MELISSA OSORIO DO
NPI 1841828423
Hospitalist in La Jolla, CA

Q: What is Melissa Osorio's NPI number?

The NPI number for Melissa Osorio is 1841828423. It was assigned to this individual provider in the NPPES registry on March 30, 2020.

Q: What is Melissa Osorio's specialty?

The primary specialty registered for this NPI is Hospitalist with taxonomy code 208M00000X.

Q: When was this NPI record last updated?

The NPPES record for Melissa Osorio was last updated on June 15, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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 March 30, 2020PECOS EnrolledAccepts Medicare Assignment

10666 N TORREY PINES RD, LA JOLLA, CA 92037(858) 554-7909 Get Directions Write a Review

NPPES record last updated: June 15, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 15, 2023, Mar 30, 2020 (2 updates tracked since 2020).

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About Melissa Osorio Do NPPES

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

MELISSA OSORIO DO (NPI 1841828423) is an individual hospitalist provider in La Jolla, California, licensed in California (20A21198) and active in the NPI registry since March 2020. She is enrolled in Medicare PECOS and is a graduate of Touro Un Col Of Osteopathic Medicine, Henderson (2020).

NPPES Registry Identity

NPI1841828423

Entity TypeIndividualFemale

Primary Taxonomy208M00000X

Provider Legal NameMELISSA OSORIOCredential: DO

Location Address10666 N TORREY PINES RDLa Jolla, CA 92037-1027

Mailing Address10790 Rancho Bernardo RdSan Diego, CA 92127-5705 · (858) 554-7909

Phone(858) 554-7909

Sole ProprietorNo

Medical School CMSTouro Un Col Of Osteopathic Medicine, HendersonGraduated 2020

Enumeration DateMarch 30, 2020

Last NPPES UpdateJune 15, 20232 updates tracked since enumeration

NPPES CertifiedJune 15, 2023

✔ NPI 1841828423 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyHospitalistAllopathic & Osteopathic Physicians

Taxonomy Code208M00000X

License✔ Licensed in CA · 20A21198

Definition

Hospitalists are physicians whose primary professional focus is the general medical care of hospitalized patients. Their activities include patient care, teaching, research, and leadership related to Hospital Medicine. The term 'hospitalist' refers to physicians whose practice emphasizes providing care for hospitalized patients.

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

10666 N TORREY PINES RD, La Jolla, CA 92037

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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

Melissa Osorio Do 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 ID3779941695

PECOS Enrollment IDI20230623002531

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

Healthcare Partners Affiliates Medical Group

67 mi

Addiction Medicine

14591 NEWPORT AVE
Tustin, CA 92780

Reassigned Medicare billing, California enrollment
2,052 clinicians in this Medicare group

NPI 1891981502 (714) 442-4864

Elite Medical Group Of Southern California

86 mi

Internal Medicine

8816 FOOTHILL BLVD # 103-338
Rancho Cucamonga, CA 91730

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

NPI 1386424679 (000) 000-0000

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.

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.

131 services53 patients

Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222

Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.

90 services90 patients

Hospital discharge day management, more than 30 minutes 99239

Hospital discharge day management over 30 minutes involves a detailed process to ensure a smooth transition from hospital to home. It includes final examinations, discussion of your hospital stay, post-discharge instructions, and coordinating follow-up care.

28 services28 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.

22 services20 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92037 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

$140.22 typical visit price

range $62.10 – $184.71

Typical copayment $35.05 (range $15.52 – $46.17)

Most-billed visit code 99204

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.

MRS. SUSAN ELIZABETH MCKIM PA-C

Physician Assistant (Medical)