DR. JOSEPH G MALLON MD
NPI 1407041197
Hospitalist in San Francisco, CA

Q: What is Joseph Mallon's NPI number?

The NPI number for Joseph Mallon is 1407041197. It was assigned to this individual provider in the NPPES registry on September 6, 2007.

Q: What is Joseph Mallon'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 Joseph Mallon was last updated on December 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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 September 06, 2007PECOS EnrolledAccepts Medicare Assignment

72.02/100

CMS Quality Rating

900 HYDE ST, SAN FRANCISCO, CA 94109(415) 353-6817 Get Directions Write a Review

NPPES record last updated: December 8, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 8, 2025, Sep 18, 2017 (2 updates tracked since 2017).

On this page

About Dr. Joseph G Mallon Md NPPES

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

DR. JOSEPH G MALLON MD (NPI 1407041197) is an individual hospitalist provider in San Francisco, California, licensed in California (A97574) and active in the NPI registry since September 2007. He is enrolled in Medicare PECOS and is a graduate of Other (2001).

NPPES Registry Identity

NPI1407041197

Entity TypeIndividualMale

Primary Taxonomy208M00000X

Provider Legal NameDR. JOSEPH G MALLONCredential: MD

Location Address900 HYDE STSan Francisco, CA 94109-4806

Mailing AddressPo Box 470054San Francisco, CA 94147-0054 · (888) 962-7550 · Fax (818) 408-4972

Phone(415) 353-6817

Sole ProprietorNo

Medical School CMSOtherGraduated 2001

Enumeration DateSeptember 6, 2007

Last NPPES UpdateDecember 8, 20252 updates tracked since enumeration

NPPES CertifiedDecember 8, 2025

✔ NPI 1407041197 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 · A97574

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 ListedInternal MedicineTaxonomy 207R00000X · License A97574 (CA)

900 HYDE ST, San Francisco, CA 94109

Open in Google Maps ↗

Other Identifiers 1

OtherA97574CA · Medical License

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. Joseph G Mallon Md 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 ID5890882500

PECOS Enrollment IDI20071027000054

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 Joseph Mallon reassigns Medicare billing to 6 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Galen Inpatient Physicians Inc

Same address

Internal Medicine

900 HYDE ST
San Francisco, CA 94109

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

NPI 1730313933 (415) 353-6000

Vituity Hospitalists PC

Same address

Hospitalist

900 HYDE ST
San Francisco, CA 94109

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

NPI 1659858025 (415) 353-6000

Pacific Inpatient Medical Group

0.4 mi

Internal Medicine

1101 VAN NESS AVE
San Francisco, CA 94109

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

NPI 1447447248 (415) 531-9047

San Francisco Unified Physicians Group, Inc.

0.6 mi

Hospitalist

845 JACKSON ST
San Francisco, CA 94133

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

NPI 1982104162 (415) 982-2400

Farallon Inpatient Medical Group Inc

95 mi

Emergency Medicine

5176 HILL RD E
Lakeport, CA 95453

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

NPI 1417441080 (707) 262-5000

Pacific Redwood Medical Group Inc

103 mi

Emergency Medicine

275 HOSPITAL DR
Ukiah, CA 95482

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

NPI 1033103676 (707) 462-7900

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 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.

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.

299 services15 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.

40 services24 patients

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.

31 services17 patients

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.

21 services12 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.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94109 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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

72.02/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

61.76

Improvement Activities

Cost

46.72

Referred Medical Equipment & Supplies CMS DME claims 2

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

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 supplier11 claims11 services$56.50 avg. paid by Medicare

Portable oxygen concentrator, rental E1392

DME-Oxygen and Supplies · category DC002N

1 supplier11 claims11 services$34.18 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.

ANJA OEFLER RPH

Pharmacist