Independent US Healthcare Provider Directory & Public Medical Database
Active NPI 1457464836 Individual Practitioner Male Practitioner

Dr. Grant Dennis Doolittle , DO

Internal Medicine • Ames, IA

✓ Accepts Medicare Assignment

Professional Overview & Biography Verified Profile Summary

Dr. Grant Doolittle, DO is a certified Internal Medicine practicing in Ames, IA. With approximately 27 years of clinical experience since completing medical education in 1999, Dr. Doolittle delivers high-quality medical care to the local community at 1215 DUFF AVE.

Dr. Doolittle is affiliated with Mcfarland Clinic Pc and accepts Medicare assignment.

Frequently performed procedures and clinical services include insertion of needle into vein for collection of blood sample, injection, denosumab, 1 mg, established 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

1215 Duff Ave
Mcfarland Clinic Pc

Ames, IA 500103014

Telephone 5152394431
Fax 5152394742
Associated Practice Facility / Clinic
🏢 Hy-Vee Inc Facility NPI 1902848229

Medicare Profile & Education

Medical School

Other

Graduation Year

1999

Medicare Assignment

✓ Accepts Assignment

Telehealth Flag

In-Person Only

Specialty Benchmarks & Practice Insights

Comparative analytics for Internal Medicine in Ames, IA

Senior Veteran Specialist (>20 Yrs)
Practitioner Clinical Experience
27 Yrs +3.2 yrs vs City Avg
City Avg: 23.8 Yrs
State Avg: 25.0 Yrs
Regional Practice Density
18 Specialists

Practicing in Ames, IA (907 Statewide)

Telehealth Adoption Rate
27.8% Regional Adoption

In-Person Office Visits Only

Medicare Pricing Discount
45.8% Avg Savings

Under CMS Medicare Fee Schedule vs Standard Submitted Charges

Clinical Seniority & Experience Comparison

Dr. Doolittle (27 Years) 27 Yrs
Ames Specialty Average (23.8 Years) 23.8 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
36415 Insertion of needle into vein for collection of blood sample
1,349 603 $10.00 $8.65
J0897 Injection, denosumab, 1 mg
1,020 12 $35.53 $25.44
99213 Established patient office or other outpatient visit, typically 15 minutes
779 493 $136.78 $83.90
85025 Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count
773 558 $27.03 $7.61
80061 Blood test, lipids (cholesterol and triglycerides)
762 505 $49.00 $13.12
99214 Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more
752 468 $202.63 $118.50
84439 Thyroxine (thyroid chemical), free
629 503 $32.00 $8.84
84443 Blood test, thyroid stimulating hormone (TSH)
629 503 $63.00 $16.46
80053 Blood test, comprehensive group of blood chemicals
565 520 $41.00 $10.35
80048 Blood test, basic group of blood chemicals (calcium, total)
549 392 $33.00 $8.29
G2211 Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's
525 363 $16.00 $15.30
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit
489 489 $137.75 $119.67
83036 Hemoglobin A1C level
419 271 $37.00 $9.52
G0103 Prostate cancer screening; prostate specific antigen test (psa)
278 278 $31.95 $18.92
84460 Liver enzyme (sgpt), level
272 262 $20.00 $5.19
82043 Urine microalbumin (protein) level
215 123 $22.00 $5.66
G0444 Annual depression screening, 5 to 15 minutes
196 196 $35.00 $17.04
G0008 Administration of influenza virus vaccine
181 180 $41.67 $29.94
90662 Influenza vaccine split virus, preservative free
177 176 $90.84 $81.15
91322 Sarscov2 vac 50 mcg/0.5ml im
163 140 $173.64 $153.03
90480 Admn sarscov2 vacc 1 dose
163 140 $48.98 $39.93
82306 Vitamin d-3 level
134 101 $112.00 $29.01
93000 Routine ekg using at least 12 leads including interpretation and report
129 117 $46.00 $13.01
96372 Injection beneath the skin or into muscle for therapy, diagnosis, or prevention
127 23 $49.00 $13.20
85610 Blood test, clotting time
120 16 $16.00 $4.20
99490 Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month
111 16 $65.00 $57.88
J3420 Injection, vitamin b-12 cyanocobalamin, up to 1000 mcg
110 11 $4.00 $1.27
87631 Detection test for multiple types of respiratory virus
108 92 $504.00 $139.78
87581 Detection test by nucleic acid for mycoplasma pneumoniae (bacteria), amplified probe technique
108 92 $132.00 $34.39
84550 Uric acid level, blood
74 50 $16.00 $4.43
81001 Manual urinalysis test with examination using microscope, automated
64 53 $12.00 $3.11
99495 Transitional care management services for problem of at least moderate complexity
52 43 $304.96 $190.39
87086 Bacterial colony count, urine
52 41 $31.00 $7.91
99212 Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more
46 45 $82.96 $52.11
99496 Transitional care management services for problem of high complexity
40 33 $431.35 $257.99
82607 Cyanocobalamin (vitamin B-12) level
38 35 $56.00 $14.78
81003 Automated urinalysis test
38 34 $9.00 $2.20
G0009 Administration of pneumococcal vaccine
35 35 $39.00 $29.94
82746 Folic acid level
34 31 $56.00 $14.41
90677 Pneumococcal conjugate vaccine, 20 valent (pcv20), for intramuscular use
34 34 $317.06 $289.92
69210 Removal of impacted ear wax
33 29 $126.88 $43.63
84153 Psa (prostate specific antigen) measurement, total
33 30 $70.00 $18.02
82570 Creatinine level to test for kidney function or muscle injury
33 33 $19.00 $5.08
82728 Ferritin (blood protein) level
31 24 $50.00 $13.36
87186 Evaluation of antimicrobial drug (antibiotic, antifungal, antiviral), microdilution or agar dilution
29 23 $33.00 $8.48
87077 Bacterial culture for aerobic isolates
29 23 $31.00 $7.92
86140 Measurement C-reactive protein for detection of infection or inflammation
26 23 $19.00 $5.08
85652 Red blood cell sedimentation rate, to detect inflammation, automated
26 24 $10.00 $2.65
G0402 Initial preventive physical examination; face-to-face visit, services limited to new beneficiary during the first 12 months of medicare enrollment
20 20 $184.00 $151.93
83540 Iron level
19 18 $25.00 $6.34
83550 Iron binding capacity
19 18 $32.00 $8.57
99442 Telephone medical discussion with physician, 11-20 minutes
17 15 $92.00 $83.61
83735 Magnesium level
16 15 $25.00 $6.57
84165 Protein measurement, serum
15 15 $53.00 $10.53
84155 Total protein level, blood
15 15 $13.00 $3.60
87798 Detection test for organism
13 13 $134.00 $34.39
86431 Rheumatoid factor level
13 13 $22.00 $5.56
99215 Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more
12 12 $270.67 $166.71
G0438 Annual wellness visit; includes a personalized prevention plan of service (pps), initial visit
11 11 $190.45 $152.64

Medical Specialties & State Licenses

CMS Verified: 2020-11-11
Internal Medicine Primary Specialty

NUCC Taxonomy Code: 207R00000X

State License IA 3721

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.

Additional State Medicaid & Healthcare Payer Identifiers

Medicaid State Provider ID
1457464836 (IA)

Hospital & Practice Group Affiliations

Mcfarland Clinic Pc

421 E Merle Hibbs Blvd, Marshalltown, IA 501581992

Phone: 6417520654

Mcfarland Clinic Pc

1015 Duff Ave, Ames, IA 500105733

Phone: 5152394400

Mcfarland Clinic Pc

705 8th St, Story City, IA 502481301

Phone: 5157335191

Mcfarland Clinic Pc

230 S 6th St, Nevada, IA 502012534

Phone: 5153825471

Mcfarland Clinic Pc

1214 S Grant Rd, Carroll, IA 514013102

Phone: 7127921500

Mcfarland Clinic Pc

510 Bank St, Webster City, IA 505952204

Phone: 5158326700

Mcfarland Clinic Pc

1215 Duff Ave, Ames, IA 500105400

Phone: 5152394400

Mcfarland Clinic Pc

3500 University Blvd, Ames, IA 500103014

Phone: 5152393040

Mcfarland Clinic Pc

1111 Duff Ave, Ames, IA 500105745

Phone: 5152394472

Practice Associates & Co-Workers

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

10 Associated Practitioners
Dr. Matias Gerstner , MD

Internal Medicine

NPI 1053044560

Doctor of Medicine (M.D.)

Dr. Sarah Hayes , MD

Internal Medicine

NPI 1154310209

Doctor of Medicine (M.D.)

Brittany Schumacher , ARNP

Nurse Practitioner

NPI 1164270237

Advanced Registered Nurse Practitioner

Dr. Rupal Amin , MD

Internal Medicine

NPI 1225024995

Doctor of Medicine (M.D.)

NPI 1528055688

Doctor of Medicine (M.D.)

Erica Henricks , ARNP

Nurse Practitioner

NPI 1568842920

Advanced Registered Nurse Practitioner

Career & Practice History Timeline

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

6 Historical Events
NPI Profile Active July 20, 2012

NPI status registered as active in NPPES database

📍
Updated Practice Location July 20, 2012

Registered at 1215 DUFF AVE, MCFARLAND CLINIC PC, AMES, IA 500103014 (Tel: 5152394431)

📍
Updated Business Mailing Address July 20, 2012

Registered at PO BOX 3014, 1215 DUFF AVE MCFARLAND CLINIC PC, AMES, IA 500103014 (Tel: 5152394400)

👤
Provider Name / Credentials Updated July 20, 2012

Recorded as GRANT DOOLITTLE, DO

🎓
Medical Taxonomy / Specialty Registered (Primary Specialty) July 20, 2012

Internal Medicine (License #3721 in IA)

🟢
Initial NPI Registration & Enumeration August 17, 2006

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: 1457464836
Entity Type:
Individual Provider Physician, Nurse Practitioner, or Solo Healthcare Professional (Type 1 NPI)
Enumeration Date: August 17, 2006
Last Update: November 11, 2020
Sole Proprietor: No

Mailing Address

Po Box 3014, 1215 Duff Ave Mcfarland Clinic Pc

Ames, IA 500103014

Phone: 5152394400

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.