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DR. ANDREW Y HSING M.D.
NPI 1790769131
Internal Medicine - Pulmonary Disease in Encinitas, CA

Active since November 30, 2005PECOS EnrolledAccepts Medicare Assignment
320 SANTA FE DR STE 107-C, ENCINITAS, CA 92024(760) 230-8994 Get Directions Write a Review

NPPES record last updated: March 17, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Mar 17, 2018, Mar 1, 2018 (2 updates tracked since 2018).

About Dr. Andrew Y Hsing M.d. NPPES

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

DR. ANDREW Y HSING M.D. (NPI 1790769131) is an individual pulmonary disease provider in Encinitas, California, licensed in California (A127271) and active in the NPI registry since November 2005. He is enrolled in Medicare PECOS, maintains 3 additional practice locations, and is a graduate of Boston University School Of Medicine (2003).

NPPES Registry Identity

NPI1790769131
Entity TypeIndividualMale
Primary Taxonomy207RP1001X
Provider Legal NameDR. ANDREW Y HSINGCredential: M.D.
Location Address320 SANTA FE DR STE 107-CEncinitas, CA 92024-5138
Mailing Address320 Santa Fe Dr Ste 107-cEncinitas, CA 92024-5138 · (760) 230-8994
Phone(760) 230-8994
Sole ProprietorNo
Medical School CMSBoston University School Of MedicineGraduated 2003
Enumeration DateNovember 30, 2005
Last NPPES UpdateMarch 17, 20182 updates tracked since enumeration
✔ NPI 1790769131 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 4

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RP1001X
License✔ Licensed in CA · A127271
Definition
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
Also ListedInternal MedicineTaxonomy 207R00000X · License A127271 (CA)
Also ListedInternal Medicine · Critical Care MedicineTaxonomy 207RC0200X · License A127271 (CA)
Also ListedInternal Medicine · Sleep MedicineTaxonomy 207RS0012X · License A127271 (CA)
320 SANTA FE DR STE 107-C, Encinitas, CA 92024
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Secondary Practice Locations 3

Location 12200 Bergquist Dr, Suite 1Lackland A F B, TX 78236-9907 · Phone (210) 292-5235
Location 26010 Hidden Valley Road 200Carlsbad, CA 92011-9907 · Phone (760) 631-3000
Location 3354 Santa Fe DriveEncinitas, CA 92024-9907 · Phone (760) 230-9664

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

Dr. Andrew Y Hsing 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 ID3971745738
PECOS Enrollment IDI20140905000972
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

3

Medicare enrollment records show Andrew Hsing reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Scott A Eisman MD Inc
0.1 mi
Pulmonary Disease
326 SANTA FE DR STE 100
Encinitas, CA 92024
  • Reassigned Medicare billing, California enrollment
  • 16 clinicians in this Medicare group
NPI 1801184031 (760) 230-8994
Acute Care Associates, Inc
0.2 mi
Pulmonary Disease
354 SANTA FE DR
Encinitas, CA 92024
  • Reassigned Medicare billing, California enrollment
  • 32 clinicians in this Medicare group
NPI 1841387214 (858) 379-1391
United Medical Doctors
40 mi
Gastroenterology
28078 BAXTER RD STE 530
Murrieta, CA 92563
  • Reassigned Medicare billing, California enrollment
  • 240 clinicians in this Medicare group
NPI 1770559981 (951) 566-5229

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 9

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.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
554 services363 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.
211 services175 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
146 services146 patients
Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215
This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.
114 services104 patients
Home sleep test (hst) with type iii portable monitor, unattended; minimum of 4 channels: 2 respiratory movement/airflow, 1 ecg/heart rate and 1 oxygen saturation G0399
A Home Sleep Test (HST) with a Type III Portable Monitor is an unattended test that records your breathing, heart rate, and oxygen levels during sleep. This test uses a minimum of 4 channels to monitor these parameters, helping to diagnose sleep disorders.
89 services86 patients
New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205
This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.
24 services24 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 92024 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.

Referred Medical Equipment & Supplies CMS DME claims 21

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

Tubing with integrated heating element for use with positive airway pressure device A4604
DME-Other DME · category DE001N
13 suppliers600 claims600 services$33.23 avg. paid by Medicare
Full face mask used with positive airway pressure device, each A7030
DME-Other DME · category DE001N
14 suppliers257 claims257 services$71.33 avg. paid by Medicare
Face mask interface, replacement for full face mask, each A7031
DME-Other DME · category DE001N
14 suppliers248 claims711 services$28.34 avg. paid by Medicare
Cushion for use on nasal mask interface, replacement only, each A7032
DME-Other DME · category DE001N
11 suppliers268 claims1,517 services$14.99 avg. paid by Medicare
Pillow for use on nasal cannula type interface, replacement only, pair A7033
DME-Other DME · category DE001N
14 suppliers275 claims1,579 services$12.85 avg. paid by Medicare
Nasal interface (mask or cannula type) used with positive airway pressure device, with or without head strap A7034
DME-Other DME · category DE001N
16 suppliers564 claims564 services$44.78 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

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

STEPHANIE SHIN MD
Internal Medicine (Pulmonary Disease)
320 SANTA FE DR STE 107-C
ENCINITAS, CA 92024
San Diego County (760) 230-8994

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 Andrew Hsing's NPI number?

The NPI number for Andrew Hsing is 1790769131. It was assigned to this individual provider in the NPPES registry on November 30, 2005.

Where is Andrew Hsing located?

Andrew Hsing practices at 320 Santa Fe Dr Ste 107-C, Encinitas, CA 92024. The listed phone number is (760) 230-8994.

What is Andrew Hsing's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Andrew Hsing enrolled in Medicare?

Yes. Andrew Hsing is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Andrew Hsing's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Andrew Hsing reassigns Medicare benefits to 3 organizations: Scott A Eisman MD Inc (Encinitas, CA), Acute Care Associates, Inc (Encinitas, CA) and United Medical Doctors (Murrieta, CA). Each 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 Andrew Hsing'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 Andrew Hsing was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.