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RAMON HENDRIK GUILLEN
NPI 1922732734
Internal Medicine in Laconia, NH

Active since July 16, 2022PECOS EnrolledAccepts Medicare Assignment
724 N MAIN ST, LACONIA, NH 03246(603) 524-9201 Get Directions Write a Review

NPPES record last updated: June 26, 2025. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jun 26, 2025, Jul 16, 2022 (2 updates tracked since 2022).

About Ramon Hendrik Guillen NPPES

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

RAMON HENDRIK GUILLEN (NPI 1922732734) is an individual internal medicine provider in Laconia, New Hampshire, licensed in New Hampshire (34222) and active in the NPI registry since July 2022. He is enrolled in Medicare PECOS, is affiliated with Concord Hospital, and is a graduate of Other (2020).

NPPES Registry Identity

NPI1922732734
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameRAMON HENDRIK GUILLEN
Location Address724 N MAIN STLaconia, NH 03246-2742
Mailing Address330 Mount Auburn StCambridge, MA 02138-5502
Phone(603) 524-9201
Sole ProprietorNo
Medical School CMSOtherGraduated 2020
Enumeration DateJuly 16, 2022
Last NPPES UpdateJune 26, 20252 updates tracked since enumeration
NPPES CertifiedJune 26, 2025
✔ NPI 1922732734 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in NH · 34222
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
724 N MAIN ST, Laconia, NH 03246
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Sheld, Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and more.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

Ramon Hendrik Guillen 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 ID6103200431
PECOS Enrollment IDI20250829004343
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.

Hospital Affiliations CMS Care Compare 3

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

Concord Hospital

Acute Care Hospitals · Concord, NH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300001
Location250 Pleasant StConcord, NH 03301 · Merrimack County
Birthing friendly

Concord Hospital- Laconia

Acute Care Hospitals · Laconia, NH
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number300005
Location80 Highland StLaconia, NH 03246 · Belknap County
Emergency services

Concord Hospital- Franklin

Critical Access Hospitals · Franklin, NH
OwnershipVoluntary non-profit - Private
CMS Certification Number301306
Location15 Aiken AvenueFranklin, NH 03235 · Merrimack County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 03246 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
$132.09 typical visit price
range $57.75 – $174.26
Typical copayment $33.02 (range $14.43 – $43.56)
Most-billed visit code 99204
Established Patient
$101.54 typical visit price
range $18.70 – $142.15
Typical copayment $25.38 (range $4.67 – $35.53)
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 20

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

ABIGAIL TURNER RD, LD
Dietitian, Registered
724 N MAIN ST
LACONIA, NH 03246
Belknap County (603) 527-5151
ANA SILVIA DEL SOCORRO HERNANDEZ AVILES MD
Pediatrics
724 N MAIN ST, LACONIA CLINIC
LACONIA, NH 03246
Belknap County (603) 527-2711
DR. FREDERIC FERNHOLZ MD
Urology
724 N MAIN ST
LACONIA, NH 03246
Belknap County (603) 524-5151
DR. ALAN AWRICH MD
Surgery
724 N MAIN ST
LACONIA, NH 03246
Belknap County (603) 524-5151
DR. KENNETH LIMBURG DPM
Podiatrist
724 N MAIN ST
LACONIA, NH 03246
Belknap County (603) 524-5151
LRG HEALTHCARE
Clinic/Center (Multi-Specialty)
724 N MAIN ST
LACONIA, NH 03246
Belknap County (603) 524-5151
DR. MICHAEL GROENKE M.D.
Pediatrics
724 N MAIN ST
LACONIA, NH 03246
Belknap County (603) 524-5151
DR. WILLIAM M TOVELL M.D.
Obstetrics & Gynecology
724 N MAIN ST
LACONIA, NH 03246
Belknap County (603) 524-5151

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 Ramon Hendrik Guillen's NPI number?

The NPI number for Ramon Hendrik Guillen is 1922732734. It was assigned to this individual provider in the NPPES registry on July 16, 2022.

Where is Ramon Hendrik Guillen located?

Ramon Hendrik Guillen practices at 724 N Main St, Laconia, NH 03246. The listed phone number is (603) 524-9201.

What is Ramon Hendrik Guillen's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Ramon Hendrik Guillen enrolled in Medicare?

Yes. Ramon Hendrik Guillen 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 Ramon Hendrik Guillen accept?

Health plans from Anthem Blue Cross and Blue Sheld, Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care and WellSense Health Plan list Ramon Hendrik Guillen 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 Ramon Hendrik Guillen affiliated with any hospitals?

According to CMS data, Ramon Hendrik Guillen is affiliated with Concord Hospital, Concord Hospital- Laconia and Concord Hospital- Franklin.

When was this NPI record last updated?

The NPPES record for Ramon Hendrik Guillen was last updated on June 26, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.