074-7326 · (800) 926-8273

Phone(800) 926-8273

Sole ProprietorYes

Medical School CMSUniversity Of Iowa, Rj & L Carver College Of MedicineGraduated 2010

Enumeration DateAugust 12, 2011

Last NPPES UpdateSeptember 10, 20263 updates tracked since enumeration

NPPES CertifiedSeptember 10, 2026

✔ NPI 1598044117 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyEmergency Medicine · Undersea and Hyperbaric MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207PE0005X

License✔ Licensed in CA · A118033

Definition

A specialist who treats decompression illness and diving accident cases and uses hyperbaric oxygen therapy to treat such conditions as carbon monoxide poisoning, gas gangrene, non-healing wounds, tissue damage from radiation and burns, and bone infections. This specialist also serves as a consultant to other physicians in all aspects of hyperbaric chamber operations, and assesses risks and applies appropriate standards to prevent disease and disability in divers and other persons working in altered atmospheric conditions.

Also ListedEmergency MedicineTaxonomy 207P00000X · License A 118033 (CA)

200 W ARBOR DR, San Diego, CA 92103

Open in Google Maps ↗

Secondary Practice Locations 4

Location 18910 Villa La Jolla Dr Ste 100LA Jolla, CA 92037-1701 · Phone (800) 926-8273

Location 29300 Campus Point DrLA Jolla, CA 92037-1300 · Phone (800) 926-8273

Location 3477 N El Camino Real Ste D204Encinitas, CA 92024-1370 · Phone (800) 926-8273

Location 46655 Alvarado RdSan Diego, CA 92120-5208 · Phone (800) 926-5273

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

Charlotte Anne Sadler 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 ID9739300419

PECOS Enrollment IDI20141021003198

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 Charlotte Sadler reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Regents Of The University Of California

Same address

Allergy & Immunology

200 W ARBOR DR
San Diego, CA 92103

Reassigned Medicare billing, California enrollment
Also billed through NPI 1003934803 (California)
1,051 clinicians in this Medicare group

NPI 1487772380 (800) 926-8273

Regents Of The University Of California

0.1 mi

Emergency Medicine

200 W ARBOR DR
San Diego, CA 92103

Reassigned Medicare billing, California enrollment
221 clinicians in this Medicare group

NPI 1780870899 (619) 543-6222

Uc San Diego Health Community Group

19 mi

Community Health

16950 VIA TAZON
San Diego, CA 92127

Reassigned Medicare billing, California enrollment
271 clinicians in this Medicare group

NPI 1659864247 (858) 249-5908

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 6

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.

Residence visit for established patient with low level of medical decision making, per day, if using time, at least 30 minutes 99348

An established patient home visit is a 25-minute appointment where a healthcare provider visits you at your home. This service is for patients who have previously been seen by the provider. It includes a check-up and discussion about your health concerns.

65 services53 patients

Emergency department visit with high level of medical decision making 99285

An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.

48 services48 patients

Management of oxygen chamber therapy 99183

Oxygen chamber therapy involves breathing pure oxygen in a pressurized room or tube. It's used to treat various conditions like wounds that won't heal due to diabetes or radiation injury. In this therapy, your body's tissues get more oxygen to promote healing and fight infection.

35 services16 patients

Residence visit for established patient with moderate level of medical decision making, per day, if using time, at least 40 minutes 99349

An established patient home visit is a medical appointment conducted at your home, typically lasting around 40 minutes. This service is ideal for patients who may find it difficult to travel to a healthcare facility. During this visit, a healthcare professional will evaluate your health status, manage your care, and answer any health-related questions you may have.

31 services30 patients

Emergency department visit with moderate level of medical decision making 99284

An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.

18 services18 patients

Residence visit for established patient with straightforward medical decision making, per day, if using time, at least 15 minutes 99347

An established patient home visit is a service where a healthcare professional visits your home for a 15-minute check-up. It's designed for patients who have previously seen the professional. The visit may include basic health assessments and discussions about your ongoing care.

14 services12 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92103 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

$94.87 typical visit price

range $62.10 – $184.71

Typical copayment $23.71 (range $15.52 – $46.17)

Most-billed visit code 99203

Established Patient

$108.42 typical visit price

range $20.62 – $151.42

Typical copayment $27.10 (range $5.15 – $37.85)

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.

DR. RAMIN MOTARJEMI M.D.

Internal Medicine (Geriatric Medicine)