Active NPI 1124314497 Individual Practitioner Female Practitioner

Dr. Laura Elizabeth Grimmer , MD

Surgery • Fenton, MO

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Laura Grimmer, MD is a certified Surgery practicing in Fenton, MO. With approximately 15 years of clinical experience since completing medical education in 2011, Dr. Grimmer delivers high-quality medical care to the local community at 1011 BOWLES AVE STE 425.

Dr. Grimmer is affiliated with Ssm Medical Group Inc and accepts Medicare assignment.

Frequently performed procedures and clinical services include initial hospital care with straightforward or low-level medical decision making, if using time, at least, follow-up hospital inpatient care per day, new patient outpatient office visit. Full Medicare procedure pricing transparency rates and service volume details are listed on this profile.

Practice Location & Contact Primary Location

Practice Address

1011 Bowles Ave Ste 425

Fenton, MO 630262384

Telephone 6364965080

Associated Practice Facility / Clinic

🏢 Ssm Medical Group, Inc. Facility NPI 1194736116

Medicare Profile & Education

Medical School

Other

Graduation Year

2011

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Surgery in Fenton, MO

Established Specialist (10-20 Yrs)

Practitioner Clinical Experience

15 Yrs -8.2 yrs vs City Avg

City Avg: 23.2 Yrs

State Avg: 26.1 Yrs

Regional Practice Density

7 Specialists

Practicing in Fenton, MO (766 Statewide)

Telehealth Adoption Rate

0.0% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount

58.4% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Grimmer (15 Years) 15 Yrs

Fenton Specialty Average (23.2 Years) 23.2 Yrs

Performed Procedures & Service Volume

Top Medicare Part B procedures performed by this practitioner

CMS Official Data (2024)

Reporting Year:

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	15	15	$300.00	$124.87

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	28	28	$300.00	$126.72
99231 Follow-up hospital inpatient care per day, typically 15 minutes	19	12	$110.00	$48.37
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	12	12	$325.17	$130.12

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	29	29	$300.00	$132.38
99231 Follow-up hospital inpatient care per day, typically 15 minutes	23	13	$110.00	$38.03
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	14	12	$160.00	$69.87
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	13	13	$228.46	$133.68

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	44	27	$100.77	$37.95
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	36	36	$286.81	$134.37
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	22	18	$157.95	$71.02

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	69	31	$81.00	$39.35
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	42	38	$272.43	$138.22
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	20	20	$193.20	$130.27
99213 Established patient office or other outpatient visit, typically 15 minutes	15	14	$84.27	$51.56
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	12	12	$89.75	$75.70

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99231 Follow-up hospital inpatient care per day, typically 15 minutes	46	23	$60.11	$39.06
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	43	39	$200.88	$135.87
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	31	31	$152.90	$125.65
99213 Established patient office or other outpatient visit, typically 15 minutes	24	18	$60.08	$50.69
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	21	15	$109.29	$72.07
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	17	17	$83.00	$75.72
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	13	13	$84.00	$78.01

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes	43	22	$97.00	$72.36
99204 New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more	37	37	$150.41	$126.20
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	28	28	$186.00	$136.26
99203 New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more	21	21	$86.19	$76.28
99213 Established patient office or other outpatient visit, typically 15 minutes	14	11	$71.43	$47.38
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more	12	11	$89.33	$77.92

HCPCS Code & Description	Services	Patients	Submitted Charge	Medicare Allowed
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes	11	11	$186.00	$135.36

Medical Specialties & State Licenses

CMS Verified: 2025-10-17

Surgery Primary Specialty

NUCC Taxonomy Code: 208600000X

State License MO 2016007205

A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.

Hospital & Practice Group Affiliations

Ssm Medical Group Inc

1035 Bellevue Ave, Saint Louis, MO 631171843

Phone: 3146471115

Secondary Practice Locations

1035 Bellevue Ave Ste 500

Saint Louis, MO 631171843

Phone: 3149254770

4921 Parkview Pl, Ste 8c

Saint Louis, MO 631101032

Phone: 3144548877

Practice Associates & Co-Workers

Healthcare professionals and specialists practicing at this location or sharing practice phone/fax

4 Associated Practitioners

Lindsey Adams , NP-C

Nurse Practitioner

NPI 1326611757

Nurse Practitioner (Certified)

Dr. Patricia Hodgins , MD

Urology

NPI 1457791808

Doctor of Medicine (M.D.)

Dr. Joel Hammond , MD

Surgery

NPI 1790892552

Doctor of Medicine (M.D.)

Dr. Allison Davis , MD

Surgery

NPI 1871617993

Doctor of Medicine (M.D.)

Career & Practice History Timeline

Chronological log of verified NPI updates, location relocations, credentials, and registry changes

8 Historical Events

📍

Updated Practice Location October 17, 2025

Registered at 1011 BOWLES AVE STE 425, FENTON, MO 630262384 (Tel: 6364965080)

📍

Updated Business Mailing Address October 17, 2025

Registered at PO BOX 955534, SAINT LOUIS, MO 631955534

✅

NPI Profile Active November 15, 2016

NPI status registered as active in NPPES database

📍

Updated Practice Location November 15, 2016

Registered at 4921 PARKVIEW PL, STE 8C, SAINT LOUIS, MO 631101032 (Tel: 3144548877)

📍

Updated Business Mailing Address November 15, 2016

Registered at 660 S EUCLID AVE, C B 8109, SAINT LOUIS, MO 631101010 (Tel: 3144548877)

👤

Provider Name / Credentials Updated November 15, 2016

Recorded as LAURA GRIMMER, MD

🎓

Medical Taxonomy / Specialty Registered (Primary Specialty) November 15, 2016

Surgery (License #2016007205 in MO)

🟢

Initial NPI Registration & Enumeration June 24, 2011

First registered as active Individual Practitioner in NPPES Database.

Patient & Community Reviews

Verified patient ratings, medical care experiences, and facility photos

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NPI Administrative Meta

NPI Number: 1124314497

Entity Type:

Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)

Enumeration Date: June 24, 2011

Last Update: October 17, 2025

Sole Proprietor: No

Update or Correct Profile

Mailing Address

Po Box 955534

Saint Louis, MO 631955534

Public Domain Record This profile contains public domain information published by CMS and NPPES under the Freedom of Information Act (FOIA).

⚠️ Medical Disclaimer

This directory listing is for informational purposes only and does not constitute medical advice, diagnosis, or physician endorsement. If you are experiencing a medical emergency, please call 911 immediately.