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JOHN CHARLES PFEFFER M.D.
NPI 1851456602
Obstetrics & Gynecology in Modesto, CA

Active since December 22, 2006PECOS Enrolled
83.63/100
CMS Quality Rating
1541 FLORIDA AVE STE 304, MODESTO, CA 95350(209) 522-1027(209) 529-5398 Get Directions Write a Review

NPPES record last updated: April 4, 2024. Verified against the NPPES registry weekly; last sync: August 23, 2026.

About John Charles Pfeffer M.d. NPPES

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

JOHN CHARLES PFEFFER M.D. (NPI 1851456602) is an individual obstetrics & gynecology provider in Modesto, California, licensed in California (C400620) and active in the NPI registry since December 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1851456602
Entity TypeIndividualMale
Primary Taxonomy207V00000X
Provider Legal NameJOHN CHARLES PFEFFERCredential: M.D.
Location Address1541 FLORIDA AVE STE 304Modesto, CA 95350-4439
Mailing Address1400 Florida Ave, Ste. 207Modesto, CA 95350-4422 · (209) 522-1027 · Fax (209) 522-7956
Phone(209) 522-1027
Fax(209) 529-5398
Sole ProprietorNo
Enumeration DateDecember 22, 2006
Last NPPES UpdateApril 4, 2024
NPPES CertifiedApril 4, 2024
✔ NPI 1851456602 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in CA · C400620
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
1541 FLORIDA AVE STE 304, Modesto, CA 95350
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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 (PECOS)

John Charles Pfeffer M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

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.
208 services129 patients
Cervical or vaginal cancer screening; pelvic and clinical breast examination G0101
This procedure involves checking for health issues in the lower abdomen and chest area. It helps identify early signs of certain conditions, increasing the chance for successful treatment. It's a routine check-up that's important for maintaining good health.
81 services81 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.
33 services33 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.
16 services15 patients
Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory Q0091
A Papanicolaou smear, often called a Pap smear, is a test to check for changes in cells. A small sample is gently collected from the lower region and sent to a lab for examination. This helps in early detection of potential health issues.
13 services13 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95350 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
$133.94 typical visit price
range $58.87 – $176.60
Typical copayment $33.48 (range $14.71 – $44.15)
Most-billed visit code 99204
Established Patient
$73.16 typical visit price
range $19.28 – $144.60
Typical copayment $18.29 (range $4.82 – $36.15)
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.

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.

83.63/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality72.79
Promoting Interoperability97
Improvement Activities40
Cost62.56

Other Providers at the Same Location NPPES

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

DOUGLAS M PHAN M.D.
Otolaryngology
1541 FLORIDA AVE STE 304
MODESTO, CA 95350
Stanislaus County (209) 577-3388

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 John Pfeffer's NPI number?

The NPI number for John Pfeffer is 1851456602. It was assigned to this individual provider in the NPPES registry on December 22, 2006.

Where is John Pfeffer located?

John Pfeffer practices at 1541 Florida Ave Ste 304, Modesto, CA 95350. The listed phone number is (209) 522-1027.

What is John Pfeffer's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is John Pfeffer enrolled in Medicare?

Yes. John Pfeffer is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for John Pfeffer was last updated on April 4, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.