LEIF R HASS M.D.
NPI 1528175346
Hospitalist in Oakland, CA

Q: What is Leif Hass's NPI number?

The NPI number for Leif Hass is 1528175346. It was assigned to this individual provider in the NPPES registry on August 25, 2006.

Q: What is Leif Hass'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 Leif Hass was last updated on April 11, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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 August 25, 2006PECOS EnrolledAccepts Medicare Assignment

350 HAWTHORNE AVE RM 2346, OAKLAND, CA 94609(510) 869-6883 Get Directions Write a Review

NPPES record last updated: April 11, 2019. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Apr 11, 2019, May 16, 2017 (2 updates tracked since 2017).

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About Leif R Hass M.d. NPPES

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

LEIF R HASS M.D. (NPI 1528175346) is an individual hospitalist provider in Oakland, California, licensed in California (G80367) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, maintains 9 additional practice locations, and is a graduate of Other (1993).

NPPES Registry Identity

NPI1528175346

Entity TypeIndividualMale

Primary Taxonomy208M00000X

Provider Legal NameLEIF R HASSCredential: M.D.

Location Address350 HAWTHORNE AVE RM 2346Oakland, CA 94609-3108

Mailing Address2350 W El Camino Real, Fl 2Mountain View, CA 94040-6203 · (650) 845-7649 · Fax (650) 691-6193

Phone(510) 869-6883

Sole ProprietorNo

Medical School CMSOtherGraduated 1993

Enumeration DateAugust 25, 2006

Last NPPES UpdateApril 11, 20192 updates tracked since enumeration

✔ NPI 1528175346 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 · G80367

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 ListedFamily MedicineTaxonomy 207Q00000X · License G80367 (CA)

350 HAWTHORNE AVE RM 2346, Oakland, CA 94609

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Secondary Practice Locations 9

Location 112 Camino Encinas Fl 2Orinda, CA 94563-3304 · Phone (510) 204-8166 · Fax (510) 506-7724

Location 24053 Lone Tree Way Ste 101Antioch, CA 94531-6210 · Phone (925) 756-3400 · Fax (510) 506-7728

Location 32850 Telegraph Ave Ste 130Berkeley, CA 94705-1159 · Phone (510) 204-8110 · Fax (510) 506-7721

Location 4350 John Muir Pkwy Ste 105Brentwood, CA 94513-5183 · Phone (925) 776-7725 · Fax (510) 506-7727

Location 5500 San Pablo AveAlbany, CA 94706-1103 · Phone (510) 204-8130 · Fax (510) 506-7726

Location 6350 30th St Ste 100Oakland, CA 94609-3422 · Phone (510) 204-8290 · Fax (510) 506-7725

Location 720101 Lake Chabot Rd Fl 3Castro Valley, CA 94546-5305 · Phone (510) 886-3400 · Fax (510) 506-7729

Location 812 Camino EncinasOrinda, CA 94563-3304 · Phone (510) 204-8180 · Fax (925) 254-0687

Location 92500 Milvia StBerkeley, CA 94704-2636 · Phone (510) 204-5600 · Fax (510) 204-5462

Other Identifiers 2

Medicaid00G803670CA

OtherG80367CA · State License

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Leif R Hass 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 ID1355396656

PECOS Enrollment IDI20050321000222

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.

Areas of Expertise CMS Part B claims 5

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.

538 services236 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.

198 services195 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.

47 services47 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.

21 services18 patients

Hospital discharge day management, 30 minutes or less 99238

Hospital discharge day management of 30 minutes or less includes finalizing your treatment, discussing your progress, and planning after-care at home. It ensures you're ready to leave the hospital and continue recovery safely.

15 services15 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94609 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

$153.83 typical visit price

range $69.00 – $202.35

Typical copayment $38.45 (range $17.25 – $50.58)

Most-billed visit code 99204

Established Patient

$119.48 typical visit price

range $23.44 – $166.46

Typical copayment $29.87 (range $5.86 – $41.61)

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 4

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

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

DME-Oxygen and Supplies · category DC000N

2 suppliers16 claims16 services$14.02 avg. paid by Medicare

Patient lift, hydraulic or mechanical, includes any seat, sling, strap(s) or pad(s) E0630

DME-Other DME · category DE000N

1 supplier18 claims18 services$35.23 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

3 suppliers24 claims24 services$66.07 avg. paid by Medicare

Standard wheelchair K0001

DME-Wheelchairs · category DD000N

3 suppliers17 claims17 services$16.46 avg. paid by Medicare

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

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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.

SHARON HSI JAN CHAN M.D.

Hospitalist