Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

JOHN NESEMANN MD, MSC
NPI 1124777586
Ophthalmology in San Francisco, CA

Q: What is John Nesemann's NPI number?

The NPI number for John Nesemann is 1124777586. It was assigned to this individual provider in the NPPES registry on March 22, 2022.

Q: What is John Nesemann's specialty?

The primary specialty registered for this NPI is Ophthalmology with taxonomy code 207W00000X.

Q: When was this NPI record last updated?

The NPPES record for John Nesemann was last updated on June 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 days 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 March 22, 2022PECOS Enrolled

513 PARNASSUS AVE # S321, SAN FRANCISCO, CA 94143(415) 476-1239 Get Directions Write a Review

NPPES record last updated: June 29, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About John Nesemann Md, Msc NPPES

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

JOHN NESEMANN MD, MSC (NPI 1124777586) is an individual ophthalmology provider in San Francisco, California, licensed in California (A189201) and active in the NPI registry since March 2022. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of University Of California, Geffen School Of Medicine (2022).

NPPES Registry Identity

NPI1124777586

Entity TypeIndividualMale

Primary Taxonomy207W00000X

Provider Legal NameJOHN NESEMANNCredential: MD, MSC

Location Address513 PARNASSUS AVE # S321San Francisco, CA 94143-2205

Mailing Address513 Parnassus Ave # S321San Francisco, CA 94143-2205

Phone(415) 476-1239

Sole ProprietorNo

Medical School CMSUniversity Of California, Geffen School Of MedicineGraduated 2022

Enumeration DateMarch 22, 2022

Last NPPES UpdateJune 29, 2026

NPPES CertifiedJune 29, 2026

✔ NPI 1124777586 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOphthalmologyAllopathic & Osteopathic Physicians

Taxonomy Code207W00000X

License✔ Licensed in CA · A189201

Definition

An ophthalmologist has the knowledge and professional skills needed to provide comprehensive eye and vision care. Ophthalmologists are medically trained to diagnose, monitor and medically or surgically treat all ocular and visual disorders. This includes problems affecting the eye and its component structures, the eyelids, the orbit and the visual pathways. In so doing, an ophthalmologist prescribes vision services, including glasses and contact lenses.

513 PARNASSUS AVE # S321, San Francisco, CA 94143

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Secondary Practice Locations 2

Location 11001 Potrero Avenue, Bldg. 5, 4MSan Francisco, CA 94110-3510 · Phone (628) 206-8025 · Fax (628) 206-2681

Location 2490 Illinois Street, Floor 2, Box 0944San Francisco, CA 94158 · Phone (415) 353-2020

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

John Nesemann Md, Msc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8628416112

PECOS Enrollment IDI20260423000939

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.

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

$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

$84.91 typical visit price

range $23.44 – $166.46

Typical copayment $21.22 (range $5.86 – $41.61)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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.

JONATHAN BERHANU EJIE

Student in an Organized Health Care Education/Training Program