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DR. NICHOLAS FISKE KEELER AG-ACNP, DNP, RN
NPI 1144840786
Nurse Practitioner - Acute Care in San Francisco, CA

Active since April 23, 2020PECOS EnrolledAccepts Medicare Assignment
400 PARNASSUS AVE STE 5015TH, SAN FRANCISCO, CA 94143(415) 353-9088(415) 353-3889 Get Directions Write a Review

NPPES record last updated: August 6, 2023. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Dr. Nicholas Fiske Keeler Ag-acnp, Dnp, Rn NPPES

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

DR. NICHOLAS FISKE KEELER AG-ACNP, DNP, RN (NPI 1144840786) is an individual acute care provider in San Francisco, California, licensed in California (95013484) and active in the NPI registry since April 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1144840786
Entity TypeIndividualMale
Primary Taxonomy363LA2100X
Provider Legal NameDR. NICHOLAS FISKE KEELERCredential: AG-ACNP, DNP, RN
Location Address400 PARNASSUS AVE STE 5015THSan Francisco, CA 94143-2202
Mailing Address400 Parnassus Ave Ste 5015thSan Francisco, CA 94143-2202 · (415) 353-9088 · Fax (415) 353-3889
Phone(415) 353-9088
Fax(415) 353-3889
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateApril 23, 2020
Last NPPES UpdateAugust 6, 2023
NPPES CertifiedAugust 6, 2023
✔ NPI 1144840786 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · Acute CarePhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LA2100X
License✔ Licensed in CA · 95013484
400 PARNASSUS AVE STE 5015TH, San Francisco, CA 94143
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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

Dr. Nicholas Fiske Keeler Ag-acnp, Dnp, Rn 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 ID6406278431
PECOS Enrollment IDI20200622001034
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 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 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.
125 services61 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.
27 services27 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.
15 services15 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.
15 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94143 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
$104.51 typical visit price
range $69.00 – $202.35
Typical copayment $26.12 (range $17.25 – $50.58)
Most-billed visit code 99203
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.

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 Nicholas Keeler's NPI number?

The NPI number for Nicholas Keeler is 1144840786. It was assigned to this individual provider in the NPPES registry on April 23, 2020.

Where is Nicholas Keeler located?

Nicholas Keeler practices at 400 Parnassus Ave Ste 5015th, San Francisco, CA 94143. The listed phone number is (415) 353-9088.

What is Nicholas Keeler's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Acute Care, with taxonomy code 363LA2100X.

Is Nicholas Keeler enrolled in Medicare?

Yes. Nicholas Keeler 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.

When was this NPI record last updated?

The NPPES record for Nicholas Keeler was last updated on August 6, 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.