DR. MARY M KOUMAS (D.O.) – Family Medicine Physician, NPI 1306838909

DR. MARY M KOUMAS (D.O.) is a healthcare provider. based in Lake forest, California. specializing in FAMILY PRACTICE, OSTEOPATHIC MANIPULATIVE MEDICINE. They hold the professional credentials D.O.. They hold a License No. 20A4402 (CA). The NPI Number for DR. MARY M KOUMAS (D.O.) is 1306838909

Main info

Female
48 Years Of Experience
Accepts Medicare Assignment
Name
DR. MARY M KOUMAS (D.O.)
NPI
1306838909
Phone
(949) 770-1950
Address
24401 MUIRLANDS BLVD
Enumeration Date
19 August 2005
Last Update Date
9 December 2008

Doctor Profile

Medical School Name
AT STILL UNIVERSITY OF HEALTH SCIENCES, COLLEGE OF OSTEO MED, KIRKSVILLE
Secondary Phone
9497701950
Graduation Year
1978 (48 years ago)
PAC ID
2769549310
Group Practice PAC ID
3274594650
Professional Enrollment ID
I20090325000724
Address ID
CA926303948LA24401BLVD302
Telehealth
Yes
Data current as of
19 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience54
Completeness75
Years active:20State licenses:1Digital endpointsOther names

13,194 FAMILY PRACTICE in CA

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Provider Addresses for DR. MARY M KOUMAS (D.O.)

  • Lake Forest Medical Dental Building, 24401, Muirlands Boulevard, Lake Forest, Orange County, California, 92630, United States

    SUITE #A

    LAKE FOREST, CA 926303948

    Phone: (949) 770-1950

    Fax: (949) 770-8599

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

No Open Payments data available for this provider.

This can happen when there are no reportable CMS Open Payments records.

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2009-03-25

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.

Enrollment records

1

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20090325000724IFamily PracticeCATBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99214Established patient office or other outpatient visit, 30-39 minutes26486$0
G0439Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit6767$0
99213Established patient office or other outpatient visit, 20-29 minutes5938$0
99497Advance care planning, first 30 minutes4747$0
View full utilization report →

Insurance plans in this area (ZIP 92630)

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Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 3274594650View full group profile
NameSpecialtyState
Family PracticeCA

Reviews

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Frequently asked questions

How is DR. MARY M KOUMAS (D.O.) identified in CMS data?
CMS-hosted NPPES data lists DR. MARY M KOUMAS (D.O.) with NPI 1306838909.
Is DR. MARY M KOUMAS (D.O.) listed as active for patients and plans?
The listing shows DR. MARY M KOUMAS (D.O.) as active in the NPI system.
What taxonomy line describes DR. MARY M KOUMAS (D.O.)?
For research purposes, treat DR. MARY M KOUMAS (D.O.) as Family Medicine Physician in this dataset. Clinical services aligned with this taxonomy classification.
Where should I expect DR. MARY M KOUMAS (D.O.) on a map?
Expect Lake Forest, California as a primary anchor for DR. MARY M KOUMAS (D.O.) unless the record lists multiple sites.
Is the information about DR. MARY M KOUMAS (D.O.) up to date?
Data updates when providers file changes in NPPES — treat critical facts as "verify if unsure."

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