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DR. NATHANIEL G CLARK MD
NPI 1386687234
Internal Medicine - Endocrinology, Diabetes & Metabolism in Hyannis, MA

Active since June 14, 2006PECOS EnrolledAccepts Medicare Assignment
433 W MAIN ST, HYANNIS, MA 02601(508) 778-4777(508) 771-9555 Get Directions Write a Review

NPPES record last updated: September 27, 2012. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Dr. Nathaniel G Clark Md NPPES

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

DR. NATHANIEL G CLARK MD (NPI 1386687234) is an individual endocrinology, diabetes & metabolism provider in Hyannis, Massachusetts, licensed in Massachusetts (72154) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS, is affiliated with Cape Cod Hospital, and is a graduate of University Of Massachusetts Medical School (1988).

NPPES Registry Identity

NPI1386687234
Entity TypeIndividualMale
Primary Taxonomy207RE0101X
Provider Legal NameDR. NATHANIEL G CLARKCredential: MD
Location Address433 W MAIN STHyannis, MA 02601-3644
Mailing Address433 W Main StHyannis, MA 02601-3644 · (508) 778-4777 · Fax (508) 771-9555
Phone(508) 778-4777
Fax(508) 771-9555
Sole ProprietorNo
Medical School CMSUniversity Of Massachusetts Medical SchoolGraduated 1988
Enumeration DateJune 14, 2006
Last NPPES UpdateSeptember 27, 2012
✔ NPI 1386687234 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Endocrinology, Diabetes & MetabolismAllopathic & Osteopathic Physicians
Taxonomy Code207RE0101X
License✔ Licensed in MA · 72154
Definition
An internist who concentrates on disorders of the internal (endocrine) glands such as the thyroid and adrenal glands. This specialist also deals with disorders such as diabetes, metabolic and nutritional disorders, obesity, pituitary diseases and menstrual and sexual problems.
433 W MAIN ST, Hyannis, MA 02601
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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. Nathaniel G Clark Md 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 ID7012949548
PECOS Enrollment IDI20100627000014
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 2

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.
63 services49 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.
49 services49 patients

Hospital Affiliations CMS Care Compare 2

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

Cape Cod Hospital

Acute Care Hospitals · Hyannis, MA
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220012
Location27 Park StreetHyannis, MA 02601 · Barnstable County
Emergency services Birthing friendly

Falmouth Hospital

Acute Care Hospitals · Falmouth, MA
4/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number220135
Location67 & 100 Ter Heun DriveFalmouth, MA 02540 · Barnstable County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02601 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
$134.47 typical visit price
range $58.86 – $177.36
Typical copayment $33.61 (range $14.71 – $44.34)
Most-billed visit code 99204
Established Patient
$103.48 typical visit price
range $19.11 – $144.84
Typical copayment $25.87 (range $4.77 – $36.21)
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.

Referred Medical Equipment & Supplies CMS DME claims 8

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Supplies for maintenance of insulin infusion catheter, per week A4224
DME-Other DME · category DE017N
7 suppliers27 claims339 services$18.33 avg. paid by Medicare
Supplies for external insulin infusion pump, syringe type cartridge, sterile, each A4225
DME-Other DME · category DE017N
7 suppliers30 claims880 services$2.37 avg. paid by Medicare
Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
52 suppliers180 claims715 services$5.93 avg. paid by Medicare
Lancets, per box of 100 A4259
DME-Medical/Surgical Supplies · category DA000N
34 suppliers89 claims169 services$1.02 avg. paid by Medicare
External ambulatory infusion pump, insulin E0784
DME-Other DME · category DE017N
3 suppliers18 claims18 services$301.91 avg. paid by Medicare
Insulin for administration through dme (i.e., insulin pump) per 50 units J1817
Treatment-Injections and Infusions (nononcologic) · category RI000N
4 suppliers12 claims900 services$6.98 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 16

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

ELIZABETH DUNTON NP
Nurse Practitioner
433 W MAIN ST
HYANNIS, MA 02601
Barnstable County (508) 778-4777
DR. MICHAEL EDWARD MARKOWSKI D.O.
Psychiatry & Neurology (Neurology)
433 W MAIN ST, EMERALD PHYSICIANS
HYANNIS, MA 02601
Barnstable County (508) 778-4777
GREATER BOSTON ALLERGY ASTHMA SINUS & IMMUNOLOGY CENTERS, P.C.
Internal Medicine (Allergy & Immunology)
433 W MAIN ST
HYANNIS, MA 02601
Barnstable County (508) 362-0099
MICHELLE THOMAS
Nurse Practitioner (Family)
433 W MAIN ST
HYANNIS, MA 02601
Barnstable County (508) 778-4777
DR. ANN R SKOPEK M.D.
Internal Medicine
433 W MAIN ST
HYANNIS, MA 02601
Barnstable County (508) 778-4777
PATRICIA TONRA NP
Nurse Practitioner
433 W MAIN ST
HYANNIS, MA 02601
Barnstable County (508) 778-4777
HEATHER CANTERBURY LOWES MALCOMSON NP
Nurse Practitioner (Primary Care)
433 W MAIN ST
HYANNIS, MA 02601
Barnstable County (508) 778-4777
MS. DIANA ANDRUSYSHYN APRN
Nurse Practitioner (Family)
433 W MAIN ST
HYANNIS, MA 02601
Barnstable County (508) 778-4777

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 Nathaniel Clark's NPI number?

The NPI number for Nathaniel Clark is 1386687234. It was assigned to this individual provider in the NPPES registry on June 14, 2006.

Where is Nathaniel Clark located?

Nathaniel Clark practices at 433 W Main St, Hyannis, MA 02601. The listed phone number is (508) 778-4777.

What is Nathaniel Clark's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.

Is Nathaniel Clark enrolled in Medicare?

Yes. Nathaniel Clark 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.

Is Nathaniel Clark affiliated with any hospitals?

According to CMS data, Nathaniel Clark is affiliated with Cape Cod Hospital and Falmouth Hospital.

When was this NPI record last updated?

The NPPES record for Nathaniel Clark was last updated on September 27, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.