1. Home
  2. Directory
  3. California
  4. Lakeport
  5. Optometrist
  6. NPI Profile

DR. MARK LOUIS BUEHNERKEMPER O.D.
NPI 1770694267
Optometrist in Lakeport, CA

Active since August 31, 2006PECOS Enrolled
120 SOUTH MAIN STREET, LAKEPORT, CA 95453(707) 263-4294(707) 263-5180 Get Directions Write a Review

NPPES record last updated: March 31, 2011. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. Mark Louis Buehnerkemper O.d. NPPES

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

DR. MARK LOUIS BUEHNERKEMPER O.D. (NPI 1770694267) is an individual optometrist in Lakeport, California, licensed in California (10676) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1770694267
Entity TypeIndividualMale
Primary Taxonomy152W00000X
Provider Legal NameDR. MARK LOUIS BUEHNERKEMPERCredential: O.D.
Location Address120 SOUTH MAIN STREETLakeport, CA 95453-5017
Mailing Address3150 Bell Hill RdKelseyville, CA 95451-8317 · (707) 279-1032
Phone(707) 263-4294
Fax(707) 263-5180
Sole ProprietorYes
Enumeration DateAugust 31, 2006
Last NPPES UpdateMarch 31, 2011
✔ NPI 1770694267 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyOptometristEye and Vision Services Providers
Taxonomy Code152W00000X
License✔ Licensed in CA · 10676
Definition
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system.
120 SOUTH MAIN STREET, Lakeport, CA 95453
Open in Google Maps ↗

Other Identifiers 4

Medicare NSC1162030001CA
MedicaidSD0106760 1532330CA
Medicare UPINU64517CA
Medicare ID-Type UnspecifiedSD0106760CA

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Mark Louis Buehnerkemper O.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.

Medicare Billing Reassignment

Medicare enrollment records show Mark Buehnerkemper reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lindsey Alexander Od PA
1,550 mi
Optometrist
110 N ADELAIDE ST
Terrell, TX 75160
  • Reassigned Medicare billing, Texas enrollment
  • 4 clinicians in this Medicare group
NPI 1982950481 (972) 563-3253

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 95453 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.

Reported Quality Measures

Diabetes: Eye Exam
Percentage of patients 18-75 years of age with diabetes who had a retinal or dilated eye exam by an eye care professional during the measurement period or a negative retinal exam (no evidence of retinopathy) in the 12 months prior to the measurement period
94%49 patients4/55-star benchmark: 100%
e-Prescribing
At least one permissible prescription written by the MIPS eligible clinician is queried for a drug formulary and transmitted electronically using certified EHR technology.
99%142 patients4/55-star benchmark: 100%
Health Information Exchange
The MIPS eligible clinician that transitions or refers their patient to another setting of care or health care clinician (1) uses CEHRT to create a summary of care record; and (2) electronically transmits such summary to a receiving health care clinician for…
0%3,792 patients1/55-star benchmark: 96%
Provide Patient Access
At least one patient seen by the MIPS eligible clinician during the performance period is provided timely access to view online, download, and transmit to a third party their health information subject to the MIPS eligible clinician's discretion to withhold…
1%2,727 patients1/55-star benchmark: 100%
Secure Messaging
For at least one unique patient seen by the MIPS eligible clinician during the performance period, a secure message was sent using the electronic messaging function of CEHRT to the patient (or the patient-authorized representative), or in response to a secure…
0%2,727 patients1/55-star benchmark: 59%
Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

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 Mark Buehnerkemper's NPI number?

The NPI number for Mark Buehnerkemper is 1770694267. It was assigned to this individual provider in the NPPES registry on August 31, 2006.

Where is Mark Buehnerkemper located?

Mark Buehnerkemper practices at 120 South Main Street, Lakeport, CA 95453. The listed phone number is (707) 263-4294.

What is Mark Buehnerkemper's specialty?

The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.

Is Mark Buehnerkemper enrolled in Medicare?

Yes. Mark Buehnerkemper is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Mark Buehnerkemper's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Mark Buehnerkemper reassigns Medicare benefits to Lindsey Alexander Od PA (Terrell, TX). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Mark Buehnerkemper's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Mark Buehnerkemper accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 14 other insurers list Mark Buehnerkemper 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.

When was this NPI record last updated?

The NPPES record for Mark Buehnerkemper was last updated on March 31, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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.