NATHAN CHARLES KARP
NPI 1134623556
Internal Medicine - Rheumatology in Palo Alto, CA

Q: What is Nathan Karp's NPI number?

The NPI number for Nathan Karp is 1134623556. It was assigned to this individual provider in the NPPES registry on March 20, 2018.

Q: What is Nathan Karp's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Q: When was this NPI record last updated?

The NPPES record for Nathan Karp was last updated on September 14, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.

Active since March 20, 2018PECOS EnrolledAccepts Medicare Assignment

795 EL CAMINO REAL, PALO ALTO, CA 94301(650) 853-2275 Get Directions Write a Review

NPPES record last updated: September 14, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

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About Nathan Charles Karp NPPES

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

NATHAN CHARLES KARP (NPI 1134623556) is an individual rheumatology provider in Palo Alto, California, licensed in California (A165847) and active in the NPI registry since March 2018. He is enrolled in Medicare PECOS and is a graduate of University Of California, San Francisco School Of Medicine (2018).

NPPES Registry Identity

NPI1134623556

Entity TypeIndividualMale

Primary Taxonomy207RR0500X

Provider Legal NameNATHAN CHARLES KARP

Location Address795 EL CAMINO REALPalo Alto, CA 94301-2302

Mailing Address325 Distel CirLos Altos, CA 94022-1408 · (650) 853-2275

Phone(650) 853-2275

Sole ProprietorNo

Medical School CMSUniversity Of California, San Francisco School Of MedicineGraduated 2018

Enumeration DateMarch 20, 2018

Last NPPES UpdateSeptember 14, 2023

NPPES CertifiedSeptember 14, 2023

✔ NPI 1134623556 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians

Taxonomy Code207RR0500X

License✔ Licensed in CA · A165847

Definition

An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.

795 EL CAMINO REAL, Palo Alto, CA 94301

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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

Nathan Charles Karp 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 ID4981058765

PECOS Enrollment IDI20230927003098

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 8

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.

Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301

Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.

142 services26 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.

89 services71 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.

78 services60 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.

70 services70 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.

53 services43 patients

Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or G2212

This service refers to extended doctor visits where your healthcare provider spends additional time evaluating and managing your health beyond the primary procedure's required time. This includes each extra 15 minutes spent by the physician on the same day as the primary service.

38 services21 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94301 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

$156.67 typical visit price

range $70.37 – $206.04

Typical copayment $39.16 (range $17.59 – $51.51)

Most-billed visit code 99204

Established Patient

$121.77 typical visit price

range $23.96 – $169.60

Typical copayment $30.44 (range $5.99 – $42.40)

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.

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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.

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