OLGA GRIGORIEVA OLSON M.D. PH.D.
NPI 1780046243
Hospitalist in San Luis Obispo, CA

Q: What is Olga Grigorieva Olson's NPI number?

The NPI number for Olga Grigorieva Olson is 1780046243. It was assigned to this individual provider in the NPPES registry on March 24, 2016.

Q: What is Olga Grigorieva Olson's specialty?

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

Active since March 24, 2016PECOS EnrolledAccepts Medicare Assignment

1010 MURRAY AVE, SAN LUIS OBISPO, CA 93405(214) 712-2616 Get Directions Write a Review

NPPES record last updated: July 30, 2020. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Jul 30, 2020, Jul 8, 2017, Apr 25, 2017 and 1 more (4 updates tracked since 2016).

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About Olga Grigorieva Olson M.d. Ph.d. NPPES

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

OLGA GRIGORIEVA OLSON M.D. PH.D. (NPI 1780046243) is an individual hospitalist provider in San Luis Obispo, California, licensed in California (A162175) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS, maintains a secondary practice location in Odessa, and is a graduate of Other (1999).

NPPES Registry Identity

NPI1780046243

Entity TypeIndividualFemale

Primary Taxonomy208M00000X

Provider Legal NameOLGA GRIGORIEVA OLSONCredential: M.D. PH.D.

Location Address1010 MURRAY AVESan Luis Obispo, CA 93405-1806

Mailing Address1010 Murray AveSan Luis Obispo, CA 93405-1806 · (214) 712-2616

Phone(214) 712-2616

Sole ProprietorNo

Medical School CMSOtherGraduated 1999

Enumeration DateMarch 24, 2016

Last NPPES UpdateJuly 30, 20204 updates tracked since enumeration

NPPES CertifiedJuly 30, 2020

✔ NPI 1780046243 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 · A162175

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

1010 MURRAY AVE, San Luis Obispo, CA 93405

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Secondary Practice Location 1

Location 1701 W 5th StOdessa, TX 79763-4206 · Phone (432) 703-5375

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

Olga Grigorieva Olson M.d. Ph.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 ID8921391335

PECOS Enrollment IDI20200817001302

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

Galen Inpatient Physicians PC

Same address

Hospitalist

1010 MURRAY AVE
San Luis Obispo, CA 93405

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

NPI 1023837812 (805) 546-7600

Vituity Hospitalists PC

1.3 mi

Hospitalist

1911 JOHNSON AVE
San Luis Obispo, CA 93401

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

NPI 1104551639 (805) 543-5353

Hospital Medicine Of California Inc

138 mi

Hospitalist

7300 MEDICAL CENTER DR
West Hills, CA 91307

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

NPI 1770037236 (818) 712-4100

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.

669 services320 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.

328 services195 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.

172 services167 patients

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.

132 services129 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 93405 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

$135.73 typical visit price

range $59.84 – $178.89

Typical copayment $33.93 (range $14.96 – $44.72)

Most-billed visit code 99204

Established Patient

$104.82 typical visit price

range $19.70 – $146.55

Typical copayment $26.20 (range $4.92 – $36.63)

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.

Referred Medical Equipment & Supplies CMS DME claims 3

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Walker, folding, wheeled, adjustable or fixed height E0143

DME-Other DME · category DE000N

1 supplier11 claims11 services$54.61 avg. paid by Medicare

Portable gaseous oxygen system, rental; includes portable container, regulator, flowmeter, humidifier, cannula or mask, and tubing E0431

DME-Oxygen and Supplies · category DC000N

1 supplier50 claims51 services$17.18 avg. paid by Medicare

Oxygen concentrator, single delivery port, capable of delivering 85 percent or greater oxygen concentration at the prescribed flow rate E1390

DME-Oxygen and Supplies · category DC002N

1 supplier55 claims56 services$84.41 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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. CURBY DIRK JENKINS DO

Anesthesiology