DR. KATHRYN NOEL MIDDLETON DO
NPI 1417539503
Family Medicine in Menlo Park, CA

Active since April 27, 2021PECOS EnrolledAccepts Medicare Assignment
325 SHARON PARK DR STE F3, MENLO PARK, CA 94025(888) 663-6331(415) 252-7176 Get Directions Write a Review

NPPES record last updated: October 17, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Mar 17, 2025, Aug 14, 2024, Aug 5, 2024 and 3 more (6 updates tracked since 2021).

About Dr. Kathryn Noel Middleton Do NPPES

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

DR. KATHRYN NOEL MIDDLETON DO (NPI 1417539503) is an individual family medicine provider in Menlo Park, California, licensed in California (24393) and active in the NPI registry since April 2021. She is enrolled in Medicare PECOS, is affiliated with Exeter Hospital Inc, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1417539503
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. KATHRYN NOEL MIDDLETONCredential: DO
Location Address325 SHARON PARK DR STE F3Menlo Park, CA 94025-6848
Mailing Address1 Embarcadero Ctr Ste 1900San Francisco, CA 94111-3723 · (415) 658-6791
Fax(415) 252-7176
Sole ProprietorNo
Medical School CMSArizona College Of Osteopathic Medicine Mid Western UniversityGraduated 2021
Enumeration DateApril 27, 2021
Last NPPES UpdateOctober 17, 20256 updates tracked since enumeration
NPPES CertifiedOctober 17, 2025
NPI 1417539503 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
Licenses Licensed in CA · 24393 Licensed in NH · 33207 Licensed in MA · 1019967
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
Also ListedHospitalistTaxonomy 208M00000X · License 33207 (NH)
325 SHARON PARK DR STE F3, Menlo Park, CA 94025

Secondary Practice Locations 2

Location 1333 Borthwick AvePortsmouth, NH 03801-7128 · Phone (603) 559-4129
Location 2394 Harrison AveBoston, MA 02118-2212 · Phone (888) 663-6331 · Fax (415) 252-7176

Accepted Insurance

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. Kathryn Noel Middleton Do 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 ID8123421161
PECOS Enrollment IDI20240807003620, I20240814003349, I20251007003987
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 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.
73 services47 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.
33 services33 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.
19 services19 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.
16 services13 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Exeter Hospital Inc

Acute Care Hospitals · Exeter, NH
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300023
Location5 Alumni DriveExeter, NH 03833 · Rockingham County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94025 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.

Other Providers at the Same Location NPPES 5

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

Family Medicine
325 SHARON PARK DR STE F3
MENLO PARK, CA 94025
Internal Medicine
325 SHARON PARK DR STE F3
MENLO PARK, CA 94025
Nurse Practitioner (Family)
325 SHARON PARK DR STE F3
MENLO PARK, CA 94025
Internal Medicine
325 SHARON PARK DR STE F3
MENLO PARK, CA 94025
Pediatrics
325 SHARON PARK DR STE F3
MENLO PARK, CA 94025

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 Kathryn Middleton's NPI number?

The NPI number for Kathryn Middleton is 1417539503. It was assigned to this individual provider in the NPPES registry on April 27, 2021.

Where is Kathryn Middleton located?

Kathryn Middleton practices at 325 Sharon Park Dr Ste F3, Menlo Park, CA 94025. The listed phone number is (888) 663-6331.

What is Kathryn Middleton's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Kathryn Middleton enrolled in Medicare?

Yes. Kathryn Middleton 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.

What insurance does Kathryn Middleton accept?

Health plans from WellSense Health Plan list Kathryn Middleton as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Kathryn Middleton affiliated with any hospitals?

According to CMS data, Kathryn Middleton is affiliated with Exeter Hospital Inc.

When was this NPI record last updated?

The NPPES record for Kathryn Middleton was last updated on October 17, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.